THE AMERICAN SPECIES OF THIBAUDIEAE 
By Albert C. Smith 
INTRODUCTION 
The attention of the writer was first attracted to the group of 
plants known as Thibaudieae in 1926 and 1927, at which time he 
had opportunity to observe them in their natural habitat in the 
Eastern Cordillera of Colombia. A second trip, to Peru in 1929, 
furthered this interest and resulted in the addition of specimens of 
the group to American herbaria. These trips, both of which were 
under the auspices of the Smithsonian Institution and led by E. P. 
Killip, added so many specimens of Thibaudieae to the United 
States National Herbarium that to name them became highly de- 
sirable. In addition to these recent collections, a considerable quan- 
tity of other unstudied material had accumulated, owing to the 
efforts of several American collectors, notably Paul C. Standley, in 
Central America, and F. W. Pennell, H. H. Busby, E. P. Killip, 
and J. F. Macbride, in South America. 
In attempting to name these specimens it was found that the only 
comprehensive work on the tribe, that of R, Hoerold in 1909, was 
quite inadequate, having been based on the specimens in one her- 
barium only. In preparing the present paper, a task which has 
occupied much of the writer's time for two years, type material of 
nearly all previously described species has been seen, a privilege 
for which he is deeply indebted to Prof. L, Diels, director of the 
Botanisches Museum, Berlin, and Sir Arthur Hill, director of the 
Royal Botanic Gardens, Kew. At these two European institutions 
most of the type specimens had been deposited and were lent to the 
writer to facilitate his task. In addition it has been a privilege to 
study the specimens belonging to the Gray Herbarium of Harvard 
University; the Goeldi Museum of Para, Brazil; the Field Museum 
of Natural History; and the New York Botanical Garden. The 
institutions from which specimens have been studied are thus indi- 
cated in citations: Berlin (B), Field Museum (F), Gray Her- 
barium (G), Goeldi Museum (Go), Kew (K), United States Na- 
tional Museum (N), New York Botanical Garden (Y). To the 
311 
312 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
directors and curators of the above-mentioned institutions the writer 
wishes to acknowledge his appreciation of their cooperation. 
In addition the writer wishes to thank Dr. William R. Maxon 
and E. P. Killip for their assistance in the preparation of manu- 
script, Dr. J, H. Barnhart for his suggestions in certain nomen- 
clatorial questions, and especially Dr. H. A. Gleason for his con- 
stant advice and encouragement. 
HISTORICAL CONSIDERATION 
The first mention of any plant which may be placed in the tribe 
Thibaudieae aa it is at present understood was in 1763, when Adan- 
son1 published a brief description of the genus Chwpalon* His 
mention of the plant, in connection with Oxycoccus and Vaccinium, 
is so noncommittal that it can not with certainty be applied to any 
more recent collection. Probably a species of €mendishia was 
under consideration; but since no specific description is available, 
the name may be ignored. 
Among authentic genera, the first to be formally described was 
Ceratostema, mentioned at some length by Jussieu2 in 1789. 
Although no species is detailed, the specimen referred to was ob- 
viously Ceratostema periwianwri, subsequently published by Gmelin,8 
During the following years no specimens of Thibaudieae were de- 
scribed, probably because collections from tropical America had not 
yet reached Europe in any quantity. However, the collections of 
Ruiz and Pavon in Peru discovered several species referable to this 
tribe. Unfortunately these specimens were described in the fourth 
volume of Flora Peruviana et Chilensis, which consists of plates 
only and is very rare. It is a question whether this volume was 
available at such an early date as 1802, but it seems best to consider 
this the publication date for those plates that have suitable analyses. 
The descriptions made use of the generic names Ceratostema and 
Thibattdia; the plants figured belong to the genera, as at present con- 
stituted, Ceratostema, Siphonandra, Psamviisia, Thibaudia, and 
Cavendishia. One of the plates (384, top) represents a plant best 
referred to the tribe Euvaccinieae and not considered here. 
Concerning first publication of the generic name Thibavdia, the 
above-mentioned plates, although adequate as specific descriptions, 
are not considered as establishing the genus.4 The first formal de- 
1
 Fam. PI. 2:164. 1763. 
1
 Gen. pi. 163. 1789. 
•Byst. Nat. 2:676. 1791. 
4
 On the subject of the value of plates in generic name determination, see 
Sprague, " OrenoaniOe vs. Villebrunea" in Kew Bull. Misc. Inf. no. 10, 1928. 
SMITH—AMERICAN SPECIES OP TH IB AUDIBLE 313 
scription of the genus Thibaudia is in St. Hilaire.8 This descrip- 
tion, from the wording, probably antedates the issue of volume 4 of 
Ruiz and Pavon. Three species are described, obviously from the 
manuscript of Ruiz and Pavon, but in two cases the specific names 
have been slightly altered from those that appear on the plates. For 
the sake of uniformity, the names on the plates are in this paper 
considered authentic. The species first mentioned by St. Hilaire, 
which may be considered the type species of the genus, is T. melli- 
\flora (or T, mellifera according to St, Hilaire). 
In the subsequent 30 years a few more species were described 
under the generic name Tkibaiidia, mostly by Humboldt, Bonpland, 
and Kunth® in 1818. These species have since been referred to 
various genera of the tribe; the name Thibaudia as applied by 
authors of this period included all plants referable to the tribe. 
In 1836 the generic name C(uuendishia was introduced by Lindley,7 
but was not understood as being the common Andean genus by sub- 
sequent writers, who continued to neglect it, making necessary a 
large number of comparatively recent correct binominals. 
The following year Hooker described the genus Macle<mia8 and 
several species. At this time species of the tribe were introduced 
into England as horticultural plants by commercial collectors in 
South America. These were described by several authors in the 
following years and frequently were illustrated by elaborate plates. 
The genus AntJiopterus was described by Hooker9 in 1839. 
The most elaborate and comprehensive treatment of the tribe up 
to this date is by Dunal.10 He describes all species known to him 
and adds several new descriptions, applying the names Geratostemai, 
Thibaudia, CavendisMa (in regard to one species only), Macleama, 
and Anthoplerus to American members of the tribe. Like his 
predecessors, Dunal used the name Thibaiudia in its broadest sense. 
His descriptions are brief and often inadequate, without comment as 
to relationships. 
Among the authors who described tropical American plants at 
this period, and among them various Thibaudieae, was Bentham, 
whose new species, founded on the Hartweg collection, included the 
genus Oreanthes.11 
— - I ■ ' .—.II. ■■ . ■ ■ I . ■ I ■■■■ ■■■ * ■■■ I ' 1 1 
'Expos. Fam. Nat. 362. 1805. 
*Nov. Gen. & Sp. 3:268-275. 3818. 
TBot. Beg. 21: sub pi. 1191. 1836. 
* Hook. Icon. PL 2: pi. 109. 1837. 
"Hook. Icon. PL 3: pi- 2^S. 1889. 
"DC. Prodr. 7:552-578. 1839. 
u
 PL Hartw. 140. 1844. 
* 
314 CONTRIBUTIONS PROM THE NATIONAL HERBARIUM 
In 1851 Klotzsch12 published his " Studien iiber die naturliche 
Klasse Bicomes Linne," a "work whose chief value is in the strict 
delimitation of genera. The elaborate keys to genera published by 
Klotzsch are by no means natural, but his conceptions, as borne out 
by the species which he grouped together, were fundamentally 
modern. Genera of American Thibaudieae added by him include 
Tyria, JSatyria, Orthaea, Siphonandra, Semirarriisia, Eurygania, 
Polyboea, Proclesia, Tkemistoclesia, and Pscmmisia. To be sure, not 
all these genera &re maintained at the present time, but on the whole 
they represent very definite conceptions. 
In 1856 Planchon and Lindenia published a description using the 
generic name Oonocatyw, which has been neglected or placed in 
Oeratostemdi by subsequent authors. It is considered a distinct 
genus in the present treatment. In 1857 Grisebach14 published a 
short list of names without descriptions. These names, based on 
Lechler's collections from Peru, are without notation other than 
the collector's number; they are here considered nomdna nuda. In 
1863 the Brazilian and eastern Peruvian species were considered by 
Meissner." Here is described the genus Biedelia, which is synony- 
mous with Saiyria, 
Another important contribution to the study of the tribe was 
published in 1876 by Bentham and Hooker.16 Here, of course, only 
the genera are discussed, but the relationships between them are 
more clearly expressed than in previous works. The only generic 
name added is Findlaya, which is synonymous with Orthaea. Pre- 
viously in the same year Hooker17 had published the genus Notopora. 
Between this time and 1909 many species were described by vari- 
ous authors, none of whom considered generic relationships in a 
way to throw light on their phylogeny. The best treatment is that 
of Drude,18 whose key is adequate for general use. Niedenzu19 
studied in some detail the anatomy of the leaf in Ericaceae, the 
results being published in the form of a key that does not aid the 
taxonomist to a great extent. Another author whose name is found 
in this period is Hemsley,20 who published a summary of the Central 
American species, forming several new combinations in Cavendishia.. 
The only genus added about this time was Ru&bya Britton.21 
" Linnaea 24:1-88. 1851 
" Gard. Chron. 1856:152. 1856. 
"Lechl. Berb. Amer. Austr. 58. 1857. 
" Mart. Fl. Bras. *7:125-127, 171-174. 1883. 
"Gen. PI. 2:564-577. 1876. 
"Hook. Icon. PL 12:53. pi. 1159. 1876. 
18
 Eugl. & Prantl, Pflanzenfam. 41; 53-57. 1891. 
* Bot. Jahrb. Engler 11:134-263. 1880. 
" Biol. Centr. Amer. Bot 2:271-274. 1881. 
*
l
 Bull. Torrey Club 20:08. 1893. 
I 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 315 
In 1909 Hoerold22 published his " Systematische Gliederung und 
geographische Verbreitung der amerikanischen Thibaudieen," the 
most comprehensive treatment of the subject yet presented. After 
a historical and morphological discussion he gives a key to genera, 
which shows an understanding of their relationships, followed by 
keys to the species known to him. This key is incomplete in many 
places, but serves its purpose to some extent in the identification 
of specimens. Following is a discussion of geographic distribution, 
with species listed according to countries. The rest of the paper is 
occupied with the description of many new species, based on the 
collections of Sodiro, Triana, Weberbauer, Lehmann, and others. 
The differences between the fundamental conceptions of genera in 
Hoerold's paper and in the present treatment are several, and will 
be brought out in the following pages. The only new genus added 
by Hoerold was Englerodoxa. 
Since 1909 many species have been described by several authors, 
but no consideration of the group as a whole has been undertaken 
until the present. Authors who have added several species to the 
growing list of tropical American Thibaudieae are Blake (1922, 
1924), Mansfeld (1925), and Fedtschenko and Basilevskaya (1926). 
ECONOMIC CONSIDERATION 
A great number of species of the tribe Thibaudieae have a horti- 
cultural value, in spite of the fact that they are seldom seen in 
private or public displays. The brilliant red bracts of CawendisMa, 
the long drooping corollas of certain species of Oeratostema, and 
other floral features of various genera make these plants unforget- 
table to those who have observed them in the mountainous Tropics. 
In the Andes they form one of the outstanding features of the veg- 
etation, and the compact and colorful little shrubs, such as most 
species of the group are, should not be difficult to cultivate in green- 
houses or in our Southern and Pacific States. In Europe these 
plants have found their way into cultivation more readily than in 
North America, and several species were originally described from 
plants introduced by Lobb, Pearee, and other commercial collectors 
of the last century. It is to be hoped that in the near future some 
means will be found of introducing plants of such inherent horti- 
cultural value into the United States. 
Another, but very minor, economic use of the group is as a food. 
Several species, mostly from the Andes of Colombia and Ecuador, 
have fruits that are reported by collectors as edible, but they do 
* Bot Jfthrb. Engler 42: 251-334. 1909. 
316 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
not form a consequential part of the native fare. Many local names 
have been reported, some of which serve to designate any member of 
the group as it has naturally become known to the Indians, while 
others seem to be applied to only a single species. For instance, in 
parts of Colombia the name " uva camarona" is used indiscrim- 
inately, in Ecuador "" hualicon," in Costa Rica " muelas" and 
"colmillos." These names and others reported by collectors are 
mentioned under discussions of species. 
GEOGRAPHIC DISTRIBUTION 
Members of the tribe Thibaudieae are entirely tropical, the Ameri- 
can genera being found from southern Mexico southward to north- 
ern Bolivia and eastward in South America to British Guiana and 
northwestern Brazil. A few species grow in the West Indies. As a 
rule they are found in the higher mountains, at an elevation of 1,000 
meters or more, but several have become established at lower eleva- 
tions. The foothills of the Andes in the upper Amazon Valley, the 
Pacific slope of the Western Cordillera of Colombia, and the sand- 
stone regions east of Mount Roraima in British Guiana are localities 
in which certain species are found at low elevations. Fundamentally, 
however, the tribe may be said to inhabit the Temperate Zone of 
the American Tropics. 
Two Asiatic genera, Agapetes G. Don and Pent apt erygiwm, Kl., 
have been placed in the tribe Thibaudieae by various authors. They 
are quite parallel in structure to the American genera, but this situa- 
tion is more likely due to somewhat parallel evolution than to 
recent common ancestry. In this paper I have ignored the Asiatic 
genera on the assumption that neither of them is so closely related to 
any American genus as the American genera are to each other. 
In America the tribe is represented by 20 genera, of which 6 are 
monotypic, 7 contain from 2 to 6 species, 3 contain from 10 to 20 
species, and 4 contain more than 20 species. The total number of 
species described in this paper is 240, and in addition there are 24 
names that I am unable to place. The fact that approximately one- 
third of the species treated are new must be ascribed to two causes: 
First, that the group has received no critical treatment for more than 
20 years and, second, that the recent interest in South American ex- 
ploration has yielded an amazing quantity of herbarium material. 
The situation that prevails in the tribe Thibaudieae is duplicated in 
any South American group one studies. It is to be anticipated that 
many unknown species are still to be collected, inasmuch as explora- 
tion of the South American Continent, although recently greatly 
accelerated, has left many localities untouched. For instance, it is 
practically certain that undiscovered plants of the tribe await collec- 
SMITH—AMERICAN SPECIES OP THIB AT7DIEAE 317 
tion in the Andes of northwestern Colombia and in the Pacaraima 
Mountains of southern Venezuela, to mention only two of the least 
known and most interesting spots. The total number of species of 
Thibaudieae will probably reach more than 300 as a result of future 
collecting. 
The center of distribution of Thibaudieae appears to be in the 
northern Andes, where species are more numerous and more varied 
than elsewhere. Whether this region was the original home of the 
tribe is a matter of speculation. The Central American species are 
fewer in number than the South American, and only in two cases are 
the same species found in both South and Central America. 
The geographic distribution of each genus is discussed in connec- 
tion with its description. It will be observed that several genera are 
limited to a small area, while others are found throughout the range 
of the tribe. 
MORPHOLOGICAL DISCUSSION 
It is not within the scope of the present treatment of Thibaudieae 
to discuss morphology in any detail. However, a short discussion 
of the structure of plants belonging to the tribe may be of some use. 
All species of this alliance show a great similarity in structure, the 
most extreme variations taking place in the stamens, which conse- 
quently are of most importance in taxonomic consideration. 
In habit, Thibaudieae are spreading shrubs, often epiphytic, or low 
trees. They are inhabitants of the mountainous regions of the 
Tropics, rarely growing in hot lowlands, more habitually in cool 
exposed situations. The stems branch below the soil, or sometimes 
the primary branch is semiprostrate, sending up more or less erect 
shoots. The branches are as a rule stout and gnarled, clothed with 
loose grayish bark. Minor branches are numerous and irregular. 
Often, when the plant is habitually epiphytic, the branches are 
slender and drooping or even subscandent. 
Leaves are usually numerous, variously shaped, entire or sub- 
entire, petiolate, coriaceous or thick-coriaceous, rarely chartaceous, 
pinnate- or pli-nerved, or with several principal nerves spreading 
from the base. The anatomy of the leaf of this whole family has 
been studied in great detail by Niedenzu.23 Stipules are unusual, 
being present, so far as can be observed from material at hand, only 
in Ruabya and some species of Ceratostemcv. 
The inflorescence is axillary, sometimes appearing terminal; the 
flowers are solitary, in pairs, in small fascicles, in racemes, or in 
panicles. Form of inflorescence does not appear constant in con- 
junction with other generic characters, but is generally quite con- 
n
 Bot. Jahrb. Engler 11:134-263. 1890. 
318 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
stant specifically. Frequently bracts of various size are located at 
the base of the inflorescence; these reach their maximum develop- 
ment in Cawendishia, the only group in which they appear to have 
a protective function. Small secondary bracts are found at the bases 
of pedicels, which they subtend. Pedicels are usually bibracteolate, 
and are sometimes surmounted at the articulation with the calyx 
by several minute cartilaginous teeth. Like all flower parts, the 
pedicels may be glabrous or variously pubescent, the degree and type 
of pubescence being as a rule a constant specific character. 
In specific descriptions of Thibaudieae authors have used different 
terms for parts of the calyx, frequently with no clear comprehension 
of its anatomy. The calyx of Ericaceae, which is formed by the 
fused sepals, is inserted on the receptacle below the corolla and ovary. 
Obviously the same structure is present in Vacciniaceae, except that 
the calyx has become fused with the wall of the ovary. That this 
compound structure formed by the fusion of calyx and wall of the 
ovary is not a stem structure is borne out by a study of its anatomy. 
The separation of vascular bundles supplying the stamens, corolla, 
and free portion of the calyx takes place at a level far below the 
apparent attachment of these organs. Therefore, the point where 
the swelling of the calyx becomes perceptible (approximately where 
the first separation of vascular bundles takes place) may be con- 
sidered the apex of the pedicel and the base of the calyx. In the 
majority of species of the tribe this point is marked by a more or 
less conspicuous indentation of tissue, frequently known as the 
articulation, but sometimes the pedicel leads directly into the calyx 
without this. The presence or absence of this indentation has no 
effect on the vascular anatomy, and it appears, therefore, to be a 
purely external character of little phylogenetic significance. 
The parts of the calyx are in this paper designated thus: The por- 
tion that is fused with the wall of the ovary is called the calyx tube; 
the free portion, which is erect or spreading, is the calyx limb; and 
the portions of the limb that are free from one another are the calyx 
lobes. The lobes are triangular, ovate, or lanceolate, often reduced 
to minute apiculate serrations of the limb margin. The tube is 
short-cylindric, campanulate, obcylindric, or obprismatic, frequently 
angled or winged. The ovary, in its fusion with the calyx, has 
become adapted to the shape of that organ; it is fleshy, often thick- 
coriaceous, and often depressed in the center, at which point it gives 
rise to the single style, surrounding which is an annular or cup- 
shaped disk. The locules are as a rule five, thick-walled, and vari- 
ously shaped. The ovules are numerous and minute, spherical or 
ellipsoid, attached to a central parietal placenta. Since these organs 
are constant throughout the tribe, their characters are not repeated 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 319 
in the following descriptions. The symmetrical stigma, which is 
single, is truncate, subhemispherical, or peltate. 
The corolla and stamens are also structurally fused into the com- 
pound wall at their bases, as demonstrated by an examination of 
vascular structure. Practically, however, they may be considered 
to have their inception at the base of the calyx limb. At this point 
they are weakened at maturity and are deciduous, leaving the calyx 
limb and style persistent upon the fruit. The corolla is tubular, 
usually subcylindric, frequently contracted to a long and narrow 
throat, usually carnose, with 5 (sometimes 4 or 6) small lobes, 
invariably some shade of red in color (or sometimes green or white 
when young). The stamens, which as a rule are double the number 
of corolla lobes, have a distinct attachment to the summit of the 
fusion wall, but they are usually more or less adherent to the corolla 
and fall from the mature flower with that organ. The filaments 
are liguliform, carnose or membranous, free or connate in a tube, 
extended distally into slender connectives which are adherent to the 
anther sacs dorsally. The anthers are erect, frequently elongate, two- 
celled, smooth-surfaced or granular, yellow or brown in color, ex- 
tended into one or two submembranous tubules (vestigial in Latero- 
pora) which open by clefts or pores. The stamens show great 
variation and generic constancy; they have been used as critical char- 
acters by taxonomists, and upon them is founded consideration of 
generic history. Pollen is transferred from anthers to stigma by 
insects, or by birds in the case of plants that have the corollas 
greatly elongate. The disk that surmounts the ovary evidently 
secretes a nectar. In some species of Vacoirmwi it has been ascer- 
tained that the plants are self-sterile; in others there is a slight 
dichogamy to insure cross-pollination. So far as I have been able 
to discover, no work along these lines has been done with Thibaudieae, 
but doubtless the same conditions are present. 
The fruit of Thibaudieae is a berry or drupe, never very large but 
frequently used as a food by several primitive tribes. The seeds are 
small, with fleshy endosperm and straight embryo. 
RELATION OF THIBAUDIEAE TO THE FAMILY 
It is the purpose of the present paper to consider species and 
- genera within the tribe Thibaudieae as it is understood by modern 
taxonomists, but a short discussion of the position of the tribe in 
regard to its family may be of some value. By some authors the 
family Vacciniaceae is united with the family Ericaceae, a point of 
view that has much justification. In morphology, anatomy, and 
habit, the two families are doubtless closely allied; whether they are 
considered two families or one is immaterial to the present discus- 
84377—32 2 
320 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
sion. The family Vacciniaceae may be defined as including those 
ericaceous genera that have an inferior ovary. It is divided into two 
• tribes, Thibaudieae and Vaccinieae. 
Bentham and Hooker distinguish the two groups as follows: 
Thibaudieae. Flores magni v. inter majores. Corolla saepissime crasse 
corlacea v. carnosa. Filamenta brevia v. brevlssfina, contigua cohaerentia v. 
connata, rarius discreta. 
Euvaccinieae. Mores parvi v. inter minores. Corolla saepius tenuiter 
coriacea v. membranacea. Filamenta brevia v. elongata, saepissime discreta, 
Drude expresses the relationship thus: 
Blkr. krugformlg, gloekig oder radfGrmig gespalten. Stb. unter einander 
getrennt. Frkn. vom BlUtenstiel scharf abgesetzt und oft abgegliedert. 
Vaccinieae. 
Blkr. aus bauchigem Grunde rub rig oder lang cylindrisch, mit kurz 4-5 
spaltigem Saum, lederlg-fleischig. Stb. getrennt oder zu ciner Silule yerwachsen. 
Keleh am Frkn. herablaufend und in den Bltttenstiel tibergehend (selten 
abgegliedert) 1  Thibaudieae. 
From the above it may be concluded that in the minds of these 
authors no sharp distinction between the tribes is obvious. In fact, 
whatever difference exists is a matter of degree, and any definition 
must admit many exceptions. In general, the above analyses, how- 
ever intangible, are suitable for practical purposes. It may be said 
that the flowers of Thibaudieae as a rule are larger and more carnose, 
and have stamens with shorter filaments than those of Euvaccinieae. 
Of certain Euvaccinieae the ovary is not so strictly inferior as it is 
in Thibaudieae. It is probable that most genera of Thibaudieae are 
further removed from the common ericaceous ancestor than most gen- 
era of Euvaccinieae. However, it is a matter of real doubt whether 
these two tribes are natural, and it is quite conceivable that certain 
genera, such as Vactinium and Thibavdia, are closer in their phy- 
logeny than are Thibaudia and, for example, Satyria. 
In view of this indistinct conception of the two tribes that consti- 
tute the family Vacciniaceae, it may be seen that an accurate sketch 
of generic relationships should await detailed study of all species of 
the family. However, such a project can not be undertaken at pres- 
ent, and the phylogenetic system here proposed is therefore based 
upon a supposition that the two tribes are really distinct. 
From the tribe Thibaudieae certain genera placed there by pre- 
vious writers are here excluded. Among these are Sornemannia, 
which, with its short campanulate corolla, is surely allied to Vac- 
oinium, Sophoclesia, and Sphyrospermum, which seem intermediate 
between the two tribes, but whose alliance, I believe, is really with 
Vaccinieae, and Disterigma, which, as pointed out by Blake,24 is 
very close to Vaccinium. 
M
 Joarn. Washington Acad. Sci. 16:301. 1926. 
SMITH—AMERICAN SPECIES' OF THIBAUDIEAE 321 
GEKERIC GROUPS 
Within the tribe several divergent strains are apparent. There is 
conceivably no predominant morphological form from which other 
groups have separated from time to time, but the primary diver- 
gences seem to have been ancient. The order in which these main 
groups were evolved is, of course, a matter of hypothesis. 
There are two monotypic genera, Lateropora and Notopora, whose 
inception was undoubtedly more ancient than that of the other 
genera here considered, although they have little in common other 
than a vast difference from other groups. 
If we disregard this very minor section of the tribe, and take for 
granted a common source for the other genera, there are apparent 
four strains, of which Siphonandra, Macleania, Thibaudia, and 
Oavendishia may be considered the representative genera. The rela- 
tion of these groups to one another, and of the genera within them, is 
discussed in the following paragraphs. 
LATEROrORA 
This apparently monotypic genus, previously undescribed, has 
been found only on the summit of Chiriqm Volcano, in western 
Panama, a station where it may well have been isolated for a long 
period. Doubtless it represents a very distinct line of evolution, and 
to associate it with any other genus is impossible. All other mem- 
bers of the tribe show elongation of the anther tubules, a character- 
istic that must have been present in a pre-thibaudioid type. The 
remarkable atrophy of the tubules of Lateropora is probably to be 
considered a very early variation from the type, since it is associ- 
ated with unusually densely pubescent filaments and laterally de- 
hiscent sacs, characteristics that must have been developed over a 
very long period of time. In other details of flower structure, leaf 
character, habit, etc., the genus agrees with other members of the 
tribe. 
NOTOPORA 
Like Lateroporathis monotypic genus inhabits a mountain 
range long isolated, having thus far been found only in the vicinity 
of Mount Roraima in western British Guiana. Its outstanding char- 
acteristic is the presence of anther tubules that open by extrorse 
pores, whereas those of all other genera (except Lateropora) open 
introrsely or apical ly. The flowers are tomentose to a degree found 
in no other group of the tribe. The presence of these characters 
indicates an ancient derivation of the genus, which can not be asso- 
ciated with any other modern group in a discussion of descent. 
322 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
/1ACIEAN/A 
firci/tmus. 
OA£ANTH£S. 
fiWCUStA 
SUWQMNm 
COMOCALYX. 
miemm 
cmnmrtA 
Noroto/iA 
iAWMM 
PSArtftWA 
TH/BAU9/A 
S*tf. iitJyyAWM 
MAM/A 
JHf ApiMkiteudiA 
mwsmtm 
fiUSSYA 
cmmmwa 
0*THA£A 
lY$iCt£Si A 
SATY/t/A 
VACC/MAB 
Figubb 143.—Probable phylogeny of Thibaudieae 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 323 
This and the preceding genus are quite separate from all the follow- 
ing, and their presence in the tribe may plausibly be questioned. 
The remaining genera are all closely related, and their derivation 
from a comparatively recent type stock is to be presumed. 
THIBATJDIA AND ITS ALLIES 
A discussion of what may be the most primitive group still extant 
necessarily involves unestablishable hypotheses, since no fossil evi- 
dence is available. There are several large genera extant, from each 
of which small groups have been derived. Of these large genera 
(Macleania, Psammisia, TMbaudia, and CavendisMa), the one that 
seems the " mean " of the tribe, and that it seems reasonable to con- 
sider close to the primitive stock, is Thibavdia. Naturally, this is only 
a theory deduced from study of herbarium and field material, and 
supported by the facts brought out in this monograph. 
* 
THIBAUDIA 
The genus that gives its name to the tribe is characterized by 
cylindric corollas of medium size, stamens always 10 and nearly as 
long as the corollas, usually smooth anther sacs, and broad rather 
flexible tubules, which dehisce by elongate introrse clefts. The 
tubules are typically about as long as or twice as long as the sacs. 
Within the genus a sharp line may be drawn between those species 
with articulate calyces and those with continuous calyces. The value 
of this as a phylogenetic indication has been previously discussed. 
The number of species with continuous calyces is much smaller than 
that of species with articulate calyces. The small group has been 
designated by Hoerold as the subgenus AgathotMbavdia; it is well 
marked, and probably represents the derivative section of the genus, 
since a vast majority of species in the tribe as a whole have articulate 
calyces and this predominant feature may best be considered the 
primitive one. The large group has been mentioned by authors as 
Ewrygama Klotzsch and Neothibaudia Hoer., these two subgenera 
being maintained by Hoerold on the basis of the shape of the disk 
and the integrity or serration of the leaf margins. These characters 
are certainly of no value in the determination of subgenera, since they 
have only a specific and not a phylogenetic bearing. If the group 
that may be designated as Ewrygama, is to be divided at all, the best 
character seems to be whether the filaments are distinct or connate, 
in which point an incipient divergence is perceptible. 
THEMI8TOCLESIA 
Along the same line of divergence observed in Agathothibavdia 
(with the calyx continuous) lies the small genus Themistoclesia. 
324 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
The type species (T. pend/ula) has isomorphic stamens and on the 
basis of its flower structure might well be included in Aga&KotH- 
baudia. But the remaining 5 species of the genus have more or less 
dimorphic stamens, and give rise to the questions whether Themis- 
toclesia is a coherent genus, and whether dimorphism of stamens 
is a character of any phylogenetic value. As to the latter point, my 
conclusion has been that in Cavendishda and its allies dimorphism 
is an important feature (for reasons given below), but that in 
Themistoclesia and Rushy a it is a comparatively recent develop- 
ment, and that these genera have attained their present condition of 
dimorphism or subdimorphism through a thibaudioid line of evolu- 
tion. That the species of Themistoclesia with dimorphic stamens 
and those with isomorphic stamens are congeneric is borne out by 
the two or three intermediate species and by the close agreement of 
all the species in geographic and habital characters. The habit of 
the plants is so characteristic (often epiphytic, with small subcordate 
leaves) that they are here maintained as distinct from Aga/thotM- 
battdia; another reason is to avoid expanding the generic concept of 
Thibaudia to include any plants with dimorphic stamens. So, al- 
though the genus Themistoclesia is somewhat artificial, it is main- 
tained as distinct in this treatment. ' 
ANTHOFTERUS 
The genus Anthopterus was considered by Hoerold a subgenus of 
Thibaudia, but it is so distinct in its winged calyces and corollas 
that there seems no ground for this combination, in view of modern 
conceptions of generic limits. In fact, Anthopterus is one of the 
few genera that any botanist can name by a glance at external struc- 
ture. In its continuous calyx it suggests a descent from a thibaudi- 
oid ancestor along the line of A gathothibmidia, but it seems to have 
been distinct from the original TMbaudia strain longer than the 
previously mentioned group. 
RtTSBTA 
The last genus that may be considered a fairly recent derivative 
of a Thiba/udia stock is Rusbija, a monotypic genus from Bolivia. 
In flower structure this plant resembles Themistoclesia, having a 
continuous calyx and slightly dimorphic thibaudioid stamens. Its 
distinguishing feature is its linear leaves, a character found nowhere 
else in the tribe. Structures that apparently are true stipules are 
present here; they are to be found also in certain species of Cerato- 
stema. Like Anthopterm, this is a genus that may be distinguished 
at a glance. It should be noted that the name is maintained only in 
regard to the type species, R. taxifolia. 
SMITH—AMERICAN" SPECIES OF THIBAUDIEAE 325 
MACLEANIA AND ITS ALLIES 
This group of two large genera and one monotypic genus is closely 
allied to the Thibaudia group. The coherence of these genera and 
their point of divergence from a thibaudioid ancestor are best 
shown in the staminal structure. The anther sacs have become more 
obviously granular-surfaced, and the tubules are reduced in length 
and diameter. From the cylindric, broad, and rather flexible tubule 
of the Thibaudia group has been derived a subconical, narrow, and 
stiffly erect tubule. Concomitantly, the corollas, instead of being 
cylindric, have become as a rule urceolate, much contracted to a 
long narrow throat. The calyces are always articulated with the 
pedicels. 
MACLEANIA 
Macleania is one of the finest examples of a coherent genus from 
which other genera are in process of being derived. M. nitida may 
be taken as typical of the " average" for the genus; it has a cylin- 
dric or campanulate calyx tube, an elongate-urceolate glabrous 
corolla, and stamens with distinct filaments and with two tubules 
laterally connate to the apex. In one trend of evolution the fila- 
ments have become connate and the tubules have tended to fuse, 
resulting in the group of species allied to M. fioribtmda. Concomi- 
tantly, in some species the calyx tube has become winged, the wings 
showing varying stages of development, reaching their maximum in 
M. pentaptera, which, however, is approached by M. cordifolia. In 
some specimens of M. pentaptera, notably those from the Dagua 
Valley of Colombia, the corolla lobes have become spurred. Were 
the intermediate forms (e. g., M. pentaptera, from Ecuador, and 
M. cordifolia) unknown, the Dagua specimens of M. pentaptera 
would constitute a genus in the most satisfactory sense of the word. 
Another trend in the single-tubuled group is evident in M. pubi- 
flora and culminates in salapa, namely, the development of a 
dense floral pubescence, the elongation of calyx lobes, the splitting 
of the filament tube into distinct filaments, and the loss of calyx 
wings. This species (M. salapa) might well be considered generi- 
cally distinct, and is indeed the basis of Tyria Klotzsch. 
On the other hand, from the typical M. nitida we have forms in 
which the tubules are distinct in varying degrees, or even to their 
bases (e. g., some specimens of M. glabra). In some of these speci- 
mens the connective is faintly thickened distally, a condition from 
which it is a slight step to the spurred connective of Psamwmia. 
Here also are found modern species that it is difficult to place (P. 
hookeriana, P. pendulijlora, etc.). 
326 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
It is seen then that in the group known as Macleania are several 
clearly marked trends, resulting in incipient genera, which, if their 
evolution is carried on under ideal conditions, will eventually be- 
come quite distinct. These are typified by M. nitida, M. jlori- 
bv/nda, M. pervtaptera, M. salapa, and the group known as Psam- 
imsia. Whether among present-day species five genera or two or 
one are recognized is purely a matter of personal conception. It is 
here considered that the species so well known as Psammisia merit 
generic recognition, even though the transition from Macleania is 
quite traceable. 
PSAMMISIA 
Psammisia, as has been mentioned, has probably been derived from 
an ancestor resembling such modern species of Macleania as M. 
nitida. The tubules have remained distinct while retaining their 
typical elongate-conical shape, and the connectives, which are formed 
by the distal part of the filaments adhering to the anthers, have de- 
veloped lateral spurs. Sometimes these are present on the alternate 
connectives only, sometimes on all the connectives, and rarely on one 
margin of a connective only. If all the connectives are spurred, there 
is a slight alternate difference in their shape and in the pronounce- 
ment of their spurs. The anthers are crowded into a ring, and a 
function of the spurs may be to hold the connectives closely coherent 
to one another. 
Within the genus, a large part of the species seem to have main- 
tained the primitive condition, with elongate and rather large corol- 
las. A smaller group of about five species has developed short con- 
ical or almost spherical corollas with accompanying stout and short 
anthers. Several apparently unrelated species throughout the genus 
have developed partial fusion of calyx lobes. 
MYCERINUS 
In certain species of Macleania the calyx is winged, but the wings 
(or angles) are opposite the sinuses of the lobes. On Mount Duida, 
in southern Venezuela, is found a species in which the wings are 
opposite the lobes and continued to their apices. The relation of 
this species to the Macleania group is borne out by the stout anthers, 
with short subconical tubules. The tubules are distinct to the base, 
and are dorsally marked with distal elongations of the connective. 
To find such unusual features in a plant from this isolated region 
is not surprising; the species probably represents an early divergence 
from a primitive Macleania stock. 
SMITH—AMERICAN" SPECIES OF THIBATJDIEAE 327 
SIPHONANDBA AND ITS ATrTJES 
In the present group are placed 7 genera with about 30 species. 
As a whole the group is characterized by isomorphic stamens (except 
in some species of Geratostema) and anthers usually much elon- 
gated, with slender tubules opening by very short introrse or apical 
pores. Its point of divergence from a thibaudioid ancestor is prob- 
ably more ancient than that of the Macleania group. Siphonandra^ 
although it is a small genus, is taken as the " mean " of its group 
because of its unmistakable characters and the consequent lack of 
ambiguity when we speak of " siphonandroid " features. 
The 7 genera here mentioned are quite distinct among themselves; 
in fact, the relationships are so remote that their expression in a key 
or in a racial diagram is purely theoretical. This wide divergence 
lends weight to a supposition that these genera represent the ends of 
ancient and not very successful strains. A plausible reason for this 
racial failure may be found in the impractical length of the anther 
tubules and the small pores, which may have made pollen dispersal 
increasingly difficult. It may be pointed out that Cavendishia. Mac- 
lemia;, and other genera of the tribe, which have been successful 
from the viewpoints of geographic extent, number of species, and 
number of individuals, have short tubules and long clefts, permitting 
easy release of pollen. In the case of Ceratostema^ the most success- 
ful genus included in the present group, most species have become 
modified toward this end. 
8IPHONANDRA 
The genus Siphonandra is easily recognized by the above-men- 
tioned characters, the filaments firmly connate in a membranous tube, 
and the 10 anthers dehiscing through long slender tubules opening by 
strictly terminal pores. The trend toward apical pores here reaches 
its climax, and a condition is established that is found again only 
in Lysielesw and some species of Geratostema and Orthaea (where 
it was doubtless derived by distinct and somewhat parallel courses). 
In Siphonandra the calyx is always articulated with the pedicel. 
GERATOSTEMA 
By all authors except Klotzsch the genera Ceratostema and 
Siphonandra have been combined under the former name. Hoerold, 
in his key to genera, separates Ceratostema from Thibaudia on the 
basis of its anther tubules being two to five times as long as the 
sacs and its stamens being exserted, characters that are not constant 
for the genus. Whether Ceratostema is to be considered a derivative 
328 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
of a thibaudioid or a siphonandroid ancestor is a question not easy 
to decide. 
On the one hand, there is in Ceratostema a group of five or six 
species with very slender tubules opening by terminal or subterminal 
pores. These species suggest an unmistakable relationship with 
Siphonandra, from which they differ by their continuous calyces 
with elongate lobes and their distinct filaments (which are strongly 
pilose with retrorse hairs). It is apparently the existence of these 
species that has led students to consider Siphonandra congeneric 
with the remaining species of Ceratostema. 
On the other hand, the 11 or 12 species that form the second group 
of Ceratostema have anthers suggestive of Thibaudia, that is, with 
flexible tubules opening by clefts of more or less indeterminate 
length. They differ from Thibmidia by their elongate calyx lobes, 
their usually ample corollas, their elongate tubules, and the occa- 
sional presence of stamens of two lengths, as well as by occasional 
stipules and by habital differences. In this group are found two 
trends, one in which the calyces are continuous with the pedicels, 
and one in which they are articulate, a difference which, as has been 
previously mentioned, is probably of secondary consequence. The 
relationship of existing species of Ceratostema to one another may be 
expressed in a diagram: 
coronarium 
lanceolatum 
speciosum 
rigid um 
pubiflorum 
parvifolium 
r 
calyx articulate 
with pedicel 
S 
pore terminal or tubules broad, the pore 
oblique; filaments lateral; anthers often 
retrorsely pilose / dimorphic 
\ / 
Ceratostema 
That the above-named species form a coherent genus is indicated 
by the existence of specimens more or less intermediate between the 
first and second groups. C. lobbii has oblique, almost elongate pores; 
C. microphyllwrn, and C. mandoni have very slender tubules and 
clefts, which are short in young anthers. All the species have in 
common elongate calyx lobes and elongate tubules, so that to place 
them in different genera seems unwarranted. 
As to origin, it has been shown that there is evidence for regarding 
Ceratostema as either a siphonandroid or a thibaudioid derivative. 
In either case, it must be concluded that a group of species has been 
considerably modified from the ancestral form. In view of the above 
lobbii buxifolium 
coccineum microphyllum 
grandiflorum graebnerian um 
hirsutum mandoni 
harmsianum spectabile 
Peruvian um ? 
I 
calyx continuous 
with pedicel 
tubules slender, the \ 
SMITH—AMERICA# SPECIES OF THIBATJDH3AE 329 
facts I am inclined to believe the genus more closely related to 
Siphowmdra and its allies than to TMbaudia, but this conclusion 
can not be definitely established. 
EN GLERODOX A 
To the original species {E. cHata Hoer.) two more are added in 
^his treatment, both from the Ecuadorian Andes, where the genus 
se&ms to be endemic. It is characterized by a long angled corolla 
muosh swollen at the base, elongate corolla lobes, and long tubules 
dehiscing by oblique pores. Its alliance to the group of Siphorumdra 
is apparent, but it can not be closely associated with any other genus. 
GONOCALYX 
. Two species of the West Indies (Thibcmdia portoricensis Urb. and 
Vaceinium smilacifoliimi Griseb.) have been placed in Ceratostema 
by Hoerold, but they must certainly be considered generically dis- 
tinct. To these species may be added a third, Gonocafojx pvlcher 
Planch. & Lind., which, although authentically published, has been 
consistently neglected. These three species form a group of generic 
value, agreeing with the preceding in having the filaments distinct 
but contrasting with it in having the corollas cylindric and the 
corolla lobes and anther sacs shorter. 
FBB1CLE61A 
■ 1 ' 
The single species placed in this genus, which is here described as 
new, is quite distinct from all others of the group and is possibly 
less closely related to Siph/mandra than to other genera of this rela- 
It possesses siphonandroid stamens, but in calyx struc- 
?:|m* it i£ more suggestive of certain species of Ceratostema. Its mem- 
Hrahous calyx lobes, reduced in number to four, are also suggestive 
ox Lysidlesia, another previously undescribed genus near Orthaea. 
8EMIRAMISIA 
Semiramisia, with three species, has the largest and most beautiful 
corollas of any genus of the tribe. Its calyx is continuous with the 
pedicel and all its flower parts are much enlarged. To compare it 
with any other genus is difficult, but its source in a siphonandroid 
stock is certain. 
0BEANTHE8 
This monotypic genus is widely divergent from Siphorumdra, 
which nevertheless is probably its closest living ally. It has devel- 
330 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
oped elongate calyx lobes, broadly ovate corolla lobes, a reduction 
of stamens to five, and slightly oblique rather than terminal pores. 
In habit it is slender, with small elliptic leaves. 
CAVENDISHIA AND ITS AT.T.ttmi 
The remaining group of Thibaudieae consists of four genera that 
must have been isolated from the primitive thibaudioid stock for a 
long period, probably longer than any other group except Late/rp- 
pcra and Notopora. Also they have been long separated from jOtye 
another, as brought out by the clear-cut generic characters and the 
lack of dubiously placed species. All the genera associated here have 
stamens of two lengths, usually quite distinctly so. In considering 
this character one of primitive importance perhaps too much em- 
phasis is placed upon it, but this hypothesis is supported by second- 
ary characters, such as the development of large bracts in Owvenr 
diehia and wide rigid tubules in the anthers of Satyria. 
Within the group the genera are very distinct. Perhaps the 
most isolated is Satyria, in which the filaments are strictly connate, 
the anthers rigid and crowded, with narrow sacs and flaring tubules. 
To place this well-marked genus in the Omendishda group is per- 
haps inadvisable; it may have been isolated from the thibaudioid 
strain even longer, and may have developed its dimorphic anthers 
independently. Cmendishia^ the largest genus of the tribe, has 
flowers very similar to those of TMbaudia, especially in species in 
which the dimorphism is not pronounced. In a great majority of the 
species large bracts are present, surrounding the short young ra- 
cemes, but the loss of these is not a mark of generic value and seems 
to have occurred here and there throughout the genus. The two 
remaining genera, Orthaea and Lysiclesia, have developed very short 
stamens, with unequal filaments and subequal anthers. The latter 
genus has, in place of the usual calyx lobes, three large membranous 
bracts. Possibly its phylogerietic history is too closely coupled with 
that of Orthaea in this treatment. 
CAVENDISHIA 
As above mentioned, this genus is superficially marked by the 
usual presence of large imbricate bracts, the development of which 
may be associable with the success of the genus. The stamens are 
frequently subequal, but invariably the filaments and anthers are 
compensatingly unequal. In shape of anther sacs and tubules the 
stamens are identical with those of most species of Thibavdia, a fact 
which led most of the earlier authors to describe the species under 
that genus, overlooking the dimorphic character. Possibly the 
SMITH—AMERICAN SPECIES OF THIBAUDEBAE 331', 
phylogenetic divergence of CavendisMa is more recent than I have 
indicated here. 
OBTHAEA 
This comparatively small genus has stamens much shorter than 
those of Cavendishia, with anthers subequal and filaments invariably 
unequal and practically free. The mode of dehiscence varies, ter- 
minal pores being present in some of the species. Large bracts are 
not present except in one or two species, in which they are distinctly 
cavendishioid, suggesting such a recent divergence as is here 
indicated. 
LYS1CLESIA 
This genus of two species of apparently small range is here first 
described. The corollas and stamens are precisely like those of 
Orthaea, but a most unusual development of the calyx limb has 
taken place, the lobes being reduced in number to three and enlarged 
to membranous bractlike structures. Whether this development is 
more recent than the staminal structure, or whether it is ancient 
and the stamens have reached an orthaeoid condition independently, 
is an open question, 
SATYBIA 
SatyHa is a very coherent genus of wide range. The filaments 
are always strictly connate, forming a tube on the margin of which 
the anthers are set at close intervals. The anthers are closely ap- 
pressed to one another, the sacs leading into the tubules impercep- 
tibly, the tubules themselves broader than the sacs and sometimes 
flaring. Although the filaments are necessarily equal, the anthers 
are alternately strictly unequal. 
DESCRIPTIVE LIST, WITH XETS 
KET TO AMEBIOAN GENERA 
Anthers terminating in vestigial tubules, the tubules functionless, not exceeding 
0.5 mm. in length, the anthers dehiscing by lateral clefts. 
1. LATEROFORA (p. 833). 
Anthers terminating in tubules, dehiscing by pores or clefts in the tubules. 
Tubules opening by ertrorse clefts 2. NOTOFOBA (p. 834). 
Tubules opening by introrse clefts or terminal pores. 
Stamens approximately isomorphlc, with filaments and anthers all the 
same length (slightly dimorphic in genera nos. 3, 15, and 16, alter- 
nately spurred In genus no. 12). 
Tubules rigid, long, slender, about half as much In diameter as the 
anther sacs, opening by terminal or oblique pores (pores seldom 
more than one-tenth the length of tubules, except In some species 
of genus no. 3). 
f 
CONTRIBUTIONS FROM THE NA" ^EBARIUM 
Stamens twice as many as calyx 
< Jalyx continuous with the ped: 
Lobes of calyx elongate-triangular, more than 2 mm. long; fila- 
ments often densely tomentose with retrorse hairs. 
3. CEBATOSTEMA (p. 335). 
Lobes of calyx broadly triangular or apiculate, not more than 
1.5 mm. long; filaments glabrous or minutely puberulous. 
Tubules 3 or 4 times as long as anther sacs; corolla ample, cylln- 
dric-campanulate, the lobes triangular, as broad as long, 
4. SEMIRAMISIA (p. 848). 
Tubules slightly longer than anther sacs; corolla cylindric or 
prismatic, the lobes lanceolate, twice as long as broad. 
5. ENGLERODOXA (p. 350). 
Calyx articulate with the pedicel. 
Filaments distinct (sometimes slightly coherent at base). 
Corolla swollen at base, deeply cleft, the lobes lanceolate, at 
least one-fifth the total length; anther sacs elongate, 5.5 to 
16 mm. long 5, ENGLEBODOXA (p. 350). 
Corolla tubular-cylindric, shallowly cleft; anther sacs short, 2 to 
4 mm. long 6. GONOCALYX (p. 352). 
Filaments connate for nearly their entire length. 
Calyx lobes 5, small, not more than 2 mm. long; tubules opening 
by strictly terminal pores 7. SIPHONANDRA (p. 355). 
Calyx lobes 4, large, 20 to 25 mm. long; tubules opening by ob- 
lique pores 8. PERICLESIA (p. 357). 
Stamens the same number as calyx lobes (5). 
8. OREANTHES (p. 358). 
Tubules wide, not much narrower than anther sacs, opening by elongate 
pores or lateral clefts (openings usually one-third the length of 
tubules or more, slightly shorter In genus no. 15). 
Anther sacs very granular; tubules elongate-conical, rigid. 
Calyx winged, each wing continuing to the apex of a lobe; connective 
divided, sending a branch up each tubule dorsally to its sum- 
mit 10. HYCERXNTTS (p. 359). 
Calyx cylindric or angled or winged (In which case the wings are 
opposite the sinuses); connective terminating at base of tubules. 
Connectives unspurred; tubules united or distinct and often later- 
ally connate (sometimes distinct to their bases). 
11. MACLEANIA (p. 300). 
Connectives alternately 2-spurred (sometimes all spurred) ; tubules 
distinct to their bases 12. PSAMMISIA (p. 384). 
Anther sacs smooth or slightly granular; tubules cylindric, flexible. 
Leaves variously shaped, several-nerved; stipules lacking (some- 
times present in genus no. 3). 
Calyx lobes short-triangular; corolla narrowly cylindric; tubules 
less than twice as long as the sacs (rarely longer). 
Corolla winged, the wings obvious, corresponding to the lobes, 
membranous, with a vein running parallel to the outer mar- 
gin 13. ANTHOFTEBUS (p. 406). 
Corolla cylindric or slightly angled. 
Calyx articulate with pedicel 14. THIBATJDIA (p. 410). 
Calyx continuous with pedicel. 
1 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 333 
Stamens all the same length; leaves large, variously shaped, 
usually cuneate at base. 
14. THIBAUDIA, sect. Agathothibaudia (p. 410). 
Stamens usually of two lengths (in some species apparently 
isomorphic); leaves small, subcordate or truncate at 
base 15. THEMISTOCLESIA (p. 439). 
Calyx lobes lanceolate-triangular; corolla ample; tubules 3 to 5 
times as long as the sacs 3. CERATOSTEMA (p. 335). 
Leaves lanceolate, 1-nerved, about 10 times as long as broad; stipules 
present 16. RTXSBYA (p. 445). 
Stamens obviously of two lengths, the filaments or anthers or both alter- 
nately unequal. 
Filaments unequal, distinct, or coherent in lower portion only. 
Anthers unequal (rarely subequal) ; stamens nearly as long as corolla 
(at least half as long); large bracts usually present (but completely 
lacking in some species) 17. CAVENDISHXA (p. 446). 
Anthers equal; stamens about one-third as long as corolla; bracts 
rarely large. 
Calyx with 5 short triangular lobes 18. ORTHAEA (p. 509). 
Calyx with 3 lanceolate-ovate lobes, the lobes bractlike, 25 mm. long 
or more 19. LYSICLESIA (p. 517). 
Filaments equal, connate for their entire length. 
20. SATYBIA (p. 519). 
1. LATEROPORA A. C. Smith, gen. no v. 
Calyx cum pedicello articulatus, tubo campanulato, limbo erecto-patente 5- 
lobato. Corolla late cylindrica 5-lobata. Stamina 10 quam corolla leviter bre- 
viora, filamentis distinctis sicut connectivis dense tomentosis, antheris robustls 
basi protrusis rimis latis lateralibus dehlscentibus, tubulls rudimentariis. Arbor 
parva (vel frutex epiphyticus?), laminis coriaceis alternis breviter petiolatis 
pinnatlnerviis. Flores in racemis brevibus paucifloris subterminalibus dispositi. 
Calyx articulate with pedicel, the tube campanulate, the limb coriaceous, 
erecto-patent, 5-lobed, the lobes triangular; corolla coriaceous, broadly cylindric, 
5-lobed, the lobes triangular, acute, pubescent within; stamens 10, slightly 
shorter than corolla; filaments coriaceous-carnose, distinct, attached to the 
anther dorsally a little below the middle; connective continuous with filament, 
densely tomentose, as also the upper part of the filament; anthers stout, oblong, 
granular, strongly curved, the lower one-third protruding horizontally ventrally, 
the tubules vestigial, the sacs dehiscing by broad lateral clefts extending from 
the apex at least as far as the angle (two-thirds of the anther length), prob- 
ably the entire length with age; disk shal lowly cup-shaped; ovary 5-locular; 
style stout, filiform, the stigma truncate. 
Small tree (or possibly epiphytic shrub) ; leaves alternate, short-petioled, 
pinnate veined; flowers in short few-flowered subterminal racemes, pedicellate* 
the pedicels short, with 2 to 4 ovate bractlets near base. 
Distribution : Known from a single species from Chirlqul Volcano in west' 
era Panama. 
This is a remarkable and unmistakable genus, clearly marked from all others 
of the family by its laterally dehiscing anthers. 
334 CONTRIBUTIONS PBOM THE NATIONAL HERBARIUM 
1. Lateropora ovata A. C. Smith, sp. nov. 
Arbor parva (vel frutex epiphy ticus ?) generis character Ibus; lamlnls ovatis 
basi attenuatis apice subacutis vel subobtusis pinnatinerviis; floribus ut supra 
descrlptis. 
Small tree (or possibly epiphytic shrub) ; branches and branchlets sub terete, 
glabrous, striate, the bark of the branches grayish, of the branchlets brown; 
petioles thick (2 mm. in diameter), glabrous, about 6 mm. long; leaf blades 
firm, coriaceous, ovate, 7 to 10 cm. long, 4 to 6 (rarely to 8.5) cm. broad, 
glabrous, attenuate at base, decurrent on the petiole, subacute or subobtuse 
at apex, entire and narrowly revolute at margins, pinnate-veined, the secondary 
veins arcuate-ascending, 3 to 5 to a side, often oriented near base, the mldveln 
and secondary veins plane or slightly Impressed above, prominent beneath, the 
veinlets copiously reticulate, slightly raised on both surfaces; racemes terminal, 
the rachis stout (2.5 mm. in diameter), short (12 to 16 mm. long), bracteate 
at base, the bracts 4 to 6, broadly ovate, 4 to 5 mm. long and broad; pedicels 
stout (about 2 mm. in diameter), about 10 mm. long, bracteolate near base 
(bractlets 2 to 4, oblong-ovate, subacute or obtuse, 5 mm. long, 3 mm. broad), 
articulate with calyx; calyx tube campanulate, about 4 mm. long and 4 mm. in 
diameter at an thesis; limb about 5 mm. long including lobes, glabrous without, 
faintly pilose within distally, the lobes erect, triangular, subacute, 3 ram. long, 
5 mm. broad, the sinuses acute; corolla broadly cylindric-globose, about 8 mm. 
long, 7 to 8 mm. in diameter at middle, reduced at both ends, sparsely pubes- 
cent without at middle with scattered brown hairs about 0.6 mm. long, the 
lobes suberect, triangular, acute, 3 mm. long, 4.5 to 5 mm. broad at base, 
densely pubescent within with crowded white-tomentose hairs 0.5 to 0.7 mm. 
long; stamens 6 mm. long; filaments fleshy, pale yellow-pink, about 4 mm. 
long, 1.6 mm. broad across base, gradually reduced to 0.6 mm. at point of 
attachment, the basal one-third glabrous, the upper part densely tomentose 
(especially at the margins and dorsally, the ventral hairs fewer and shorter) 
with pale silky hairs up to 1 mm. long to which are often attached numerous 
minute brownish nodules (glands?) 0.05 mm. in diameter; connective re- 
sembling the filament, extending to about 1 mm. from the apex of the anther; 
anthers very granular, stout (about 2 mm. in diameter), 5 mm. long vertically, 
the base protruding horizontally about 2 mm.; tubules submembranous, vesti- 
gial on the summit of each anther sac, 0.3 to 0,5 mm, long; style about 7 mm. 
long. 
Type in the U. S. National Herbarium, no. 677,631, collected in humid forest, 
at summit of Cerro de la Horqueta, ChiriquI, Panama, altitude 2,268 meters, 
March 18, 1911, by H. Pittier (no, 3234). 
Distribution : Known only from the type collection. 
The collector's notes read: "A small tree, unless epiphytic; flowers greenish 
white." It is a unique and well-marked plant, as noted in the generic 
discussion. 
Explanation of Platb 1.—Lateropora ovata, from photograph of type sheet. About 
one-half natural size. 
2. NOTOPORA Hook. f. Icon. PI. 12:53. pi. 115$. 1876 
Calyx tube obscurely articulate with pedicel, campanulate or cylindrlc; limb 
erect, 5-lobed; corolla subcylindric, 5-lobed, the lobes triangular, subacute; 
stamens 10, equal, nearly as long as corolla; filaments membranous, elongate, 
adherent to corolla for about half its length, attached to the anther dorsally 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 335 
at base of tubules; anther sacs granular; tubules slightly shorter than sacs, 
opening by wide extrorse clefts; style about as long as corolla. 
Low, slender shrubs with coriaceous pinnate-veined petioled leaves; flowers 
axillary, solitary or In pairs, pedicelled, densely brown-tomentose on all exterior 
surfaces. 
Distribution : Known only from the following species, which is apparently 
endemic to Mount Roraima, British Guiana. 
This monotypic genus is clearly set off from all other Thlbaudieae. The 
dorsally cleft tubules are unique, and the densely ferruginous-tomentose calyces 
and corollas are not duplicated elsewhere in the family. It is probably an 
ancient genus, which has long been isolated in the mountainous region of the 
Brazil-Guiana border. According to the original description and illustration, 
the filaments are very short and attached high up on the corolla. However, 
dissection establishes the fact that they are unusually long, being firmly 
adherent to the corolla for nearly half its length. 
1. Notopora schomburgkii Hook. f. Icon. PI. 12:53. pi. 1159. 1876. 
Low shrub; branchlets terete, slender, glabrous, cinereous; petioles subterete, 
rugose, glabrous, 6 to 8 mm. long; leaf blades thick-coriaceous, ovate, 5 to 7 cm. 
long, 2.5 to 3.5 cm. broad, acute at base, subacute or short acuminate at apex, 
entire and slightly thickened at margins, glabrous and lustrous above, when 
young densely tomentose beneath with short brown hairs, becoming glabrous, 
pinnate-veined, the midvein slightly impressed above, raised beneath, the sec- 
ondary veins 3 or 4 to a side, spreading, plane on both surfaces, the veinlets 
reticulate, plane; flowers solitary or in pairs, axillary, densely brown-tomentose 
on all exterior surfaces with hairs up to 1 mm. long; pedicels subterete, 2 to 5 
mm. long, obscurely blbracteolate, obscurely articulate with calyx; calyx 
(including tube and limb) about 10 mm. long and 7 mm. in diameter at summit, 
the lobes triangular, subacute, about 1.5 mm. long; corolla 10 to 16 mm, long, 
about 6 mm. in diameter; filaments slender, dark castaneous, closely adherent to 
corolla and appearing fused with it, about 7 mm. long, attached to anthers dor- 
sally at bases of tubules; anther sacs strongly granular, about 3 mm. long; 
tubules wide, short-cyllndrlc, distinct, about 2 mm. long, opening by wide 
extrorse clefts about as long; style filiform. 
Type locality : British Guiana (doubtless vicinity of Mount Roralma). 
Type collected by Schomburgk (no. 566 [867]). 
Distbibijtion : Vicinity of Mount Roralma, British Guiana and northern 
Brazil. 
British Guiana: Schomburgk 566 (867; K, type), 867 (B). "Our House," 
Mount Roralma, im Thurn 100 (N). 
Brazil. 
Amazokas: Rio Cuquenam, near Mount Roraima, Vic 8669 (Go). 
The title of the page on which the original description appears Is " Notopora 
Scbomburgkiana." However, the specific name " xchomburgkii" is applied to 
the actual description and also to the illustration; and since the type specimen 
was actually collected by Schomburgk, this form of the name may be preferred. 
3. CERATOSTEMA Juss. Gen. Pi. 163. 1789 
Calyx tube continuous or articulate with pedicel, obconical or campanulate; 
limb suberect, 5 (rarely 6) lobed, the lobes elongate-triangular or triangular, 
usually distinctly veined; corolla subcylindric, ample, glabrous or pilose. 
5 (rarely 6) lobed, the lobes triangular or elongate-triangular; stamens 10, 
equal or alternately slightly unequal, nearly as long as corolla or slightly 
84377—32 3 
336 CONTRIBUTION'S FROM THE NATIONAL HERBARIUM 
exserted; filaments distinct, equal or alternately slightly unequal, attached to 
the anther dorsally near its base, often retrorsely pilose; anthers submem- 
branous, the sacs slightly granular or nearly smooth, the tubules 3 to 5 times 
longer than the sacs (sometimes twice as long), opening by terminal pores or 
narrow elongate introrse clefts; style filiform, as long as corolla or slightly 
exserted. 
Compact usually epiphytic shrubs with small, coriaceous, alternate, ob- 
scurely nerved, petioled leaves; inflorescence axillary; flowers solitary or in 
fascicles of 2 or 3, pedicelled, the pedicels deciduously hibracteolate. 
Distkibution : Andes from Colombia to Bolivia, usually at high elevations. 
Sixteen species are described in this treatment and In addition there are five 
names which I am unable to place. 
As mentioned in the discussion of generic relationships, this group is of 
doubtful ancestry but is easily recognized by its large calyx lobes. 0. peru* 
vianum Gmel. is the type species. 
KEY TO THE SPECIES 
Calyx continuous with pedicel (Peru and Bolivia). 
Filaments densely tomentose dorsally with retrorse hairs; tubules opening 
by terminal or oblique pores (by short clefts In no. 1). 
Calyx lobes ovate-lanceolate, 7 to 10 mm. long. 
Corolla about 2 cm. long; tubules about twice as long as anther sacs, 
opening by short clefts 1. C. lobbii. 
Corolla 4 to 5 cm. long; tubules 3 or 4 times as long as anther sacs, open- 
ing by terminal pores 2, C, coccineum. 
Calyx lobes ovate-deltoid, 3 to 6 mm. long. 
Corolla up to 4 cm. long (rarely 2 to 2.5 cm. long) ; tubules 3 or 4 times 
as long as sacs. 
Leaves 1.5 to 4 cm. long; base of anthers obtuse— 3. C. grandiflorum. 
Leaves 3.5 to 5.5 cm. long; base of anthers produced into an acute 
tip 4, c. hirsutum. 
Corolla 2 cm. long or less; tubules less than twice as long as sacs. 
5. C. h&rmsianum. 
Filaments pilose with spreading hairs; tubules opening by lateral clefts. 
Corolla glabrous. 
Pedicels longer than flowers (corolla about 10 mm, long). 
6. C. buxifolium. 
Pedicels shorter than flowers (corolla 18 to 30 mm. long). 
Leaves usually shorter than pedicels (leaves 8 to 15 mm. long, rarely 
more)—  7. 0. tnicrophyllurn. 
Leaves usually longer than pedicels (leaves about 15 to 25 mm. long). 
8. C. graebuerianum. 
Corolla pilose, the hairs usually dense, pale, about 0.2 mm, long. 
Flowers slender; corolla 20 to 30 mm. long 9. C. mandoni. 
Flowers ample; corolla 35 to 50 ram. long 10. C. spectabile. 
Calyx articulate with pedicel (Colombia and Ecuador). 
Flowers small (corolla about 10 mm. long, slightly longer than pedicels) ; 
leaves 12 to 15 mm. long  11. C. coronarium. 
Flowers larger (corolla 15 to 30 mm. long, about 3 times as long as pedicels) ; 
leaves rarely less than 15 mm. long. 
Leaves lanceolate, attenuate at base 12. C. lanceolatum. 
"J*' r 
SMITH—AMERICAN SPECIES OF THIBAXTDTTlAUt 337 
Leaves oblong or ovate, truncate or snbcordate at base. 
Leaves 6 to 10 cm. long  13. C. speciosum. 
Leaves up to 4 cm. long. 
Corolla glabrous, 25 to 32 mm. long at maturity 14. C. rigidum. 
Corolla pilose (hairs ptde, stout 0.3 mm. long), 15 to 25 mm. long at 
maturity. 
Calyx lobes lanceolate, 6 to 9 mm. long   15. C. pubiflorum. 
Calyx lobes ovate-deltoid, 2 to 3 mm. long 16. C. parvifolium. 
1. Ceratostema lobbii A. C. Smith, sp. nov. 
Frutex; rainulis decidue puberulis; laminis ovato-oblongis basi subcordatis 
apice obtusis utrinque decldue brevlter pilosls obscure 5-pll-nerviis; floribus 
extus pilosis axillaribus solitariis vel in fasciculis purvis; calyce cum pedl- 
cello con tin uo campanulato vel obprismatico, limbo suberecto 5-lobato, lobis 
ovatis; corolla ten niter carnosa cylindrica, lobis lanceolatls; staminlbus aequa- 
Iibus, fllamentis distinctis extus retrorse pilosls, tubulis longis gracilibus quam 
loculis duplo longioribus. 
Shrub; branchlets terete, brownish, deciduously puberulous with pale hairs 
up to 0.3 mm. long; stipules frequently present, arlstate, 2 to 3 mm. long; peti- 
oles subterete, sparsely pilose, 1 to 2 mm. long; leaf blades ovate-oblong, 3.5 
to 4.5 cm. long, 1.2 to 2 cm. broad, th in-coriaceous, snbcordate at base, obtuse 
at apex, entire at margins, glabrous or deciduously short-pilose (hairs up to 
0.5 mm. long) on both surfaces, obscurely 5-pIi-nerved, the midnerve plane or 
slightly impressed above, raised beneath, the secondary nerves obscure above, 
slightly raised beneath, the velnlets obscurely reticulate; flowers axillary, soli- 
tary or in fascicles of 2 or 3, pilose on all external surfaces with pale spread- 
ing hairs up to 0.5 mm. long; pedicels slender, 5 to 12 mm. long, circum- 
scribed at base by several lanceolate bractlets 2 to 3 mm. long, continuous 
with calyx; calyx tube campanulate or obprismatic, 2 mm. long and 3 mm. 
in diameter at anthesis; limb 9 to 10 mm. long including lobes, the lobes ovate, 
acute, several-veined, membranous, about 9 mm. long, 4 to 5 mm. broad; corolla 
thin-camose, cylindric, 20 to 22 mm. long; about 5 mm. in diameter, the lobes 
lanceolate, sometimes spreading, 4 to 6 mm. long, 1.5 to 2 mm. across; stamens 
equal, about 21 mm. long; filaments about 2 mm. long, densely pubescent with 
stiff, matted, pale brown retrorse hairs about 0.5 mm. long, continued into 
slender connectives; anther sacs nearly smooth, narrowed at base, about 7 
mm. long; tubules erect, slender, about 14 mm. long, opening by introrse oval 
clefts less than 1 mm. long; style about as long as corolla, the stigma truncate. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected in 
"Columbia" (probably in Peru) by W. Lobb (no. 252). 
DISTRIBUTION: Doubtful; known only from the type collection. 
Although the specimen here described is labeled " Columbia," it is so closely 
related to the following Peruvian species that I am certain it also is native in 
the Peruvian Andes. Many of Lobb's specimens bear this erroneous inscrip- 
tion. The present species and the four following form a very distinct group 
of Ceratostema, as mentioned in the discussion of generic relationships at 
the beginning of this paper, characterized by very slender tubules with small 
pores, and by retrorsely tomentose filaments. From its allies, O. lobbii is dis- 
tinguished by its long calyx lobes, short corollas, and comparatively short 
tubules opening by short clefts. 
Explanation or Flats 2.-^Ceratottema lo&Wi, from photogtaph of type gbeet. About 
one-half natural size. 
t 
338 CONTRIBUTION'S FROM THE NATIONAL HERBARIUM 
2. Ceratostema coccineum Hoer. Bot. Jahrb. Engler 42 : 317. 1909. 
Shrub about 1 meter high, often epiphytic; branch lets subterete and glabrous 
when old, when young grooved and loosely pilose; petioles stout (1 mm. in 
diameter), about 2.5 mm. long, sparsely pilose or glabrescent; leaf blades thick- 
coriaceous, oblong or ovate-oblong, 3 to 4 cm. long, 1 to 1.5 cm. broad, rounded 
at base, obtuse or subacute at apex, entire, slightly thickened, and somewhat 
revolute at margins, glabrous or sparsely short-pilose on both surfaces, some- 
times sparsely punctate, pinnate-veined, the mid vein impressed above, prom- 
inent beneath, the secondary veins plane, obscure, 2 to 4 to a side, oriented near 
base; flowers axillary, solitary or in fascicles of 2 or 3; pedicels stout (about 
1.3 mm. in diameter), 10 to 23 mm. long, rugose, pubescent with pale spreading 
hairs about 0.25 mm. long, circumscribed at base by several ovate cillate-mar- 
gined bractlets about 2 mm. long, continuous with calyx; calyx tube obconlcal, 
4 to 7 mm. long, about 5 mm. in diameter at summit, pubescent as the pedicel; 
limb subcoriaceous, suberect, 8 to 12 mm. long, sparsely pilose, the lobes lance* 
olate triangular, acute, 7 to 10 mm. long, 3 to 4 mm. across base; corolla 
carnose, glabrous, or sparsely pilose (hairs pale, about 0.2 mm. long), cylindric, 
subinflated, 40 to 50 mm. long when mature, about 8 mm. in diameter, the lobes 
triangular, acute, 3 to 5 mm. long and 4 mm. across base; stamens isomorphic, 
about 45 mm. long; filaments about 0 mm. long, 0.5 mm. wide, densely pubescent 
dorsally with fuscous straight oppressed retrorse hairs about 0.4 mm. long, at- 
tached to the anther dorsally near its base; anther sacs nearly smooth, 8 to 11 
mm. long, produced at base; tubules erect, slender (0.4 to 0.5 mm. in diameter), 
about 35 mm. long, flaring at apex and opening by apical pores, the pores 0.5 
mm. in diameter, sometimes luce rated at margin; style slightly exserted, about 
0.0 mm. in diameter. 
Type locality: East of Palca, Department of Junta, Peru, altitude 3,400 to 
3,600 meters. Type collected by Wcberbauer (no. 2505). 
Distribution : Andes of central Peru, altitude 2,300 to 4,000 meters. 
Peki*. 
HuAncco: Huunuco, Macbride <t Featherstone 2163 (F, N). Cant, Mac- 
bride 3544 (F). Tain bo de Vaca, Macbride 4376 (F). 
JunIn: East of Palca, Weberbauer 2505 (B, type). 
This is a species with beautiful large flowers, distinguishable from the pre- 
ceding on the characters mentioned in the key. Anthers of the type specimen 
do not show the tubules, which are described by Hoerold as " poro elongato vel 
rima parva dehiscentes." However, this is doubtful, since in all other characters 
the type agrees with other collections here cited. 
3. Ceratostema grandiflorum It & P. Fl. Pcruv. Chil. 4: pi, 383. 1802, 
Ceratostema iongiflorum Llndl.; Lem. Fl. Serr. Jard. I. 4 : 346b. pi. 353. 
1848. 
Ceratostema urban ianvm Hoer. Bot. Jahrb. Engler 42 : 319. 1909. 
Low shrub; branchlets subterete, cinereous, glabrous or minutely puberulous; 
stipules sometimes present, a r 1st ate, about 3 mm. long; petioles subterete, 
deciduously pilose, 1 to 2 mm. long; leaf blades ovate or ovate-oblong, 1.5 
to 3 cm. long, 0.7 to 1.2 cm. broad, rigidly coriaceous, subcordate or rounded 
at base, subacute or obtuse at apex, entire at margins, glabrous or deciduously 
short white-pilose, obscurely 3 to 5 nerved from base, the midnerve slightly 
impressed above, raised beneath, the secondary nerves obscure; flowers axillary, 
solitary or in fascicles of 2 or S, frequently short-pilose (hairs about 0.3 mm. 
long) on all external surfaces, becoming glabrous; pedicels slender, 5 to 15 
mm. longt circumscribed at base by several oblong pilose bracts about 2 mm. 
long, continuous with calyx; calyx tube broadly campanulate or obconical, 
SMITH—AMEBICAN SPECIES OF THIBAUDIEAE 339 
rugose, 2 to 3 mm. long, 4 to 5 mm. in diameter at anthesls; limb erecto-patent, 
5 to 7 mm. long including lobes, the lobes 5 or 6, triangular-ovate, acute, 4 to 6 
mm. long, 3 to 4 mm. broad-; corolla thin-carnose, cylindrlc, 2 to 4 cm. long, about 
6 mm. in diameter, 5 or 6 lobed, the lobes triangular, about 1.5 mm. long; 
stamens equal, 20 to 30 mm. long; filaments about 3 mm. long, densely 
pubescent with matted retrorse hairs about 0.5 mm. long, continued into slender 
connectives; anther sacs nearly smooth, 5 to 6 mm. long; tubules slender, 
erect, 12 to 25 mm. long, opening by apical or slightly oblique pores; style 
frequently exserted, the stigma truncate. 
Type locality: Andes of central Peru, Type collected by Ruiz and Pavon 
(or by Dombey?). 
Distribution : Andes of central Peru, altitude 2,800 to 3,700 meters. 
PxBtr; Huasa-Huasi, Dombey (B, type collection?). "Jameson" (K). "Co- 
lumbia," LoU 3 (K). 
HuAnuoo: Mufia, Pearce, in May, 1863 (K). Mito, Macbride 3361 (F). 
JunIn: Huacapistana, Weberbauer 2202 (B, type of C. urbanianum). 
Among the above specimens there is some variation in the degree of floral 
pubescence, a character which in this case seems to be dependent upon maturity. 
The Lobb specimen is probably erroneously labeled, and the Jameson speci- 
men, which must have come from Peru, may not have been his own collection. 
4. Ceratostema hirsutum K. & P. Fl, Peruv. ChlL 4: pi. 383. 1802. 
Ceratostema cordifolium Dun.; DC. Prodr. 7:553. 1839. 
Thibaudia hirsuta R. & P.; DC. Prodr. 7:553. 1839, as synonym. 
Slender shrub; branchlets terete, cinereous, glabrous; stipules usually pres- 
ent, about 3 mm. long; petioles rugose, 2 to 4 mm. long, nigrescent, glabrous; 
leaf blades oblong or ovate-oblong, 4 to 5.5 cm. long, 1.5 to 2.5 cm. broad, 
coriaceous, subcordate at base, acute at apex, entire and slightly revolute 
at margins, glabrous on both surfaces or sparsely brown-pilose beneath, ob- 
scurely 5 to 7 pli-nerved, the midnerve slightly impressed above, raised 
beneath, the secondary nerves oriented near base, ascending, plane or slightly 
raised beneath; flowers axillary, solitary or In pairs; pedicels 8 to 12 mm. 
long, slender, pilose with pale spreading hairs up to 0.2 mm. long, circum- 
scribed at base by several oblong acute fimbriate bractlets 2 to 3 mm. long, 
continuous with calyx; calyx tube subrugose, campanulate or broadly obconi- 
cal, 2 to 2.5 mm. long, 3 to 4 mm. in diameter at anthesls; limb suberect, pilose 
or glabrescent, 4 to 4.5 mm. long including lobes, the lobes ovate, short- 
acuminate, about 4 mm. long and 3 mm. broad; corolla thin-carnose, sub- 
cylindric, glabrous, up to 35 mm. long, 5 mm. in diameter; stamens equal, 
about 30 mm. long; filaments 2 to 3 mm. long, densely pubescent with matted 
retrorse hairs about 0.5 mm. long, continued Into slender connectives; anther 
sacs nearly smooth, about 6 mm. long; tubules elender, erect, about four times 
longer than the sacs, opening by apical or slightly oblique pores; style as 
long as corolla, the stigma truncate. ' 
Ttpd locality: Near Mnfia, Department of Hu&nuco, Peru. Type collected 
by Ruiz and Pavon {?). 
Distribution : Known only from the type locality, altitude about 3,700 
meters. 
Peru. 
HuAnuco : Muffa, Pearce, in June, 1863 (K). 
This species is very close to the last, but differs slightly in leaf shape, which 
character, combined with the acute anther sacs, seems of specific value. 
340 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
5. Ceratostemft harmsiamim Hoer. Bot. Jahrb. Engler 42:317. 1909. 
Low shrub; branchlets subterete, swollen at the bases of petioles, cinerous, 
essentially glabrous; stipules aristate, about 2 mm. long, deciduous; petioles 
rugose, glabrous, subnigrescent, 2 to 3 mm. long; leaf blades ovate-oblong, 12 
to 17 mm. long, 6 to 8 mm. broad, rigidly coriaceous, rounded or broadly cuneate 
at base, obtuse or subacute at apex, entire or sballowly crenate at margins, 
glabrous, obscurely 3 to 5 pli-nerved, the midnerve slightly impressed above, 
raised beneath, the secondary nerves obscure; flowers axillary, solitary or in 
pairs, short-pilose on all external surfaces (hairs pale, spreading, about 0.3 
mm. long); pedicels 6 to 8 mm. long, circumscribed at base by several imbrl- 
crate oblong acute bractlets about 2 mm. long, continuous with calyx; calyx 
tube campanula te, 3 to 3.5 mm. long, about 4 mm. in diameter at an thesis; 
limb erecto-patent, 4 mm. long including lobes, the lobes ovate-deltoid, acute, 
about 3 mm. long and 2 mm. across; corolla tbin-carnose, cylindric, 16 to 19 
mm. long by 5 mm. in diameter, the lobes deltoid, about 2 mm. long; stamens 
equal, about 18 mm. long; filaments 3 mm. long, densely pubescent with matted 
retrorse hairs about 0.5 mm. long, continued into slender connectives; anther sacs 
smooth, about 8 mm. long; tubules slender, longer than the sacs, opening by 
apparently apical pores; style as long as corolla, the stigma truncate. 
Type locality: Monson, Department of Hu&nuco, Peru, altitude 3,300 to 
3,500 meters. Type collected by Weberbauer (no. 3374). 
Distribution : Known only from the type collection, 
Peru. 
HuAnuoo: Monson, Weberbauer 3374 (B, type). 
Although the corolla is unusually short and the tubules are less elongate than 
usual, there is no doubt that this plant is a true Ceratosterna, related to the 
two preceding species, 
6. Ceratostema buxifolium Field. & Gardn. Sert. PI. 1: pi 7. 1844. 
Thibaudia imcrophylla Lindl. Gard. Chron. 1848:23. 1848. 
Themistoclesia buxifolia Klotzsch, Linnaea 24:42. 1801. 
Small compact shrub; branchlets straight, striate, cinereous, glabrous, 
slightly swollen at petioles; stipules sometimes present, up to 2 mm. long; 
petioles slender, subrugose, 1 to 2 mm. long; leaf blades elliptic, 8 to 15 mm. 
long, 5 to 8 mm. broad, rigidly coriaceous, rounded or cuneate at base, rounded 
at apex, entire at margins, essentially glabrous, obscurely pll-nerved, the mid- 
nerve slightly impressed above, the secondary nerves immersed; flowers axil- 
lary, usually solitary, essentially glabrous in all parts; pedicels nigrescent, 
slender, flexuose, 10 to 20 mm. long, bibracteolate near base (bractlets lanceo- 
late, 2 to 3 mm. long), continuous with calyx; calyx tube broadly obconical, 
rugose, about 1 mm. long and 2 mm. in diameter; limb spreading, 3 mm. long 
including lobes, the lobes ovate, apiculate, about 1.5 mm. long and 4 mm. 
across; corolla tbin-carnose, subcylindric, 10 to 11 mm. long, about 4 mm. 
in diameter near base, gradually contracted above, the lobes deltoid, about 1 
mm. long; stamens equal, 9 to 10 mm. long; filaments subnigrescent, about 2 
mm. long, distally pilose, especially at margins, with spreading or ascending 
hairs about 0.2 mm. long, continued into short slender connectives; anther 
sacs dark castaneous, slightly granular, about 3.5 mm. long; tubules flexible, 
5.5 mm. long, opening by wide clefts nearly as long; style as long as corolla, 
the stigma truncate or subpeltate. 
Type locality : Monte de San Jos6, Peru. Type collected by Mathews (no. 
1178). 
Distribution : Andes of Peru. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 341 
Peru; Maclean (K). 41 Columbia," Lobb 2 (K, probably type of Thibaudia 
W 
miorophylla), 
JxtnIn: Huacapistana, 3,000 to 3,100 meters, Weberbauer 2075 (B). 
This is a pretty little species, without much superficial resemblance to the 
typical members of the genus. The Lobb collection, which is doubtless from 
Peru, is probably the type of Thibaudia microphylla, which was " raised from 
seeds gathered in Peru by Mr. William Lobb." 
7. Ceratostema microphyllum Hoer. Bot. Jahrb. Engler 42: 316. 1909. 
Shrub 1 to 2 meters high; branchlets subglabrous, subterete when old, chan- 
neled when young, swollen at base of petioles; petioles stout (1 mm. in di- 
ameter), about 1.5 mm. long, puberulous with very short scattered hairs or 
glabrescent; leaf blades ovate or oblong-ovate, 8 to IT mm. long, 6 to 10 mm. 
broad, rounded at base, acute at apex, entire and slightly thickened at margins, 
glabrous when old, when young sparsely white-pilose and with a few short 
appressed stiff brown hairs, obscurely 8 to 5 pli-nerved, the midnerre slightly 
depressed above, prominent beneath; flowers numerous near ends of branch 
lets, solitary or in fascicles of 2 or 3; pedicels slender (about 0.0 mm. in 
diameter), 10 to 14 mm. long, subterete, glabrous or with a few scattered stiff 
brown hairs, circumscribed at base by numerous imbricate triangular dilate- 
margined bractlets 2 to 3 mm. long, continuous with calyx; calyx tube 
obconical, 2.5 to 3 mm. long, about 2 mm. in diameter at summit, essen- 
tially glabrous; limb about 4 mm. long including lobes, the lobes triangular, 
acute, 2.5 to 3 mm. long, 2.5 mm. across base, sparsely pilose at margins; 
corolla essentially glabrous, cylindric, about 25 mm. long and 4 mm. in di- 
ameter, the lobes elongate-triangular, subacute, about 5 mm. long and 2 mm. 
across base; stamens slightly dimorphic (due to difference in filaments), about 
as long as corolla; filaments 3 mm. and 4 mm. long respectively, about 0.4 mm. 
• broad at base, densely white-pilose on all surfaces with spreading hairs about 
0.2 mm. long, attached to the anther dorsally near its base; anther sacs granu- 
lar, about. 4.5 mm. long; tubules slender, about 19 mm. long, opening by 
elongate distal clefts of indefinite length; style about as long as corolla, about 
0.3 mm. in diameter. 
Tyfk locality: Yanamanche, Department of Cuzco, Peru, altitude 3,400 
meters. Type collected by Weberbauer (no, 4974). 
Distribution ; Andes of southern Peru, altitude 3,300 to 3,700 meters. 
Pbbu. 
Cuzco: Yanamanche, Weberbauer 4974 (B, type). Cosfflipata, Weberbauer 
6928 (B, F). Marcapata, Weberbauer 7790 (F). 
8. Ceratostema graebnerianum Hoer. Bot. Jahrb. Engler 40: 315. 1909. 
Shrub; branchlets glabrous, shallowly grooved when young, subterete when 
old, fuscous, swollen at base of petiole; petioles subterete, glabrous, about 
2 mm. long; leaf blades oblong or ovate-oblong, 18 to 26 mm. long, 8 to 12 mm. 
broad, rounded or subcuneate at base, obtuse or subacute at apex, shallowly 
crenate at margins, glabrous above, sparsely brown-pilose or glabrous beneath, 
pinnate-veined, the midvein slightly impressed above, prominent beneath, the 
secondary veins 2 or 3 to a side, ascending, plane, oriented from midvein near 
base, the veinlets reticulate, obscure; flowers in fascicles of 2 or 3; pedicels 
subterete, glabrous, 8 to 12 mm. long, circumscribed at base by a few minute 
ovate glabrous bractlets, continuous with calyx; calyx tube obconical, about 
3 mm. long and 3 mm. in diameter at summit; limb about 5 mm. long includ- 
ing lobes, the lobes lanceolate-triangular, acute, about 3 mm. long, marked with 
a few black branching subparallel longitudinal veins not quite reaching the 
margins* the margins sometimes faintly soft-ciliate; corolla bright red, cylindric. 
342 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
about 25 mm. long, 3 to 4 mm. in diameter, with a few scattered minute stiff 
brownish hairs, the lobes lanceolate, subacute, often refiexed, about 7 mm, long; 
stamens slightly shorter than corolla (alternately slightly dimorphic); fila- 
ments about 2.5 mm. and 3.5 mm. long, respectively, distally pubescent with 
pale substrigose hairs up to 0.3 mm. long, continued into a long slender nigres- 
cent connective; anther sacs slightly granular, about 4 mm. long; tubules 
slender, about 19 mm. long, opening by short introrse clefts; style about as 
long as corolla, often exserted, the stigma truncate. 
Type locality : Sandfa, Department of Cuzco, Peru, altitude 3,100 to 3,300 
meters. Type collected by Weberbauer {no, 742), 
Distribution : Eastern Cordillera of southern Peru and northern Bolivia, 
altitude 2,800 to 3,60>p meters. 
Peru: Gachapota, Lechlcr 2585 (K), 2693 (K). 
Cuzco: Sandfa, Webcrbauer 742 (B, type). Lucumayo Valley, Cook <4 
Gilbert 1310 (N). Cerro de Cusilluyoc, Pennell 14096 (F, N, Y). 
Bolivia. 
La Paz: Unduuvi, Buchtien 31 (F, G, Y), 911 (F, N). 
Compared with the last species this differs only by its larger leaves. There 
are more or less intermediate specimens, and the specific identity of the two 
may well be questioned. Compared with the following species C. graebneria- 
num differs only by having its corollas glabrous rather than pilose. One of 
the specimens cited under C. mandoni (Bang 1939) has corollas sometimes 
pilose and sometimes quite glabrous, indicating that this character is not 
very trustworthy. The three names here discussed are questionably retained; 
were they not already established I should prefer to consider them as applying 
to forms of a single variable species. A local name for C. graebnerianum Is 
" pucapinchichu." 
9. Ceratostema mandoni Britton, Bull. Torrey Club 20: 137. 1893. 
Ceratostema pityerianum Hoer. Bot. Jahrb. Engler 42: 318. 1909. 
Ceratostema sanguineum Hoer. Bot. Jahrb. Engler 42:318. 1909. 
Shrub; branchlets sub terete and glabrous when old, when young grooved and 
sparsely pilose, swollen at bases of petioles; stipules usually present; petioles 
subtercte, stout (1 mm. in diameter), about 2 mm. long, giabrescent; leaf blades 
thick-coriaceous, oblong or ovate-oblong, 13 to 28 mm. long, 6 to 13 mm. broad, 
subcuneate or rounded at base, obtuse or subacute at apex, subentire and slightly 
thickened at margin, glabrous or sparsely pilose on both surfaces, pinnate-veined, 
the mid vein slightly impressed above, prominent beneath, the secondary veins 
obscure, oriented near base; flowers axillary or in groups of 2 or 3; pedicels 
stout (about 1 mm. in diameter), 5 to 15 mm. long, densely pubescent (hairs 
pale, spreading, about 0.4 mm. long), circumscribed at base by a few oblong 
acute pilose bractlets about 1.5 mm. long, continuous with calyx; calyx tube 
obconical, 2 to 3 mm. long, about 2 mm. in diameter at summit, pubescent as the 
pedicel; limb suberect, 5 to 7 mm. long, pilose (hairs somewhat shorter and 
sparser than those of the tube), the lobes lanceolate, short-acuminate, 4 to 5 
mm. long, about 2 mm. broad at base, with a few subparallel branching veins; 
corolla thin-carnose, densely pilose (hairs pale, spreading, about 0.25 mm. 
long), cylindric, subinfiated. 20 to 30 mm. long when mature, 6 to 8 mm. in 
diameter, the lobes elongate-triangular, short-acuminate, 4 to 5 mm. long, 2 
mm. across base; stamens 18 to 27 mm. long, approximately equal in length, the 
alternate filaments and anthers componsatingly unequal; filaments about 3 mm. 
and 3.5 mm. long, respectively, densely pilose distally on all surfaces (hairs 
spreading, pale brown, about 0.3 mm. long), attached to the anther dorsally 
SMITH—AMERICAN SPECIES OF THEBAUDIEAE 343 
near its base; anther sacs nearly smooth, 5 to 6 mm. long; tubules slender, 13 
to 20 mm. long, opening by elongate clefts; style about as long as corolla. 
Type locality : Mapiri, Department of La Paz, Bolivia, altitude about 3,100 
meters. Type collected by Busby (no. 2632). 
Distribution : Eastern Cordillera of southern Peru and northern Bolivia, alti- 
tude 2,700 to 3,000 meters. 
Peed. 
Cuzco: Sandfa, Weberbaucr 742a (B, type of C. pilgerUtmim). Between 
Sandla and Myomyo, Weberbauer 889 (B, type of C. sanguineum). 
Cedrobamba, Heller 2186 (N). Valle de Santa Ana, Bues 2114 (N, Y). 
Bolivia; Ban-g 1939 (F, G, N, T). Pelichuco, Pearce, In December, 1864 (K). 
Tacacoma, Mandon 548 (G, N). Tablas, Herzog 2147 (B). 
La Paz: Mapiri, Rusby 2632 (Y, type). Cocopunco, Tatc 312 (Y), 370 (Y). 
The taxonomic standing of this species is discussed In connection with C. 
graebnerianum. In the original publication the type is erroneously cited as a 
Bang collection. The type of C. pllgerianum in tlie original publication is cited 
as Weberbauer 472a. I am unable to find any consequential differences among 
the three types here involved. 
10. Ceratostema spectabile Kusby, Bull. N, Y. Bot. Gard. 4:404. 1907. 
Shrub; branchlets subterete, cinereous, soft-pilose with short spreading hairs 
when young, becoming glabrous, swollen at bases of petioles; petioles pilose 
as the branchlets, subterete, 2 to 3 mm. long; leaf blades oblong-ovate, 20 to 
30 mm. long, 6 to 12 mm. broad, cuneate at base, obtuse at apex, entire and 
plane at margins, sparsely white-pilose on both surfaces (hairs about 0.4 mm. 
long), becoming glabrous, pinnate-veined, the midvein slightly impressed above, 
prominent beneath, the secondary veins 2 or 3 to a side, ascending, oriented 
from midvein near base, plane, obscure, the veinlets reticulate^ obscure; 
flowers axillary, solitary or in fascicles of 2 or 3; pedicels terete, 6 to 10 mm. 
long, densely pubescent with pale spreading hairs about 0.4 mm. long, circum- 
scribed at base by a few lanceolate pubescent bractlets up to 7 mm. in length, 
bibracteolate near middle, continuous with calyx; calyx tube obconical, about 
5 mm. long and 4.5 mm. in diameter at summit, pubescent as the pedicel, 
the limb erect, about 6 mm. long including lobes, the lobes lanceolate-ovate, 
subacute, about 5 mm. long and 2.5 mm. across base; corolla bright red, 
densely pilose (hairs spreading, about 0.3 mm. long), cylindric, 35 to 50 mm. 
long, 7 to 10 mm. in diameter, longitudinally veined, the lobes triangular, 
subacute, about 3 mm. long; stamens nearly as long as corolla, the alternate 
filaments and anthers compensatingly unequal; filaments about 3 mm. and 
4 mm. long, respectively, densely pilose distally (hairs pale, spreading, about 
0.3 mm. long), continued into a long slender connective; anther sacs slightly 
granular, about 5 mm. long; tubules slender, about 27 mm. and 26 mm. long, 
respectively, opening by elongate distal clefts of indefinite length; style 
about as long as corolla, the stigma truncate. 
Type locality: Bolivia (probably Department of La Paz). Type collected 
by Bang (no. 2605). 
Distribution : Andes of Peru and Bolivia, altitude 3,000 to 3,600 meters. 
Peru. 
JunIn: Province Jauja, Weberbauer 6644 (B, F, N). 
Cuzoo: Lucumayo, Pearce (K). 
Bolivia: Bang 2605 (F, G, N, Y, type). 
La Paz: Unduavi, Buchtten 2979 (N, Y). 
344 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
This is a species quite distinct from the preceding on the basis of its more 
robust habit, larger leaves, and larger flowers. 
Explanation op Plate S.—Ceratostema apectabilet from photograph of type sheet. 
About one-half natural size. 
11. Ceratostema cor on a r him Linden; Hook. f. Bot. Mag. Curtis 93: pi, 5575. 
1866, as synonym. 
Thibaudia coronaria Hook. f. Bot. Mag. Curtis 02: pi. 5515. 1866. 
Themistoclesia cortmilla Lind. & Andi'£, Illustr. Hort. 17:176. pi. 33, 1870, 
Low compact shrub; branchlets subterete or angled, stramineous, swollen 
at bases of petioles, when young laxly pilose, hairs about 0.4 mm. long; 
stipules lacking or early deciduous; petioles subterete, stramineous, essentially 
glabrous, 1 to 2 mm. long; leaf blades ovate, rigidly coriaceous, 11 to 15 mm. 
long, 6 to 8 mm. broad, rounded or broadly cuneate at base, rounded or obtuse 
at apex, entire at margins, glabrous on both surfaces or minutely brown- 
pilose beneath, obscurely 3-nerved from base, the mldnerve slightly impressed 
above, raised beneath, the secondary nerves Immersed; flowers axillary, soli- 
tary or In pairs; pedicels rugose, 7 to 10 min. long, laxly pilose with pale hairs 
up to 0.5 mm. long, bibracteolate near base (bractlets lanceolate, about 1 mm. 
long, flmbriate), circumscribed at base by several imbricate ovate bracts up 
to 2 mm. long, obscurely articulate with calyx; calyx tube prismatic, strongly 
rugose, pilose as the pedicel, 2 to 2.5 mm. long, 2 to 3 mm. in diameter at 
anthesls; limb erecto-patent, submcmbranous, 2.5 mm. long including lobes, 
the lobes ovate-deltoid, about 2 mm. long, sometimes glandular-margined; co- 
rolla submembranous, essentially glabrous, subcylindric, 10 to 11 mm. long, 
4 to 5 mm. in diameter, the lobes deltoid, about 1.5 mm. long; stamens, sub- 
equal, as long as corolla; filaments 2 mm. long, sparsely pilose at distal margins; 
anther sacs slightly granular, 3.5 mm. long; tubules flexible, about 6 mm. long, 
opening by elongate clefts; sfyle filiform, about as long as corolla, the stigma 
truncate or subpeltate. 
Type locality : Near Pamplona, Department of Norte de Santander, Colom- 
bia. Type a cultivated plant, introduced by Linden. 
Disteibution : Known only from the type locality. 
Colombia. 
Nohte de Santander: Near Pamplona, Linden (K, type). Pftramo del 
Hatico, between Pamplona and Toledo, 2,900 meters, Killip & Smith 
20663 (N, Y). 
This species and the five following form a distinct group within the genus, 
separated from the more southern members by having the calyx articulate 
with the pedicel. The present species is quite distinct in the small size of all 
its parts. 
10. Ceratostema lanceolatum Benth, PL Hartw. 142. 1844. 
Low shrub; branchlets subterete, cinereous, soft-pilose with pale spreading 
hairs; stipules often present, aristate, 6 to 8 mm, long; petioles subterete, pilose, 
2 to 4 mm. long; leaf blades lanceolate-oblong, 5 to 7 cm. long, 1 to 2 cm. broad, 
coriaceous, attenuate at base, acute at apex, entire and re volute at margins, 
scabridulous, pilose on both surfaces with pale spreading hairs about 0.5 mm. 
long, becoming glabrous above, pinnate-veined, the in £dvein Impressed above, 
prominent beneath, the secondary veins 2 or 3 to a side, ascending, plane or 
obscure; flowers axillary, apparently solitary; pedicels rugose, stout, about 
15 mm. long, laxly pilose (hairs pale, about 0.8 mm. long), circumscribed at 
base by several ovate bracts 2 to 4 mm, long, bibracteolate near base (bractlets 
lanceolate, 6 to 6 mm. long, pilose), obscurely articulate with calyx; calyx tube 
f 
SMITH—AMERICAN" SPECIES OF THIBATTDIEAE 345 
obprismatic, caroose, winged to sinuses, 3 to 4 mm. long and about 5 mm. in 
diameter at anthesis, pilose as the pedicel; limb suberect, about 15 mm. long 
including lobes, subcoriaceous, the lobes lanceolate, about 13 mm. long and 5 mm. 
across base, sparsely pilose; corolla and stamens not seen in the type specimen 
but described as " sesquipolliearis, lobis lanceolatis acutis. Antherae vix corolla 
breylores "; style about 45 mm. long, the stigma truncate. 
Type locality : Loja, Province of Loja, Ecuador. Type collected by Hartweg 
(no. 788). 
Distribution : Known only from the type collection. 
Ecuador. 
Loja : Loja, Hartweg 788 (K, type). 
Although I have not seen a corolla of this species, it appears to belong in this 
section of the genus. From its allies it is easily distinguished by the leaf shape. 
13. Ceratostema speciosum Andrfi, Illustr. Hort. 17:52. pi. 9. 1870. 
Erect shrub; branchlets subterete, sparsely pubescent; petioles subterete, 
swollen, sparsely pubescent, 5 to 10 mm. long; leaf blades oblong or ovate-oblong, 
6 to 10 cm. long, 2 to 3 cm. broad, cordate or subcordate at base, acute at apex, 
entire and narrowly revolute at margins, glabrous above, sparsely pubescent 
beneath, pinnate-veined, the secondary veins 3 or 4 to a side; inflorescence 
axillary, fasciculate, usually 8-flowered; pedicels terete, robust, curved, 12 to 
20 mm. long, swollen distally and articulate with calyx; calyx tube obprismatic, 
short-pilose, 5-angled; limb suberect, about as long as tube, the lobes ovate- 
triangular; corolla carnose, subcylindric or narrowly 5-angled, 6 times longer 
than the calyx, glabrous; stamens slightly shorter than corolla, apparently 
equal; filaments glabrous; anther sacs granular; tubules slender, apparently 
about twice as long as sacs, opening by clefts; style about as long as corolla, the 
stigma truncate. 
Type locality : Loja, Province of Loja, Ecuador. Type collected by Wallis. 
Disteibution : Known only from the type collection. 
I have not seen a specimen of this species, the above notes having been drawn 
up from the original description and the plate. The large leaves seem to 
distinguish it from related species. 
14, Ceratostema rigidum Bentll. PL Hartw. 220. 1846. 
Shrub; branchlets subterete, brownish, slightly rugose; petioles stout (about 
2 mm. in diameter), 3 to 4 mm, long, glabrous; leaf blades oblong or ovate- 
oblong, 3 to 4 cm. long, 1.5 cm. broad, cordate at base, rounded at apex, entire, 
thickened and slightly revolute at margins, glabrous above, sparsely pilose 
beneath (hairs scattered, appressed, brownish, about 0.5 mm. long), 5-nerved, 
the secondary nerves oriented from base or slightly above, with the mid- 
nerve slightly impressed above, somewhat prominent beneath, the veinlets 
obscure; inflorescence axillary toward ends of branchlets, 3 or 4 flowered; 
rachis about 5 mm. long, rugose; pedicels glabrous, striate, about 6 mm. long, 
deciduously bibracteolate near base, articulate with calyx; calyx tube obpris- 
matic, rugose, short-pilose at base (hairs stout, about 0.3 mm. long); 3 mm. 
long and 3 mm. in diameter at summit at anthesis; limb about 13 mm. long 
including lobes, the lobes lanceolate, ovate, subacute, about 12 mm. long and 
5 mm. across base, with several longitudinal freely branching veins not quite 
reaching the margins, the margins ciliate with stout brown hairs about 0.5 
mm. long; corolla cylindric, about 32 mm. long, 7 to 11 mm. in diameter, 
essentially glabrous, viscid, the lobes triangular, subacute, about 25 mm. 
long; stamens slightly shorter than corolla, alternately slightly. unequal; 
filaments connate at base, about 3.5 mm. and 4.5 mm. long, respectively, 
marginally pilose (hairs copious, about 03 mm. long) * ventrally subpuberulous, 
346 CONTRIBUTIONS FROM THE NATIONAL. HERBARIUM 
attached to the anther dorsally near its base; anther sacs slightly granular, 
about 5 mm. long; tubules wide, about 20 mm. and 19 mm. long, respec- 
tively, opening by short distal oblique clefts; style about as long as corolla, 
the stigma truncate. 
Type locality: Laguim de Guanacas, Department of EL Cauca, Colombia. 
Type collected by Hartweg (no. 1208*). 
Distribution: Central Cordillera of southern Colombia, altitude 3,300 to 
3,700 meters. 
Colombia: Lehmann K172 (K). 
El Cauca: Pfiramo de Santo Domingo, Stuebel 271a (B). Mount Pan de 
Azticar, Pennell 7023 (Y). 
This is a beautiful species with compact leaves and glossy viscous corollas, 
15. Ceratostema pubiflorum Wedd. Chlor. And. 2:181. 1855. 
Shrub; branchlets subterete, fuscous, slightly puberulous, becoming glabrous; 
petioles glabrous, stout, about 1.3 mm. in diameter, 2 mm. long; leaf blades 
oblong or ovate-oblong, 13 to 18 mm. Ion?, 10 to 13 mm. broad, cordate at base, 
rounded or obtuse at apex, entire and thickened at margins, glabrous above, 
essentially glabrous beneath, lustrous, obscurely 5-nerved, the secondary nerves 
oriented slightly above base, with the midnerve plane above, slightly promi- 
nent beneath, the veinlets obscure; flowers axillary, solitary (?); pedicels 
subterete, 3 to 4 mm. long, puberulous or glabrous, declduously bibracteolate 
at middle, articulate with calyx; calyx tube subcylindric, glabrous, about 4 
mm. long and 4 m|m. in diameter; limb erect, about 0 mm. long Including 
lobes, the lobes oblong-lanceolate, subacute, 8 to 9 mm. long, about 3 mm. 
broad, cl 1 late with minute stiff reddish-brown hairs up to 0.4 mm. long, the 
sinuses acute; corolla campaimlate-cylindric, densely white-pilose {hairs about 
0.2 mm. long), up to 24 mm. long, about 5 mm. in diameter, slightly contracted 
at throat, the lobes triangular, acute, less than 1 mm. long; stamens slightly 
shorter than corolla, alternately slightly unequal; filaments firmly connate In 
a ring, pubescent distally with stiff white hairs up to 0.4 mm. long, 3 mm. and 
4 mm. long, respectively, attached to the anther dorsally near its base; anther 
sacs slightly granular, about 3.5 mm. long; tubules semiflexlble, about 10 mm. 
and 17 mm. long, respectively, opening by distal introrse clefts 3 to 5 mm. 
long; style about as long as corolla, the stigma truncate. 
Type locality; Province of Mariquita, Department of Tolima, Colombia, 
altitude 3,890 meters. Type collected by Linden (no. 918). 
Distribution : Central Cordillera of Colombia, altitude 3,500 to 3,900 meters. 
Colombia. 
Tolima: Province of Mariquita, Linden 918 (K, type cot 1.). 
Caldas: Below Paramo del Quindlo, Pennell & Hazen 10076 (N, Y). 
From the following this species is distinguished by its exceptionally elon- 
gate calyx lobes. 
16. Ceratostema parvifolium Benth. PI. Ilartw. 220. 1840. 
Shrub; branchlets subterete, pubescent with pale spreading hairs about 0.5 
mm. long when young, becoming glabrous; petioles subterete, rugose, about 1.2 
mm. in diameter, about 2 mm. long, puberulous or glabrescent; leaf blades ob- 
long or ovate-oblong, 20 to 35 mm. long, 9 to 15 mm. broad, cordate at base, 
rounded or obtuse at apex, entire and slightly revolute at margins, soft- 
pilose or glabrous above, pilose beneath (hairs pale, spreading, about 0.5 mm. 
long), becoming glabrous, obscurely 5-nerved, the midnerve slightly impressed 
above, prominent beneath, the secondary nerves oriented near base, plane, 
oksture; inflorescence axillary, subfasciculate, 2 to 5 flowered, circumscribed 
SMITH—AMERICAN SPECIES OF THIB ATTDIEAE 347 
at base by several deciduous oblong membranous bracts up to 5 mm. long; 
pedicels subterete, striate, 5 to 8 mm. long, densely and uniformly pilose 
(hairs pale, spreading, about 0.8 mm. long), declduously bibracteolate near base 
(bract lets about 3 mm. long), articulate with calyx; calyx tube obprismatic, 
3 to 4 mm. long, 3 to 4 mm. in diameter, pilose as the pedicel; limb 3 mm. 
long including lobes, the lobes triangular, acute, about 2 mm. long, pilose, es- 
pecially at margins; corolla cylindric, about 15 mm. long and 6 mm, in diameter, 
pilose (hairs about 0.4 mm. long), the lobes triangular, acute, 2 mm. long; 
stamens slightly dimorphic, slightly shorter than corolla; filaments subconnate 
at base, about 1.5 mm. and 2.5 mm. long, respectively, pilose distally with white 
hairs up to 0.5 mm. long; anther sacs slightly granular, 2.5 to 3 mm. long; 
tubules about 7 mm. long, opening by distal introrse clefts 2 to 3 mm. long; 
style as long as corolla, the stigma truncate; fruit black, becoming glabrous, 
subspherical, up to 12 mm. in diameter, the calyx limb persistent. 
Tyfb locality : Laguna de Guanacas, Department of El Cauca, Colombia, 
altitude about 3,650 meters. Type collected by Hartweg (no. 1208). 
Distribution : Andes of Colombia. 
Colombia. 
Cundinamabca : Eastern paramos of Guasca, toward Gachetfi, Ariste 
Joseph B. 112 (N). 
I have not seen the type of this species, but the above cited specimen agrees 
well with the description. 
DOUBTFUL SPECIES 
Cebatostema andbeanum Drake, Journ. de Bot. 3: 75. 1889. 
Type locality : Huacapampa, northern Peru. Type collected by Poortmann 
(no. 222). 
The type of this species is not available to me, but from the description, 
which emphasizes the lack of large calyx lobes, 1 conclude that It is not a 
species of Ceratostefma. Possibly it is to be sought in Caven&ishia. If so, it 
is a species not known to me. 
Cebatostema chjllacochknse Danguy & Client). Bull. Mus. Hist Nat. 28:435. 
1922. 
Type locality : Chillaeocba, Ecuador, altitude 3,500 meters. Type collected 
by Rivet (no. 772), 
By the authors this species is compared with C. harm&iatium, but inasmuch 
as the plant is from Ecuador and the description indicates an articulate calyx 
I am inclined to believe it related to the last five species listed in my key. 
I have not seen material referable to it. 
Cebatostema emabginatum R. & P. FL Peruv. Oliil. 4: pi. 884. 1802. 
Thibaudia emarginata Dun.; DC. Prodr. 7:561. 1839. 
The plant pictured and described in the above references is certainly not a 
species of Ceratostema, and I am inclined to think it belongs in the tribe 
Vaccinieae, rather than Thibaudleae. 
Cebatostema oblongifoliuu Dun.; DC. Prodr. 7:553. 1839. 
Type locality : Peruvian Andes. Type not cited. 
The description of this species, of which I have not seen the type, is too 
incomplete to permit speculation concerning its position. 
Cebatostema Peruvian um Gmel. Syst. Nat. 2:676. 1701. 
Type locality : Peru. Type collected by Joseph Jussieu. 
Unfortunately I have not been able to see the type or a photograph of this 
species, which is the type of the genus and the earliest described plant of the 
348 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
tribe Thibaudieae. The description applies equally well to any of the Peruvian 
species mentioned above, and possibly one of those names will eventually have 
to be supplanted by this. 
4. SEMIEAMISIA Klotzsch, Linnaea 34:25. 1851 
Calyx tube continuous with pedicel, obconical or narrowly angled to sinuses; 
limb suberect, the lobes 5, apiculate; corolla broadly campanulate, large, the 
lobes 5, triangular, acute; stamens 10, slightly shorter than corolla; filaments 
membranous, connate or distinct, attached to the anther dorsally near its base; 
anthers elongate, the sacs strongly granular, the tubules much longer than 
the sacs, opening by short introrse clefts; style filiform, nearly as long as 
corolla. 
Slender shrubs, usually epiphytic, with small ovate leaves; leaves coriaceous, 
alternate, petioled, pli-nerved; flowers solitary or in pairs, axillary; pedicels 
stout, deciduously bracteolate below middle. 
Distribution : Andes from Venezuela to Peru. Three species are known, 
all of which seem comparatively rare and fairly local in distribution. 
The beautiful large flowers, the continuous calyces, and the long slender 
tubules differentiate this genus from its allies. The genotype is S. apeciosa 
(Benth.) Klotzsch. 
KEY TO THE SPECIES 
Filaments distinct; corolla 6 to 10 mm. in diameter (Venezuela). 
1. S. karsteniana. 
Filaments connate below middle; corolla usually more than 10 mm. in diameter 
(Ecuador and Peru). 
Leaves ovate, 4 to 5 cm. broad, subcordate or truncate at base; calyx tube 
obprismatic, narrowly winged or angled 2. S. speciosa. 
Leaves oblong-ovate, 2 to 4 cm. broad, cuneate at base; calyx tube obconical. 
3. S. weberbaueri. 
1. Semiramisia karsteniana Klotzsch, Linnaea 24:26. 1351. 
Ceratostema karstenianum Hoer. Bot. Jahrb. Engler 42: 276. 1909. 
Low slender shrub, probably epiphytic; branchlets subterete, cinereous or 
brownish, slender, glabrous; petioles terete, subrugose, about 2 mm. long, 
glabrous; loaf blades ovate or ovate-oblong, 6 to 9 cm. long, about 3.5 cm. 
broad, rounded at base, acuminate at apex, entire or slightly crenulate at 
margins, glabrous above, deciduously short-brown-pilose beneath, B pli-nerved, 
the secondary nerves oriented near base, ascending, with the midnerve slightly 
impressed above, raised beneath, the veinlets reticulate, slightly raised on both 
surfaces; flowers axillary, solitary (?) ; pedicels glabrous, subrugose, slender, 
about 20 mm. long, bibracteolate above middle with lanceolate bractlets about 
2 mm. long, continuous with calyx; calyx tube obprismatic, carnose-angled to 
sinuses, 4 to 6 mm. long, 4 to 5 mm. in diameter at summit at anthesis, de- 
ciduously puberulous; limb subspreading, 2 to 3 mm. long including lobes, the 
lobes broadly ovate, about 1 mm. long and 5 mm. broad; corolla broadly cy- 
lindric, membranous, glabrous or faintly puberulous, 35 to 45 mm. long, 6 to 
10 mm. in diameter, slightly swollen at base, the lobes deltoid, 3 to 4 mm. long 
and broad; stamens equal, nearly as long as corolla; filaments distinct, about 
4 mm. long and 1.5 mm. broad, distally pilose with pale spreading hairs about 
0.2 mm. long, attached to the anther by short slender connectives; anther Bacs 
incurved at base, 6 mm. long; tubules membranous, slender, about 30 mm, long, 
opening by oblique pores less than 1 mm. long; style about as long as corolla, 
the stigma truncate. 
SiMlTH-—AMERICAN SPECIES OP THIB AUDIE AE 349 
Type locality: Puerto Cabello, State of Carabobo, Venezuela. Type col- 
lected by Karsten (no. 169). 
Distbibution : Known only from the type collection. 
V ENEKUMA. 
CABABOBO: Puerto Cabello, Karsten 169 (B, type). 
From the two remaining species of Semiramisia the present species Is dis- 
tinguished by its more slender flowers and distinct filaments. 
2. Semiramisia speciosa (Benth.) Klotzsch, Linnaea 24:25. 1851. 
Thibaudia speciosa Benth. PI. Hartw. 141. 1844. 
Slender shrub, probably epiphytic; branchlets subterete, slender, flexuose, 
cinereous or brownish, glabrous; petioles subrugose, 2 to 4 mm. long, glabrou#; 
leaf blades broadly ovate, 7 to 9 cm. long, 3 to 5 cm. broad, rounded or 
lightly subcordate at base, acuminate at apex, entire at margins, glabrous, 
5 to 7 pli-nerved, the secondary nerves oriented near base, arcuate-ascending, 
with the midnerve plane above, slightly raised beneath, the veinlets copiously 
reticulate; flowers axillary, apparently solitary; pedicels striate, glabrous, 
25 to SO mm. long, deciduously bracteolate, continuous with calyx; calyx tube 
obprismatic, 5-angled or 5-winged to sinuses (wings carnose, up to 1 mm. 
broad), about 6 mm. long, 5 to 8 mm. in diameter at summit at an thesis, 
glabrous; limb subspreading, submembranous, reticulate-veined, 3 to 5 mm. 
long Including lobes, the lobes broadly triangular, 1 to 2 mm. long, 6 to 8 mm, 
broad; corolla campanulate-cylindric, thin-carnose or submembranous, longi- 
tudinally veined, glabrous, 35 to 45 mm. long, 12 to 18 mm. in diameter, the 
lobes deltoid, 4 to 6 mm. long and broad; stamens nearly as long as corolla, 
equal; filaments connate In a short tube, glabrous, about 2 mm. long; anther 
sacs incurved at base, 8 to 9 mm. long; tubules membranous, slender, 25 to 30 
mm. long, the tips not observed; style about as long as corolla, the stigma 
truncate. 
Type locality : Mountains of Loja, Province of Loja, Ecuador. Type col- 
lected by Hartweg (no. 785). 
Distribution : Known only from the type collection. 
Ecuador. 
Loja: Loja, Hartweg 785 (B, K, type, Y). 
This species and the following are not sharply distinguished from one another, 
although the differences in leaf shape and in form of calyx tube are sufficient 
to permit their identification. 
Explanation or Plats 4.—Semir amis Ui tpeciosaj from photograph of type sheet. 
About one-half natural size. 
3. Semiramisia weberbaueri Hoer. Bot. Jahrb. Engler 42: 310. 1909. 
Low slender shrub, probably epiphytic; branchlets terete, slender, glabrous, 
cinereous; petioles terete, 4 to 5 mm, long, glabrous; leaf blades ovate-oblong, 
6 to 8 cm. long, 2 to 3.5 cm. broad, rounded to a truncate base, caudate- 
acuminate at apex, entire or slightly crenulate at margins, glabrous, 3 to 6 
nerved, the secondary nerves spreading from base, with the midnerve plane 
above, slightly elevated beneath, the veinlets copiously reticulate, slightly 
raised above, plane beneath; inflorescence axillary at ends of branchlets, 2- 
flowered (always?); pedicels glabrous, striate, about 3 cm. long, 0.0 mm. In 
diameter at base, gradually increasing to 2 mm. in diameter at apex, decidu- 
ously bibracteolate below middle (bractlets triangular, appressed, about 1 mm. 
long), continuous with calyx; calyx tube obconical, 8 to 9 mm. long, about 8 
350 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
mm. in diameter at summit, glabrous; limb erect, about 3 mm. long Including 
lobes, the lobes less than 1 mm. long, 5 to 7 mm. across; corolla broadly 
campanulate-cylindric, about 40 mm. long and 15 mm. in diameter, thin, 
orange-red, copiously longitudinally veined, glabrous, the lobes 4 mm. long, 
8 to 9 mm. across; stamens equal, 28 to 30 mm. long; filaments membranous, 
connate in a tube, about 6 mm. long, glabrous, attached to the anther dorsally 
by a broad connective; anther sacs about 6 mm. long, incurved at base; tubules 
membranous, rigid, erect, about 0.5 mm. in diameter, 20 mm. or more in length; 
stigma truncate. 
Type locality : East of Chuchapoyas, Department of Amazonas I'eru, alti- 
tude 2,200 meters. Type collected by Weberbauer (no. 4455). 
DISTRIBUTION: Mountains of Ecuador and Peru, altitude 1,200 to 2,200 meters. 
Ecuador: Awdrd (K). ltio de Uavuncunaeu, Andrtl 4567 (K). Tambo de 
Sa vanilla, Andrt (K), 4501 (K). 
PEBU. 
AmazonAs : East of Chachapoyas, Weberbauer 4455 (B, type). 
San MartTtj : Cerro tie Eseulero, Vie 52p (B). 
JunIn: Pichis Trail, Dos de Mayo, Killip & Smith 25850 (N, Y). 
5. ENGLERODOXA Iloer. Bot. Juhrb. Engler 42:310. 1909 
Calyx tube articulate with pedicel (continuous in E. loranthifiora), prismatic 
or obconicai; limb spreading or subevect, 5-lobed, the lobes triangular, acute; 
corolla subcylindrlc or 5-tingled, large, broadly apophysate at base, 5-lobed, the 
lobes lanceolate-triangular; stamens 10, equal, nearly as long as corolla; fila- 
ments stout, distinct, attached to the anther dorsally near its base; anthers 
elongate, the sacs strongly granular, the tubules slender, much longer than the 
sacs, opening b.v short subterminal pores; style filiform, about as long as corolla. 
Small compact shrubs with small coriaceous alternate pinnate-veined or pli- 
nerved petloled leaves; inflorescence axillary, short-racemose; flowers pedicelled, 
several to an inflorescence; pedicels rugose, deciduously bibracteolate. 
Distribution ; Andes of Ecuador. Three species are known, all apparently of 
limited range. 
As noted iu the discussion of generic relationships, the genus is characterized 
by its long apophysate corolla, elongate corolla lobes, and elongate anther sacs 
and tubules. As here considered, it includes two species with articulate calyces 
and one with continuous calyces. E. nlata Iloer. is the type species. 
KEY TO THE SPECIES 
Calyx articulate with pedicel; corolla 30 mm. long or mote. 
Leaves pinnate-veined, crenate-serrate; calyx lobes triangular, 2 mm. long or 
less 1. E. alata. 
Leaves pll-nerved, entire; calyx lobes elongate, about 6 mm. long. 
2. E. calycina. 
Calyx continuous with pedicel; corolla less than 20 mm. long. 
3. E. loranthifiora. 
1. Englerodoxa alata Hoer. Bot. Jahrb. Engler 42: 311. 1909. 
Subscandent shrub; branehlets angled or subterete, glabrous; petioles puberu- 
lous or glabrous. 2 to 5 mm. long, winged above; leaf blades ovate or oblong, 
2 to 5 cm. long, 1 to 2.5 cm. broad, subattenuate at base, subacute and apiculate 
at apex, strongly revolute and serrate at margins (serrations about 5 per 
centimeter), glabrous, pinnate-veined, the secondary veins 2 or 3 per side, 
spreading, ascending at margins, with the mid vein impressed above, prominent 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 351 
beneath, the vein lets reticulate, plane above, slightly raised beneath; inflores- 
cence axillary near ends of branchlets, short-race 111 ose, glabrous in all parts; 
rachls strlate, 1 to 3 cm. long, bracteate at base; pedicels rugose, 15 to 25 mm. 
long, stout (about 1.5 mm. in diameter near base, swollen to 2.5 mm. in diam- 
eter at apex), each subtended by an oblong acute bractlet up to 4 mm. long, 
bibracteolate slightly below middle, articulate with calyx; calyx tube prismatic, 
about 6 mm. long and a mm. in diameter at anthesis, narrowly winged to 
sinuses; limb spreading, 2 mm. long including lobes, the lobes subacute, about 
1.5 mm. long; corolla 5-angled, strongly apophysate at base, 40 to 50 mm. long, 
12 mm. in diameter across apophysis, 6 to 7 mm. in diameter above, the lobes 
lanceolate, 20 to 25 mm. long, 3 to 4 mm. across base, erect; filaments glabrous, 
nigrescent, about 4 mm. long; anther sacs incurved at base, about 16 mm. long; 
tubules very slender, erect, rigid, about 27 mm. long, opening by short oblique 
pores not more than 1.5 mm. long; stigma truncate. 
Type locality : Volcano of Tunguragua, Province of Tunguragua, Ecuador. 
Type collected by Sodiro (no. 92/4c), 
Distbxbution: Mountains of Ecuador (and Peru?). 
ECUADOR: Pearce (K). 
Tunguragua: Volcano of Tunguragua, Sodiro 92/4e (B, type); altitude 
about 3,900 meters, Popenoe 1292 (N). 
Ecuador or Pxru: Loft6 80 (K), 161 (K). 
2. Englerodoxa calycina (Bentli. & Hook.) A. C. Smith, sp. no v. 
Ceratostema calycinum Benth. & Hook. Gen. PI. 2: 570. 1876, nomen. 
Anthopterus calycinu# Spruce, Pl. exs. n. 5094, nomen. 
Frutex; laminis oblongo-ovatis integerrimis bast attenuatls aplce brevlter 
acuminatis pli-nerviis; floribus racemosis minute puberulis; calyce cum pedi- 
cello articulato, limbo quam tubo duplo longiore, lob is elongato-triangularibus; 
corolla 5-angulnta, lobis lanceolatis; fllamentis distinctly glabris, tubulis rigidis 
gracilllmis quam loculi.s paullo longioribus. 
Shrub; branchlets sub terete, glabrous, brownish; petioles thick (2 mm. in 
diameter), short (1 to 2 mm. long), glabrous, rugose, winged; leaf blades 
coriaceous, oblong-ovate, 6 to 8 cm. long, 3 to 3.5 cm. broad, glabrous, atten- 
uate at base, decurrent on petiole, short-acuminate or acute at apex, entire 
and slightly revolute at margins, 5 to 7 pli-nerved, the secondary nerves 
sharply ascending, oriented at or near base, the midnerve and secondary 
nerves deeply impressed above, strongly prominent beneath, the veinlets 
plane above, slightly raised beneath; racemes axillary, 4 to 8 flowered; 
rachis subterete, strlate, minutely puberulous, about 3 cm. long, bracteate at 
base with several imbricate ovate acuminate bracts 2 to 3 mm. long; pedicels 
stout (2 mm. in diameter), rugose, minutely puberulous, 15 to 20 ram. long, 
bibracteolate near middle with ovate acuminate bract lets about 3 mm. long, 
slightly swollen at apex, surmounted by a few minute cartilaginous teeth, 
faintly articulate with calyx; calyx and corolla finely puberulous without, 
the hairs pale, about 0.2 mm. long; calyx tube subcylindrlc, longitudinally 
furrowed, 2.5 mm. long, 3 to 4 mm. in diameter; limb ereeto-patent, sub- 
coriaceous, about 7 mm. long including lobes, the lobes elongate-triangular, 
subacute, 6 mm. long, 4 to 5 mm. broad at base; corolla 5-angled, often 
twisted, about 35 mm. long, 6 mm. in diameter at base, gradually contracted 
above, the lobes lanceolate, up to 12 mm. long; stamens erect; filaments 
coriaceous, glabrous, about 8 mm. long, 1 to 1.2 mm. broad at base, con- 
tracted into long slender connectives as long as the anther sacs; sacs 12 to 13 
mm. loAg, the tubules very slender (each 0.2 mm. in diameter), about 14 
84377—32 1 
352 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
mm. long, stiff, distinct but closely oppressed to one another, opening by 
minute introrse oval clefts about 1 mm. long; style about 28 mm. long, the 
stigma truncate; disk shallowly cup-shaped, about 4 mm, in diameter. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected in the 
Andes of Ecuador by R. Spruce (no. 5094). Duplicates at G, Y. 
Distribution: Known only from the type collection. 
From the preceding species E. calyoina is distinguished by its entire pll- 
nerved leaves and elongate calyx lobes. There has been no previous descrip- 
tion of the species. 
Explanation or Platb 5.—Englerodova vulpotna, from photograph of type sheet. 
About one-half natural size. 
3. Englerodoxa loranthiflora (Benth.) A. C. Smith. 
Ceratostema JorantMfiorum Benth. PI. Hartw. 142, 1844. 
Compact shrub; branches and branch!ets subterete, glabrous, brownish, be- 
coming gray with age; petioles stout (1.5 mm. in diameter), glabrous, rugose, 
2 to 5 mm. long; leaf blades coriaceous, lanceolate-elliptic, 4 to 6.5 cm. long, 
1.2 to 2 cm. broad, glabrous, cuneate at base, slightly decurrent on petiole, acute 
or subacute at apex, entire at margins, pinnate-veined, the secondary veins 3 
to 5 to a side, the lower pair or two sharply ascending, subparallel to margin, 
the upper pairs short, spreading, the veins and veinlets plane above, raised 
beneath; racemes axillary, 5 to 8 flowered; rachis rugose, glabrous, stout 
(2 mm. in diameter), 8 to 20 mm. long, bracteate at base with several imbricate, 
ovate, subacute, deeiduously cilia te-mar glued bracts 1.5 to 2 mm. long; pedicels 
stout (1.5 mm. in diameter), rugose, glabrous, 8 to 13 mm. long, bracteolate at 
or near the base with 1 or 2 bractlets resembling those of the rachis, swollen 
at apex, continuous with calyx; calyx and corolla glabrous; calyx tube ureeolate, 
strongly rugose, 5 to 6 mm. long, 4 mm. In diameter at summit; limb spreading, 
subcoriaeeous, 2 mm. long including lobes, the lobes 1.5 mm. long, 3 to 4 mm. broad 
at base, the sinuses subacute; corolla scarlet, carnose, cylindric, subrugose, 15 
to 20 mm. long, 0 mm. in diameter near base, reduced above, the lobes erect, 
lanceolate, acute, 5 to 8 mm. long, 2 mm. broad at base, the sinuses sharp; 
stamens about as long as corolla, erect ;• filaments distinct or slightly coherent 
at base, submembranous, glabrous, about 2 mm. long, contracted into slender 
connectives as long as anther sacs; sacs strongly granular, 5.5 to 6.5 mm. long; 
tubules slender (each 0.25 mm. in diameter), 8 to 8.5 mm long, rigid, opening 
by minute introrse oval oblique pores about 0.5 mm. long; style filiform, 18 mm. 
long, exserted, the stigma truncate. 
Type locality : Loja, Province of Loja, Ecuador. Type collected by Hartweg 
(no. 787). 
Distribution : Mountains of southern Ecuador. 
Ecuador: Jameson (K), 
Loja: Loja, Hartweg 787 (K, type) ; Lobl> (K). Chonta Cruz, Eueisch 
(K). Vicinity of Catamayo, Huebsch (K). Between La Toina and 
Loja, Hitchcock 21438 (N, Y). 
This Is a species resembling the two preceding in its deeply cleft corolla and 
long rigid tubules, but differing from them in having the calyx continuous with 
the pedicel. This character alone does not seem to merit generic rank, since 
the same conditions exist in the genera Thibaudia and Ceratostema. 
6. GONOCALYX Planch. & Lind, Gard. Chron. 1856:152. 1856 
Calyx tube articulate with pedicel, somewhat obprismatic; limb erecto-patent, 
5-lobed, the lobes triangular, apiculate; corolla subcylindric, 5-lobed, the lobes 
SMITH—^AMERICAN SPECIES 07 THIBAUDIEAE 353 
triangular, subacute; stamens 10, equal, nearly: as long as corolla; filaments 
distinct, attached to the anther dorsally near its base; anthers elongate, the 
sacs granular, the tubules longer than the sacs, opening by minute subterminal 
pores; style filiform, about as long as corolla. 
Small compact shrubs, sometimes epiphytic, with alternate,, coriaceous, vari- 
ously shaped leaves; flowers axillary, solitary or in pairs, or in, loose few- 
flowored racemes; pedicels slender, bracteate at base. 
Distribution : Three species, one each in northern Colombia, Porto Rico, 
and Dominica, respectively. 
The three species here included form a coherent group, although they have 
not previously been placed together. The genus is distinguished by the shal- 
lowly cleft cylindric corolla, the articulate calyx, the free filaments, and the 
slender tubules. G. pulcher Planch. & Lind. is the type species. 
KEY TO THE SPECIES 
Leaves orbicular-ovate, less than 3 cm. long, rounded or subacute at apex; 
tubules 3 or 4 times as long as locules. 
Corolla 18 to 20 mm. long; tubules opening by short clefts up to 2 mm long; 
leaf margin shallowly crenate (Colombia) 1. G. pulcher. 
Corolla 12 to 15 mm. long; tubules opening by subterminal pores not more 
than 0.5 mm. long; leaf margin entire (Porto Rico)_ 2. G. portoricensis. 
Leaves ovate, 5 to 10 cm. long, acuminate at apex; tubules less than twice as 
long as locules (Dominica) 3. G. smilacifolius. 
1. Gonocalyx pulcher Planch. & Lind. Gard. Chron. 1856:152. 1856. 
Shrub; branchlets purplish and angled when young, becoming subterete 
and brownish, glabrous; petioles puberulous or glabrous, subterete, 2 to 4 
mm. long; leaf blades ovate, 18 to 27 mm. long, 10 to 18 mm. broad, rounded 
and minutely apiculate at apex, cuneate at base, crenate at margins (crema- 
tions 4 or 5 per centimeter), glabrous, 5 to 7 nerved, the secondary nerves oriented 
from base or slightly above, ascending, with the midnerve slightly raised 
above, plane or slightly raised beneath, the veinlets reticulate, slightly raised 
above, obscure beneath; flowers axillary toward ends of branchlets, solitary 
or in pairs; pedicels striate, 15 to IS mm. long, glabrous, circumscribed at 
base by a few imbricate ovate bractlets up to 2 mm, long, bibracteolate near 
base, surmounted by a few minute deciduous cartilaginous teeth, articulate 
with calyx; calyx tube subcylindric, about 3 mm. long and 3.5 mm. in diameter 
at anthesis, slightly angled to sinuses, glabrous; limb erect, about 3 mm. long 
including lobes, the lobes about 1 mm. long; corolla cylindric, about 20 mm. 
long, 3 to 3.5 mm. in diameter, glabrous without, white-tomentose distally 
within, the lobes about 2 mm. long; filaments nigrescent, glabrous or 
sparsely pubescent at margins, about 3.5 mm, long; anther sacs incurved at base, 
about 4 mm. long; tubules slender, about 11 mm. long, opening by short 
distal clefts about 2 mm. long; style slightly exserted, the stigma truncate. 
Type locality : " Provinces of Pamplona and Ocafla," Department of Norte 
de Santander, Colombia, altitude about 2,150 meters. Type collected by Schlim. 
Distribution : Andes of northeastern Colombia. 
Colombia: Purdie (G, K). 
Cultivated plant: {K, type, raised from original.) 
This species and the following are very closely allied and form a distinct 
genus; the alliance of the third species with them is questionable. 
354 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
2, Otanocalyx portoricensis (Urban) A, C. Smith. 
Thibaudia portoricensis Urban, Symb. Ant 111. 1:376. 1890, 
Ceratostema portoricense Hoer. Bot. Jahrb. Engler 42:276. 1909. 
Low slender branching shrub; branchlets subterete, glabrous; petioles slen- 
der, glabrous, 1.5 to 3 mm. long; leaf blades subrotund, 10 to 20 mm. long, 
8 to 16 mm. broad, rounded at base, rounded or minutely apiculate at apex, 
subentire and strongly revolutc at margins, glabrous, obscurely 8 nerved, the 
mldnerve slightly impressed above, raised beneath, the secondary nerves as- 
cending from base, near margins, obscure, plane; flowers few, axillary, ap- 
parently solitary; pedicels subterete, glabrous, 7 to 9 mm. long, bracteolate at 
base with a few imbricate ovate bractlets up to 2 mm. long, fringed at sum- 
mit by a few deciduous glandular hairs, articulate with calyx ; calyx tube about 
2.5 mm. long and 2.5 mm. in diameter at anthesis, narrowly 5-winged to sinuses; 
limb 2 mm. long including lobes, the lobes less than 1 mm. long; corolla 
cyllndric, 12 to 14 mm. long and 3 mm. in diameter, broader above, glabrous, the 
lobes about 2 mm. long; filaments castuneous, about 1.5 mm. long, slightly 
puberulous distally or glabrous; anther sacs 2.5 mm. long; tubules erect, 
slender, about 10 mm, long, opening by minute subterminal pores about 0.5 mm, 
long. 
Type locality : Sierra de Luqulllo, Mount Jimtfties, Porto Rico. Type col- 
lected by Slntenis (no. 1363). 
Distribution : Mountains of Porto Rico. 
Porto Rico: Blauwr, in 1852 or 1853 (Y). Mount. Jim£nes, 8intent# 1363 (type 
collection, F, G, X, Y). El Yunque, Britlon & Bruner 7618 (Y) ; Boyn- 
ton 8216 (Y) ; about 1,050 meters, (Jteamn & Cook M186 (Y). Sierra 
de Naguabo, 690 to 1,035 meters, Shafer 3641 (F, G, N, Y), 
Explanation op Plate 0.—Gonocalyz portoricensis, from photograph of Rheet of type 
collection In the U. S. National Herbarium. About one-balf natural ilte. 
3. Gonocalyx smilacifolius (Griseb.) A. C. Smith. 
Vactinium smilacifolium Griseb. Fl. Brit. W. Ind. 144. 1859. 
Hornemannia smilaci folia Benth. & Hook. Gen. PI. 2: 567. 1876. 
Ceratostema milacifolium Hoer. Bot. Jahrb. Engler 42; 276. 1909. 
Shrub; branchlets terete, cinereous; petioles terete, glabrous, 5 to 7 mm. long, 
stout, about 2 mm. in diameter; leaf blades ovate, 7 to 10 cm. long, 5 to 6 cm. - 
broad, rounded or subcuneate at base, abruptly acuminate at apex, entire and 
slightly revolute at margins, glabrous, 5 to 7 nerved, the secondary nerves 
oriented from or near base, arcuate, with the mldnerve slightly impressed or 
plane above, prominent beneath, the veinlets copiously reticulate, plane or 
obscure above, slightly raised beneath; inflorescence axillary towards ends of 
branchlets, loosely racemose, 4 to 8 flowered, glabrous in all parts; rachis terete, 
sletader, 2 to 5 cm. long; pedicels rugose, 10 to 18 mm. long, cyllndric (0.5 
mm, in diameter at base, swollen to nearly 1 mm. in diameter distally), 
bibracteolate near base with ovate bractlets about 1.3 mm. long, articulate 
with calyx; calyx tube subcylindric, about 4 mm. long and 3 mm. in diameter 
at anthesis, narrowly winged to sinuses; limb subereet, 2 to 2.5 mm. long in- 
cluding lobes, the lobes less than 1 mm. long, faintly dilate at margins; corolla 
cyllndric, about 7 mm. long and 4 mm. in diameter; filaments about 2 mm. 
long, glabrous; anther sacs abruptly narrowed at base, about 2.5 mm. long; 
tubules very slender, about 3.5 mm. long, opening by minute subterminal pores 
less than 0.5 mm. long; stigma truncate. 
Type locality : Coulabion Mountains, Dominica. Type collected by Imray. 
Distribution: Dominica. 
SMITH—AMERICAN SPECIES OF 1HIBATJDIEAE 355 
Dominica. : Eggers 1038 (K); Lloyd 302 (T). Coulabion Mountains, Imray 
(G, type collection). 
This species is very distinct from the two preceding and Its place in the 
genus may be questioned. However, it is surely not a Ceratostema, and the 
flower structure is so close to that of the two preceding species of Qotvocalyx 
that the great difference in leaves may be considered of secondary importance. 
7. SIFHONANDRA Kiotzsch, Linnaea 24: 24. 1851 
(Siphmostema- Griseb.; Lechl. Kerb. Amer. Austr. 58. 1857, liomen) 
Calyx tube articulate with pedicel, short-cylindric; limb subspreadlng, the 
lobes 5, triangular, acute; corolla cylindric, 5-lobed, the lobes triangular, 
subacute; stamens 10, equal, nearly as long as corolla; filaments membranous, 
connate, attached to the anther dorsally near its base; anthers elongate, the 
sacs granular, the tubules much longer than the sacs, opening by strictly 
terminal flaring pores; style filiform, frequently exserted. 
Small compact shrubs, often epiphytic, with small alternate, somewhat 
crowded, coriaceous, pinnate-veined, petioled, oblong leaves; inflorescence axil- 
„ lary, short-racemose; flowers pediceled, several to many to an inflorescence; 
pedicels rugose, deciduously bibracteolate. 
Distribution : Andes of southern Peru and northern Bolivia at high eleva- 
tions. Two species are known. 
This genus is characterized by connate filaments, terminal pores in the slender 
tubules, and an articulate calyx. Its relationship to other members of the 
group has been previously discussed. 8. clliptica (R. & P.) Kiotzsch is the 
type species. 
KEY TO THE SPECIES 
Pedicels and calyces persistently pubescent, the hairs crowded, pale, about 
0.3 mm. long 1. S. pilosa. 
Pedicels and calyces essentially glabrous (hairs, if present, sparse and lax). 
2. S. elliptica. 
1. Siphonandra pilosa A. C. Smith, sp. nov. 
Siphonostema costatum Griseb.; Lechl. Herb. Amer. Austr. 58. 1837, nomen. 
JTrutex; ramulis petiolisque puberulis; laminis oblongis vel leviter obovatiB 
' basi cuneatis apice subacutls subtus parce pilosis pinnatinerviis; inflorescentia 
racemosa ubique breviter pilosa; calyce cylindrico, limbo tubum subaequante; 
corolla cylindrica; staminibus aequalibus, fllamentis glabris connatis, tubults 
gracilibus erectis quam loculis 4 ad 5-plo longioribus poris terminalibus 
dehiscentibus. 
Shrub; branchlets subterete, stout, pale puberulous; petioles subterete, rugose, 
3 to 5 mm long, puberulous or glabrous; leaf blades oblong or slightly Obovate, 
3 to 4.5 cm. long, 1 to 2 cm. broad, cuneate at base, obtuse or subacute af apex, 
entire and slightly re volute at margins, essentially glabrous above, sparsely 
pilose beneath (hairs pale, scattered, lax, about 0.4 mm. long), the venation 
pinnate, the midvein deeply impressed above, somewhat prominent beneath, 
the secondary veins 3 or 4 to a side, ascending, slightly impressed above, plane 
beneath, the veinlets reticulate, obscure; inflorescence axillary at ends of 
branchlets, racemose, 8 to 15 flowered; rachis 1.5 to 2.5 cm. long, pilose (hairs 
copious, pale, about 0.3 mm. long), bracteate at base with several ovate bracts 
about 2 mm. long; pedicels rugose, pilose as the rachis, 8 to 13 mm. long, 
bracteate near base (bracts several, ovate, acuminate, about 1.5 mm. long. 
356 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
dilate-margined), articulate with calyx; calyx tube cylindric, about 4 mm. 
long and 2.5 mm. in diameter at anthesls, pilose with short pale spreading 
hairs; limb spreading, about 3.5 mm. long including lobes, the lobes about 1.5 
mm. long and 3 mm. across; corolla cylindric, about 26 mm. long and 5 mm. in 
diameter, sparsely pilose or glabrous, the lobes triangular, subacute, about 1.5 
mm. long; stamens about 25 mm. long; filaments castaneous, firmly connate In 
a ring, about 5 mm. long, glabrous; anther sacs granular, incurred and faintly 
setose at base, about 4 mm. long; tubules membranous, erect, about 18 mm. 
long, slender, 0.3 mm. or less in diameter, opening by strictly terminal flaring 
pores; style slightly exserted, the stigma peltate; fruit elliptic-ovoid, sparsely 
pilose, up to 1 cm. long, the calyx limb decurrent. 
Type in the herbarium of the New York Botanical Garden, collected in the 
vicinity of Tacacoma, Cerro de Tuile, Province of Lareeaja, Department of 
La Paz, Bolivia, altitude 3,350 meters, May or June, 1860, by G. Mandon (no. 
549). Duplicates at G, K. 
Distribution: Southern Peru and northern Bolivia. 
Peru: Tablna, Lechter 2053 (K). 
The persistent pubescence of the pedicels and calyces separates this speciea 
from the following. 
2. Siphonandra elliptica (R. & P.) Klotzseh, Ltnnaea 24:24. 1851. 
Thibaudia clUptica R. & P. PL Peruv. Chil. 4: pi. S&J. 1802. 
Siphonostema myrtifolium Griseb.; Lechl. Berb. Amer. Austr. 58. 1857, 
noraen. 
Geratostema ellipticum Benth. & Hook. Gen. PI. 2: 570. 1876. 
Eurygania elliptica Brit ton, Bull. Torrey Club 20:137. 1893. 
Geratostema hookeri Britton, Bull. Torrey Club 20:137. 1893. 
Ceratostema iceberbaueri Hoer. Bot. Jnhrb. Engler 42: 316. 1909. 
Shrub; branchlots sub terete, brownish, slightly puberulous when young, 
becoming glabrous; petioles subterete, glabrous, 4 to 5 mm. long; leaf blades 
oblong or ovate-oblong, 3.5 to 5.5 cm. long, 1.5 to 2.5 cm. broad, cuneate at base, 
obtuse or subacute at apex, entire or faintly crenulate and slightly revolute 
at margins, glabrous or sparsely brownish-pilose above, sparsely pilose beneath 
(hairs scattered, appressed, dark brown, about 0,5 mm. long), becoming glabrous, 
the venation pinnate, the midvein Impressed above, prominent beneath, the sec- 
ondary veins 3 to 5 to a side, spreading, ascending at margin, slightly impressed 
above, raised beneath, the veinlets copiously reticulate, plane; inflorescence axil- 
lary near ends of branches, racemose, 5 to 15 flowered; rachis 2 to 5 cm. long, 
glabrous or slightly pilose with pale spreading hairs up to 0.3 mm. long, 
striate, deciduously bracteate at base with several ovate bractlets about 1.5 
mm. long; pedicels sparsely pilose or glabrous, rugose, 7 to 20 mm. long, 
bibracteolate toward base (bracts ovate, acuminate, ciliate margined, up to 
3 mm. long), surmounted by several minute cartilaginous teeth; calyx tube 
about 3.5 mm. long and 2.5 mm. in diameter at an thesis, essentially glabrous; 
limb 4 to 4.5 mm. long including lobes, the lobes up to 2 mm. long; corolla 
about 25 mm. long and 4 mm. in diameter, essentially glabrous, the lobes obtuse, 
about 1 mm. long; filaments glabrous, about 6 mm. long; anther sacs incurved, 
at base, 5 mm. long; tubules erect, slender, less than 0.4 mm. in diameter; 
style about as long as corolla, the stigma peltate; fruit cyiindric-ovoid, glabrous, 
up to 12 mm. long, the calyx limb decurrent. 
Type locality: Peru. Type collected by Ruiz and Pavon. 
Illustration : Hook. Icon. PI. 2: pi. 108. 1837. 
DisTRimmoN: Andes of Peru and northern Bolivia, altitude 3,000 to 3,900 
meters. 
SMITH—AMERICAN SPECIES OF THIBAUDIBAE 357 
Peru : Huauacabra, Mat hexes 884 (K). San Gavan, Lechler 2276 (K). 
Apubimac: Rto Pinkos, Weberbauer 5861 (B, F, N). 
Cozco: Sandla, Weberbauer 740 (B, type of Geratostema weberlaueri). 
Cosfiipata, Weberbauer 6929 (B, F, N). Cerro de Cusilluyoc, Pennelt 
13857 <F, N, Y). Oedrobamba, Seller 2190 (N). 
Bolivia: Eastern Andes, Peo/ree 790 (K), 
La Paz: Mapiri, Rushy 2036 (B, F, G, N, Y). Cocopunco, Tate 371 (Y). 
Between Okara and Ancoma, Tate 862 (Y), 
Cocha&auba : Cochabamba, Bang 2003 (Y). Cejawald, Steinbaeh 
9529 (Y). 
There has been a good deal of disagreement as to the generic position of this 
species, but as pointed out iu the discussion of genera at the beginning of this 
treatment, it seems to fall into a distinct genus as founded by Klotzseh, Al- 
though I have not seen the type of the species, the descriptions and the two 
available plates agree with the above-cited specimens, Including the type of 
Geratostema weberbaueri. 
1 P 
S. PER1CLES1A A. C. Smith, gen. nov. 
Calyx cum pedicello articulatus, tubo late obconico, limbo magno erecto 
4-lobato, lobis lanceolato-triangularibus. Corolla anguste cylindrica 4-Iobata, 
lobis lanceolatis. Stamina 8 corollam subaequantia, fllamentis connatis, 
antheris elongatis, tubulis gracilibus quam loculis multo longiorlbus poris 
obliquis dehiscentibus. Frutex (epiphyticus 7), laminis coriaceis alternis petio- 
latis obscure pli-nerviis. Inflorescentla 1 vel 2-flora subterminaiis. 
Calyx tube articulate with pedicel, broadly obconical; limb large, suberect, 
4-lobed, the lobes lanceolate-deltoid, acute; corolla narrowly cylindric, 4-lobed, 
the lobes lanceolate; stamens 8, nearly as long as corolla; filaments mem- 
branous, connate; anthers elongate, the sacs granular, the tubules much longer 
than the sacs, opening by oblique pores; style filiform, about as long as corolla. 
Low slender shrubs, perhaps epiphytic, with alternate, coriaceous, obscurely 
pll nerved, petioled leaves; inflorescence 1 or 2 flowered, sub terminal; flowers 
pedicelled, the pedicels striate, bracteolate. 
Distribution : Known only from a single species, the exact geographic 
locality for which is a matter of doubt. It is from the Andes of either 
Colombia or Peru. 
This genus is immediately recognized by its four large calyx lobes, its con- 
nate filaments, and Its slender tubules with oblique pores. 
Following Klotzsch's custom of naming genera of Vacclniaceae after his- 
torical figures, this genus is dedicated to the Greek statesman Pericles. 
1. Peiiclesia flexuosa A. C. Smith, sp. nov. 
Frutex gracllis generis characteribus; ramulis petiolisque decidue puberulls; 
laminis lanceolato-oblongis basi attenuatis apice obtuse acuminatls obscure 3 ad 
5 pli-nerviis; floribus ut supra descriptis. 
Slender shrub, probably epiphytic; branchlets subterete, striate, slender, 
deciduously puberulous with pale Spreading hairs up to 0.2 mm. long; petioles 
subrugose, about 2 mm. long, deciduously puberulous; leaf blades lanceolate- 
oblong, 4 to 6 cm. long, 1.2 to 1.8 cm. broad, attenuate at base, obtusely acuminate 
at apex, entire and narrowly revolute at margins, glabrous on both surfaces; 
obscurely 3 to 5 pll-nerved, the midnerve slightly Impressed above, prominent 
beneath, the secondary nerves obscure, ascending; inflorescence terminal (or 
axillary?); flowers solitary or In pairs, the pedicels, calyx tube, and corolla 
densely pilose, the hairs pale, spreading, up to 0.4 mm. long; pedicels striate, 
358 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
about 15 mm long, bracteolate at base and blbraeteolate near middle with 
lanceolate puberulous bractlets 4 to 6 mm. long, articulate with calyx; calyx 
tube broadly obconical, 3 to 4 mm. long, 3 mm. in diameter at summit at 
anthesis; limb large, flaring, 20 to 25 mm. long including lobes, the lobes 4, 
lanceolate-deltoid, acute, membranous, closely reticulate-veined, sparsely pilose 
at margins, 20 to 25 mm. long, 10 to 12 mm. broad at base; corolla sub mem- 
branous, about 50 mm. long, 6 to 10 mm. in diameter at base, gradually taper- 
ing distally, 4-Iobed, the lobes lanceolate, long-acuminate, about 20 mm, long, 
S to 4 mm. across base; stamens 8, nearly as long as corolla; filaments castane- 
ous, membranous, firmly connate in a tube, about 7 mm. long, sparsely pilose at 
distal margins with hairs about 0.5 mm. long; anthers rigidly erect, the sacs 
granular, stout, incurved at base, 5 to 6 mm. long, the tubules membranous, 
very slender, less than 0.3 mm. in diameter at apex, about 35 mm. long, opening 
by oblique pores 0.5 mm. long; style filiform, as long as corolla, striate, the 
stigma truncate or subpeltate. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected in 
woods at "Rosario, Columbia," altitude 1,550 meters, by W. Lobb (no. 79). 
Distribution : Known only from the type collection. 
This beautiful plant is the only species of the genus yet discovered. The 
doubt concerning the exact locality of the collection of Lobb's plants labeled 
** Columbia "—whether Colombia or Peru—makes it impossible to assign this 
genus a definite geographic range. 
Explanation or Plate 7.—Pericteftia flexuosa, from photograph of type sheet. About 
one-half natural size. 
9. OBEANTHES Renth. I'l. Hartw. 140. 1844 
Calyx tube continuous with pedicel, cylindric, often falcate; limb suberect, 
5-lobed, the lobes lanceolate, acute; corolla cylindric, 5-lobed, the lobes broadly 
ovate; stamens 5, equal, nearly as long as corolla; filaments membranous, con- 
nate, attached to the anther sacs at about the middle; anthers elongate, the 
sacs nearly smooth, the tubules longer than the sacs, opening by minute 
oblique pores; style filiform, slightly exserted. 
Low slender epiphytic shrub, with small, coriaceous, alternate, obscurely 
5-nerved, ovate leaves, the petioles very short; flowers axillary, solitary or in 
pairs; pedicels short, minutely bracteate at base. 
Distribution : One species, in the Andes of Ecuador. 
This very distinct genus is distinguished by having only five stamens, 
elongate calyx lobes, ovate corolla lobes, oblique pores, and an elongate sub- 
sessile calyx tube. 
1. Oreanthes buxifolius Benth. PI. Hartw. 140. 1844. 
Low slender shrub; branchlets subterete, glabrous or short-pilose; petioles 
slender, glabrous, 1 to 2 mm. long; leaf blades ovate, 2 to 3 cm. long, 1.2 to 
1.6 cm. broad, rounded or subcuneate at base, rounded at apex, entire and 
slightly revolute at margins, glabrous, 5-nerved, the secondary nerves oriented 
from base or slightly above, with the midnerve slightly raised on both sur- 
faces, somewhat obscure, the veinlets copiously reticulate, obscure in mature 
leaves; flowers few, axillary, solitary or in pairs; pedicels minute, less than 
1 mm. long, blbraeteolate at base with ovate triangular bractlets up to 2 mm, 
long; calyx tube 3 to 5 mm. long, 1 to 1.5 mm. in diameter at anthesis, 
declduously pilose with pale hairs about 0.3 mm. long; limb about 6 mm. long 
including lobes, glabrous, the lobes 5 to 9 mm. long, 1 to 2 mm. across base; 
corolla about 25 mm. long and 3 mm. in diameter, flaring at apex, glabrous, the 
lobes suberect, blunt, 5 mm. long and 3 mm. across; filaments castaneous, & mm. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 359 
long, glabrous; anther sacs about 9 mm. long; tubules very slender, about 12 mm. 
long, opening by a minute pore less than 0.5 mm. long; stigma peltate; fruit 
subcylindric, rugose, about 10 mm. long and 2.5 mm. in diameter, surmounted 
by the persistent calyx lobes. 
Type locality : Mount El Sisme, near Loja, Province of Loja, Ecuador. 
Type collected by Hartweg (no. 783). 
Distribution : Known only from the type collection. 
ECU A DOB. 
Loja: Mount El Slsme, near Loja, Hartweg 783 (K, type). 
The only species of a very distinct genus. 
10. MYCEBINTJS A. C. Smith, Bull. Torrey Club 58: 441. 1931 
Calyx articulate with pedicel, turbinate, the base cuneate, the limb dilated, 
5-lobed, narrowly winged, each wing continuing to the apex of a lobe; corolla 
cylindric, carnose, 5-lobed; stamens 10, equal, shorter than corolla; filaments 
stout, glabrous, distinct, continued into short connectives which divide into 
2 slender arms each of which continues to the apex of a tubule; anthers stout, 
the sacs finely granular, the tubules 2, short, membranous, dehiscing by introrse 
oval clefts; style stout, the stigma truncate. 
A low shrub, the branches and branchlets subterete, glabrous; leaves alter- 
nate, thick-coriaceous, short-petiolate, pinnate-veined, rounded or subcuneate 
at base, obtuse at apex, entire and strongly recurved at margins; inflorescence 
few-flowered, fasciculate or short-racemose, the flowers pedicellate, the pedicels 
declduously braeteolate. 
Distribution: One species thus far known, from Mount Duida in southern 
Venezuela. 
As previously mentioned, this genus is distinguished from Macleania by hav- 
ing its calyx wings opposite the lobes and its divided connective extended to 
the summit of the tubules. 
1. Mycerinus sclefophyllus A. C. Smith, Bull. Torrey Club 58:442. pi. 36. 1931. 
Low shrub; branchlets angled, glabrous; petioles thick, 2 to 5 mm. long, 
sometimes winged dlstally; leaf blades thick-coriaceous, ovate-oblong, 4 to 6 
cm. long, 2 to 3 cm. broad (appearing narrower because of revolute margins), 
sparsely black-punctate on both surfaces, obtuse at apex, rounded or sub- 
cuneate at base, much thickened and loosely revolute at margins, pinnate- 
veined, the midvein impressed above, prominent beneath, the secondary veins 
6 to 8 to a side, spreading, plane or slightly impressed above, raised beneath, 
the veinlets reticulate, obscure or plane; flowers fasciculate or short-racemose, 
2 to 4 to an inflorescence; pedicels subterete, 15 to 20 mm. long, stout, glabrous, 
declduously minute-bracteolate at base and summit; calyx coriaceous, about 8 
mm. long, 5 to 6 mm. in diameter near summit, winged for entire length by 5 
fleshy coriaceous wings, each of which continues to the apex of a calyx lobe, 
the lobes incurved, triangular, acute, about 3.5 mm. across base and 2 mm. 
long; corolla tubular, subcylindric, about 6 mm. long and 5 mm. in diameter 
at middle (not quite mature); stamens about 4 mm. long; filaments castaneous, 
carnose, 2 mm. long, loosely connate at base; anther sacs about 3 mm. long, 
stout, the tubules separable to their bases, opening by clefts about 0.8 mm. 
long; style cylindric, about 6 mm. long. 
Type locality: Summit of Mount Duida, State of Amazonas, Venezuela, 
altitude about 2,200 meters. Type collected by G. H. H. Tate (no. 603). 
Distbibutioit : Known only from the type collection. 
VlBNBZUKLA. 
Amazonas: Summit of Mount Duida, Tate 603 (Y, type). 
360 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
/ 
11. MACLEANIA Hook. Icon. PI. 2: pi. 109. 1837 
(? Biramia Neraud; Freyc. Voy. Uran. Bot. 28. 1826, nomen) 
(Tyria Klotzscb, Linnaea 24:21. 1851) 
Calyx tube articulate with pedicel, short-cylindric or campanulate; limb 
erecto-patent, 5 (rarely 3 of 4) lobed, the lobes triangular, subacute; corolla 
subcylindric or elongate-urceolate, o-lobed, the lobes triangular, subacute; sta- 
mens 10 (rarely fewer), equal, usually half as long as corolla; filaments dis- 
tinct or connate, attached to the anther dorsal!y near its base; anthers stout, the 
sacs strongly granular, the tubules about as long as the sacs, laterally connate 
or fused into a single tubule (rarely completely distinct), opening by elongate 
distinct or fused clefts; style filiform, about as long as corolla or exserted. 
Compact shrubs, often epiphytic, with coriaceous alternate pinnate-veined or 
pli-nerved leaves; inflorescence axillary or terminal, subfascieulnte or racemose; 
flowers pediceiled, few to many to an inflorescence; pedicels deciduously bibrac- 
teolate. 
Distribution: Continental tropical America from southern Mexico to Peru, 
usually at high altitudes. Thirty-two species are here described, and in addi- 
tion there are two names which I am unable to place. 
The relationship of Mfldeania to other members of the tribe has already been 
thoroughly discussed. It is characterized by its conical fused or connate tubules 
and its unspurred connectives. M. floribunda Hook, is the type species. 
KEY TO THIS SPECIES 
Anthers produced into a single tubule. 
Filaments connate most of their length; corolla glabrous (or sparsely pilose 
in no. 15). 
Leaf base cuneate (rarely sub truncate). 
Mature corolla more than 30 mm. long, 3 times as long as stamens. 
Leaves and flowers glabrous; calyx lobes triangular, about 15 mm. 
long 1. M, longiflora. 
Leaves (especially beneath) and flowers (especially pedicels and 
calyces) farinose with minute reddish hairs; calyx lobes aplculate, 
about 0.5 mm. long 2. M. macrantha. 
Mature corolla up to 22 mm. long, twice as long as stamens. 
Lower surface of leaves and flowers pilose with minute stout reddish 
hairs 3. M. floribunda. 
Lower surface of leaves and flowers essentially glabrous (or sparsely 
pilose with pale lax hairs). 
Corolla cylindric; leaves narrowly ovate, up to 2.5 cm. broad, attenu- 
ate at base, appearing subsesslle (petiole not more than 2 mm. 
long, winged) 4. M. antioquiae. 
Corolla 5-angled; leaves broadly ovate, up to 4.5 cm. broad, truncate 
or cuneate at base; petiole 2 to 5 mm. long. i 
Flowers 4 or more to an inflorescence; corolla about 15 mm. long 
(Colombia)  5. M. stricta. 
Flowers 3 to an inflorescence; corolla more than 20 mm. long 
(Peru) 0. M. angulata. 
SMITH—AMERICAN SPECIES OP THIBAUDIEAE 861 
Leaf base cordate or subcordate (rarely truncate). 
Calyx wings produced beyond lobes, forming perpendicular spurlike ap- 
pendages; corolla lobes frequently spurred 7. II. pentaptera. 
Calyx wings not produced beyond lobes (or slightly so in no. 14). 
Leaves amplexlcaul. 
Inflorescence short-racemose; calyx lobes apiculate, less than 0.5 mm. 
long 8, M. rotundifolia. 
Inflorescence subfasciculate; calyx lobes deltoid, about 2 mm. long. 
9. M, amplexicaulis. 
Leaves not amplexlcaul. 
Calyx lobes triangular-acute, 1.5 to 2 mm. long, the sinuses acute 
(Costa Rica and Panama)  10. M. ovata 
Calyx lobes apiculate, up to 1 mm long, the sinuses rounded or obtuse. 
Leaves linear-lanceolate, at least 5 times as long as broad, acute at 
apex  11. M. linearifolia 
Leaves ovate, 2 or 3 times as long as broad, blunt at apex. 
Inflorescence glabrous. 
Flowers small (pedicel S to 5 mm. long; corolla 15 to 16 mm. 
long; stamens 6.5 mm. long)—  12. M. compacta 
Flowers comparatively large (pedicel 10 mm. long or more; 
corolla 20 to 25 (rarely 18) mm. long; stamens 9 to 11 
mm. long). 
Inflorescence fasciculate; calyx wings not dlstally produced 
(Mexico and Guatemala)   13. M. lnslgnls. 
Inflorescence short-racemose; calyx wings slightly produced 
distally (South America) ;— 14. M. cordifolia. 
Inflorescence pilose (hairs lax, pale, 0.2 to 0.4 mm. long). 
15. M. punctata. 
Filaments distinct; corolla densely pilose. 
Calyx lobes apiculate, about 1 mm. long; flowers 5-merou& 
16. M. pubi flora. 
Calyx lobes elongate-triangular, 4 to 7 mm. long; flowers 5 or 6-merous. 
17. M. salapa. 
Anthers produced into two tubules (these usually laterally connate). 
Pedicels and calyx glabrous or essentially so. 
Leaves deltoid — 18. M. eurypliylla. 
Leaves ovate, ovate-lanceolate, or oblong. 
Rachis stout, 10 to 20 cm. long at maturity; flowers large (calyx 10 to 12 
mm. across summit; corolla 7 to 10 mm. in diameter near base; 
stamens 14 mm. long or more); leaves 12 to 25 cm. long. 
19. M. crassa. 
Rachis rarely up to 7 cm. long; flowers smaller than above dimensions; 
leaves seldom up to 15 cm. long. 
Leaves glabrous beneath, variously shaped. 
Bracts at base of Inflorescence numerous, imbricate, oblong-lanceo- 
late, up to 8 mm. long - 20. M. benthamiana. 
Bracts at base of inflorescence few, ovate-deltoid, not more than 4 
mm. long. 
Calyx lobes 5; stamens 10. 
Leaves oblong or ovate-oblong, rarely up to 12 cm. long, the 
veinlets immersed; corolla carnose. 
Tubules about as long as anther sacs or slightly longer (never 
twice as long). 
362 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Leaves oblong-spatulate, attenuate at base. 
21. M, poortmanni. 
Leaves oblong or oblong-ovate, cuneate or rounded at base. 
Pedicels shorter than flowers or subequal; leaves subacute 
or hardly rounded at base. 
Anthers slender, the tubules about 1.5 times as long as 
sacs 22. M. pilgeriana. 
Anthers comparatively stout, the tubules about as long 
as sacs. 
Tubules slightly shorter than anther sues, rarely sub- 
equal (South America) 83. H, nitida. 
Tubules slightly longer than anther sacs, rarely sub- 
equal (Central America) 24. M. glabra. 
Pedicels longer than flowers; leaves rounded at base 
(Santa Marta Mountains) 25. M. robusta. 
Tubules twice at long as anther sacs 20. M. attenuata. 
Leaves oblong-lanceolate, rounded at base, 10 to 15 cm. long, the 
vein lets raised above; corolla soft-car nose 27. M. nervosa. 
Calyx lobes 3 or 4; stamens 6 to 8 28. M. reducta. 
Leaves laxly pale-pilose beneath, broadly ovate, the nerves prominent 
beneath  29. M. ecu&dorensis. 
Pedicels and calyx pubescent or densely farinose. 
Inflorescence short-racemose, laxly pilose; leaves oblong, glabrous or laxly 
pilose beneath (Colombia and Ecuador). 
Calyx robust, the limb 5 to 7 mm. long; lower surface of leaves glabrous 
or essentially so . 30. M. loeseneriana. 
Calyx smaller, the limb up to 4 mm. long; lower surface of leaves laxly 
pilose (glabrous when senescent) 31. M. hlrtiflora. 
Inflorescence subfasciculate, densely and closely farinose; leaves obovate, 
farinose beneath (Peru) 32. M. farlnosa. 
1. Macleania longiflora Lin(11. Bat, Reg. 30: pi. 2~>. 1844. 
Macteania tenuiflora Walp. Report. Bot. 6:415. 1847. 
Low shrub, probably epiphytic; branchlets slender, terete, clothed with 
loose cinereous glabrous bark; petioles rugose, glabrous, 4 to 7 mm. long; leaf 
blades coriaceous, ovate, 6 to 10 cm. long, 2.5 to 5 cm. broad, rounded or broadly 
cuneate at base, acute at apex, entire at margins, glabrous on both surfaces, 
5 to 7 pli-nerved or pinnate-veined from near base, the midveln slightly im- 
pressed above, raised beneath, the secondary veins nearly plane above, 
slightly raised beneath, the veinlets reticulate, plane or obscure; inflores- 
cence axillary, subfasciculate or short-racemose (rachis not exceeding 5 mm. in 
length), 3 to 10 flowered, essentially glabrous in all parts; pedicels rugose, 
7 to 12 mm. long, each subtended by an ovate bractlet about 2 mm. lopg, 
minutely bibracteolate below middle; calyx tube obprismatlc, about 4 mm. 
long and 4 mm, in diameter at anthesis, narrowly winged to sinuses; limb 
3 to 5 mm. long including lobes, the lobes 5, broadly triangular, 1.5 mm. long, 
5 to 6 mm. across; corolla subcylindric, 30 to 40 mm. long, 5 to 7 mm. in 
diameter near base, contracted at the long throat, minutely puberulous or 
glabrous, the lobes about 2 mm. long; stamens 10, equal, 11 to 12 mm. long; 
filaments nigrescent, coherent in a tube, 2.5 to 4 mm. long, glabrous or sparsely 
puberulous at distal margins; anther sacs 5.5 to 7 mm. long; tubule single, 
membranous, elongate-conical, 2.5 to 4 mm. long, opening by a wide introrse 
pore nearly as long; style about as long as corolla, the stigma truncate. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 363 
Type locality : Near Loja, Province of Loja, Ecuador, altitude about 2,500 
meters. Type collection not cited. 
Distribution : Colombia and Ecuador, apparently rare and local in distri- 
bution. 
Colombia. 
Nobte de Santandeb: Diamanta, 1,000 meters, Kalbreyer 1085 (B). 
Ecuador. 
Pichincha: Vicinity of Mount Pichincha, Jameson (K) ; Sodiro 92/2b (B). 
The occurrence of this beautiful plant in northern Colombia is surprising, 
but the Kalbreyer collection is almost certainly conspecific with the Ecuadorian 
specimens. 
92. Macleania macrantha Benth. PI. Hartw. 223. 1846, 
Shrub; branch lets terete, glabrous or puberulous with minute pale hairs; 
petioles stout, 1 to 3 mm. long, winged above; leaf blades coriaceous, ovate, 
4 to 9 cm. long, 1.5 to 4 cm. broad, cuneate at base, obtuse or obtusely acuminate 
at apex, entire and slightly revolute at margins, essentially glabrous above, 
sparsely pubescent beneath with scattered stiff brown hairs about 0.2 mm. 
long, 5 to 7 pH-nerved, the nerves impressed above, prominent beneath, the 
veinlets reticulate, plane; Inflorescence axillary near ends of branchlets, fas- 
ciculate, 2 to 7 flowered, circumscribed at base by numerous imbricate ovate 
bract lets about 3.5 mm. long, the pedicels and flowers densely short-pubescent 
when young (hairs brown, appressed, about 0.2 mm. long), becoming glabrous; 
pedicels rugose, 7 to 12 mm. long, deciduously bibracteolate near base, obscurely 
articulate with calyx; calyx tube obpyramidal, 6 to 7 mm. long and 3 mm, in 
diameter at summit at an thesis, winged to sinuses (wings about 0.5 mm. broad); 
limb 2 to 3 mm. long, the lobes 5, apiculate, 1 mm. long, 3 mm. broad; corolla 
cylindrlc, 27 to 40 mm. long, 4 to 5 mm. in diameter, contracted to a long throat 
3 mm. in diameter, the lobes spreading, about 2.5 mm. long; stamens 10, 11 to 
12 mm. long; filaments glabrous, connate in a tube, about 4.5 mm. long; anther 
sacs 5 to 5.5 mm. long; tubule single, rigid, conical, about 3 mm. long, opening 
by an introrse distal pore about 2 mm. long. 
Type locality : Guayan, western slopes of Mount Pichincha, Province of 
Pichincha, Ecuador. Type collected by Hartweg (no. 1218*). 
Distribution: Andes of southern Colombia and northern Ecuador. 
Colombia. 
Narino: Tuqueres, 2,000 meters, Triana 2708 (K). 
Colombia ok Ecuador: Andri (K); Lobb (K). 
Ecuador. 
Pichincha: Andes near Quito, Jameson 384 (K) ; Coutho-uy (G, Y); Hart- 
weg 1218* (K, type). 
This species is closely allied to the preceding, from which it is marked by the 
reddish puberulence of flowers and leaves. 
3. Macleania floribunda Hook. Icon. PI, 2: pi. 109. 1837. 
Low shrub; branchlets terete, clothed with deciduous cinereous glabrous 
bark; petioles rugose, 3 to 5 mm. long, glabrous; leaf blades ovate, 4 to 6 cm. 
long, 2 to 3 cm. broad, cuneate or subattenuate at base, acute or short acumi- 
nate at apex, entire and narrowly revolute at margins, essentially glabrous 
on both surfaces, 5-pli-nerved, the secondary nerves oriented above base, 
arcuate-ascending, with the midnerve impressed above, prominent beneath, the 
veinlets obscure; inflorescence axillary, the flowers solitary or In small fascicles; 
pedicels rugose, 6 to 7 mm. long, circumscribed at base by several oblong bract- 
lets 2 to 4 mm. long; calyx tube obprismatic, pilose with minute brownish hairs, 
364 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
about 5 mm. long and 8.5 mm. in diameter, narrowly winged to sinuses, the 
wings about 0.8 mm. broad; limb about 3.5 mm. long including lobes, the lobes 
5, apiculate, about 1 mm. long and 3 mm. across; corolla subcylindric, decidu- 
ously pilose without as calyx, lnxly white-pilose within distally, 20 to 22 mm. 
long, about 5 mm. in diameter, the lobes about 2.5 mm. long; stamens 10, 9.5 
to 10 mm. long; filaments castaneous, submembranous, firmly connate in a tube, 
glabrous, about 4 mm. Ions; anther sacs 4 to 4.5 mm. long; tubule single, sub- 
membranous, 2 to 2.5 mm. long, opening by a wide introrse cleft nearly as long; 
stigma truncate. 
Typb locality: Jambrasbamba, Department of Amazonas, Peru. Type col- 
lected by Mathews (no. 1442). 
Distribution: Known only from the type collection. 
Peru. 
Amazonas: Jambrasbamba, Mathews 1442 (K, type). 
This Is the type species of the genus. The name M. fioribunda has from 
time to time been placed on other specimens in herbaria, but I have seen 
no other material which is conspeciflc with the type. 
4. Ma clean! a antioquiae Fedtsch. & Basil. Not. Syst. Herb. Hort. Bot. U. S. S. R. 
6:23. 1926. 
Epiphytic shrub; branchlets terete, subglfibrons; petioles stout (about 1.3 mm. 
in diameter), 2 mm. long, subglabrous, winged nearly to base; leaf blades 
coriaceous, ovate or ovate-lanceolate, 3 to 5 cm. long, 1 to 2 cm. broad, attenuate 
at base, acute or obtuse at apes, entire and slightly recurved at margins, glab- 
rous above, glabrous or sparsely pilose beneath (hairs brown, appressed, about 
0.2 mm. long), pinnate-veined, the midvein impressed above, prominent beneath, 
the secondary veins 2 or 3 to a side, usually oriented near base, arcuate-ascend- 
ing, plane or slightly Impressed above, slightly raised beneath, the veinlets 
reticulate, obscure; inflorescence axillary near ends of branchlets, the flowers 
solitary or in pairs, glabrous or sparsely pubescent with appressed scattered 
pale brown hairs about 0.2 mm, long; pedicels rugose, slender, 4 to 8 mm. long, 
circumscribed at base by several imbricate ovate bractlets about 1.5 mm, 
long, bibracteolate near base, obscurely articulate with calyx; calyx tube 
obpyramidal, about 3 mm. long and 2 mm. in diameter at summit at anthesis, 
winged to sinuses (wings fleshy, about 0.3 mm. broad) ; limb erect, 2.5 mm. 
long, the lobes 5, apiculate, 2 mm. broad; corolla cylindric, 15 to 20 mm. long, 
3 to 4 mm. in diameter, contracted at throat, the lobes 1 to 2 mm. long; stamens 
10, 9 to 10 mm. long; filaments glabrous, connate in a tube, about 4.5 mm. long; 
anther sacs 4 mm. long; tubule single, rigid, conical, 2.5 to 3 mm. long, opening 
by a wide introrse distal cleft 1.5 to 2 mm. long; stigma truncate. 
Type locality: Department of Antioqula, Colombia. Type collection not 
cited. 
Distribution : Andes of Colombia and Ecuador, altitude 1,500 to 3,700 meters. 
Colombia. 
El Valle: Guest a de TocotiL, Western Cordillera, Pittier 770 (N, Y). 
Ecuador: "Andes," Pearce (K). 
The type of this species is not available to me. From the description it 
appears to be more generally pilose than the specimens cited, which nevertheless 
agree well in all other points. 
5. Macleania strlcta A. C. Smith, sp. nov. 
Frutex glaber; laminis ovatis basi cuneatis apice subacutls 5 ad 7 pli-nerviis; 
inflorescentla subfasciculuta; calyce 5-alato, lobis breviter triangularibus; 
.. SMITH—AMERICAN SPECIES OF THIBAUDIEAE 365 
corolla angulata; staminibus aequalibus, fllamentis basl laze coxwatls, tubulo 
unico quam loculis breviore. , 
Shrub; branchlets terete, glabrous, with a loose nigrescent bark; petioles 
nigrescent, subterete, glabrous, 3 to 4 mm. long, narrowly winged above; leaf 
blades coriaceous, ovate, 4 to 8 cm. long, 2.5 to 4.5 cm. broad, cuneate or 
subattenuate at base, bluntly acute at apex, entire and slightly recurved at 
margins, glabrous, 5 to 7 pli-nerved, the secondary nerves oriented near base, 
arcuate, with the midnerve impressed above, prominent beneath, the vein lets 
reticulate, plane on both surfaces; inflorescence axillary, subfaseiculate (rachis 
stout, not exceeding 5 mm. in length), 4 to 15 flowered; pedicels striate, 5 to 9 
mm. long, slender, each subtended by an ovate acute bractlet lesp than 1 mm. 
long, bibracteolate near middle; calyx tube obprismatic, about 2 mm. long and 
2 mm. In diameter at anthesis, narrowly winged to sinuses; limb about 1 mm. 
long including lobes, the lobes 5, acute, less than 1 mm. long; corolla subcylin- 
dric, 5-angled to lobes, about 14 mm. long and 3 mm. in diameter, glabrous with- 
out, sparsely white-tomentose distally within, the lobes triangular, acute, about 
1 mm. long; stamens 10, equal, about 7 mm. long; filaments membranous, 
glabrous, loosely connate at base, 2.5 mm. long; anther sacs 3 mm. long; tubule 
single, membranous, elongate-conical, about 2 mm. long, opening by a wide 
introrse distal cleft about 1.2 mm. long; style filiform, slightly exserted, the 
stigma truncate. 
Type in the U. S. National Herbarium, no. 1,420,322, collected between 
Ricaurte and Plpulquex, Tuquerres, Department of Narino, Colombia, altitude 
1,200 to 1,600 meters, July or August, by F. C. Lehmann (no. 5437). Duplicates 
at B, F, G, K, Y. 
Distribution : Andes of southern Colombia. 
COLOMBIA. 
Nabino: Pasto, Lobb 81 (K). San Pablo, " Piedra ancha," Andri 3297 (K). 
This is a species of the alliance of M. floribunda, most closely related to 
M, angulata, from which it differs by having the corollas shorter and the inflo- 
rescences with more numerous flowers. 
6. Hadeania angulata Hook. Bot. Mag. Curtis 69: pi. 3979. 1848. 
Shrub; branches and branchlets terete, glabrous; petioles subterete, glabrous, 
short; leaf blades coriaceous, ovate, 5 to 8 cm, long, 3 to 4 cm. broad, rounded 
or narrowed at base, obtuse at apex, entire at margins, 5-pii-nerved from near 
base, the midnerve pinnate above; flowers axillary, fasciculate. (usually in 
groups of 3); pedicels 20 to 25 mm. long, bibracteolate near base, swollen 
above; calyx tube obprismatic, narrowly winged to sinuses; limb very short, 
the lobes 5, apiculate; corolla subcylindric, 5-angled, about 20 mm. long or more, 
glabrous; stamens 10; filaments thin-camose, united in a tube; anthers erect, 
the tubule single, opening by a wide introrse cleft about half as long; style 
nearly as long as corolla, the stigma capitate. 
Type locality: Peru. Type a cultivated plant raised from seed collected 
by Maclean. 
I have not seen specimens referable to this species, but from the plate and 
description given by its author its taxonomic position as an ally of M, floribunda 
seems definite. The above incomplete description is drawn up from the 
original one. 
7. Macleania pentaptera Hoer. Bot. Jahrb. Engler 42:299. 1909. 
Climbing or epiphytic shrub; branches and branchlets terete, glabrous (young 
parts sometimes sparsely puberulous), brownish; petioles thick, about 3 mm. 
long, glabrous, rugose; leaf blades coriaceous, ovate, 8 to 12 cm. long, 4 to 7 cm. 
366 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
broad, glabrous, strongly cordate at base, sometimes amplexicaul, rounded or 
subacute at apex, entire, plane or sllglitly revolute at margins, pinnate-veined, 
the secondary veins 3 or 4 to a aide, arcuate-ascending, usually oriented near 
base, with the mid vein slightly impressed above, prominent beneath, the veinlets 
copiously reticulate, sllgbtly raised on both surfaces; Inflorescence axillary, 
short-racemose, 3 to 8 flowered; rachis up to 4 cm. long; pedicels 12 to 18 mm. 
long, rugose, glabrous or minutely puberulous, deciduously bibracteolate near 
middle (bractlets ovate, less than 1 mm. long), swollen distally and obscurely 
articulate with calyx; calyx obconieal, glabrous or minutely puberulous distally, 
10 to 13 mm. long, about 6 mm. in diameter at base of lobes, narrowly 5-winged 
to sinuses (wings fleshy, about 0.5 mm. broad, each continuing beyond margin 
of calyx to form a coriaceous spur), the limb dilated, minutely G lobed, the lobes 
apiculate, often suppressed; corolla scarlet, green distally, coriaceous, cylindric, 
13 to 20 mm. long, about 5 mm. in diameter, slightly contracted at throat, 
glabrous without, densely tomentose within towards apex with pale tangled 
hairs up to 0.5 mm. long, the lobes erecto-patent, elongate-triangular, acute, 
about 3 mm. long and 1.5 mm. broad at base, frequently each with a 
perpendicular fleshy oblong apiculate spur; stamens 10, nearly as long as 
corolla; filaments glabrous, connate in a tube, about 3 mm. long; anther sacs 
5 to 7.5 mm. long; tubule single, elongate-conical, 3 to 5.5 mm. long, opening by 
a wide introrse cleft about half as long; style often slightly exserted, the 
stigma truncate. 
Type locality : Slopes of Mount Corazftn, near Miligolly, Province of Pichin- 
cha, Ecuador. Type collected by Sodiro (no. 92/2). 
Distribution: Western Cordillera of Colombia and northern Ecuador. 
Colombia: Along Pacific coast, Seenwnn 1079 (K). 
El Valle: Buenaventura and vicinity, near sea level, EUlip 5329 (B, N, Y); 
Triana 2712 (K, Y), 2713 (K); Pittier 588 (N). 
Ecuador: Seemann (G, K). 
Fichincha: Slopes of Mount Coraz6n, near Milligolly, Sodiro 92/2 
{B, type). 
With the exception of the type, all the above-cited specimens are described 
as growing in mangrove swamps at sea level, a habitat unique among Thibau- 
dieae. The calyces have wings so strongly developed that the actual lobes are 
quite obscured, a condition suggested by M. cordifolia, etc., but never approached 
except in the present species. The presence of spurs on the corolla lobes is a 
more variable character; the type specimen has them very obscure, but in the 
material from the Dagua Valley of Colombia they are prominent. In leaf 
characters the above-cited specimens are fulrly constant; the greatest variation 
is found in the Seemann specimen from Colombia, which has the leaves decidedly 
narrowed. 
8. Macleania rotundlfolla Sod, & Hoer. Bot. Jahrb. Engler 42: 300. 1909. 
Shrub; branchlets terete, violaceous, minutely pale-puberulous or glabrous; 
petioles subrugose, essentially glabrous, 1 to 2 mm. long, stout; leaf blades 
broadly ovate or suborbicular, 7 to 10 cm. long, 5 to 8 cm. broad, cordate and 
subamplexicaul at base, rounded or obtuse at apex, entire at margins, glabrous, 
subcorlaceous, 7 to 9 pi i nerved, the lower pairs of secondary nerves spreading, 
the upper pair ascending, with the midnerve slightly impressed or plane above, 
raised beneath, the veinlets reticulate, slightly raised on both surfaces; 
inflorescence axillary, short-racemose, minutely pale-puberulous or glabrous on 
all external surfaces, 6 to 8 flowered; rachis striate, about 2 cm. long; pedicels 
rugose, 8 to 12 mm. long, each subtended by an oblong bractlet about 2 mm. 
. t ip. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 367 
long; calyx tube obprismatic, about 4 mm. long and 4 mm. in diameter at 
anthests, 5-angled or narrowly winged to sinuses; limb 2 to 3 mm. long includ- 
ing lobes, the lobes 5, minutely apiculate, about 3 mm. broad; corolla sub- 
cylindric, 20 to 22 mm. long, 5 to 6 mm. in diameter, white-tomentose within 
dlstally, the lobes about 2 mm. long; stamens 10, equal, 9.5 to 10 mm. long; 
filaments submembranous, firmly connate in a tube, 4 mm. long; anther sacs 3.5 
to 4 mm. long; tubule single, submembranous, 2.5 to 3 mm. long, opening by a 
wide introrse pore about half as long; style as long as corolla, the stigma 
truncate. 
Type locality : Near Ito-Muby, Ecuador, Type collected by Sodlro (no. 
92/1). 
Distribution : Known only from the type collection. 
Eoiudob: Near Ito-Muby, Sodiro 92/1 (B, type). 
9. Maclfeania amplexicaulis A. G. Smith, sp. nor. 
Frutex subglaber; laminis late ovatis breviter petiolatis basi cordatis amplexi- 
caulibusque apice rotundatis; inflorescentia subfasciculata; calyce 5-alato, lobis 
elongato-trlangularlbus; corolla subcylindrica intus superne tomentosa; stamin- 
ibus aequalibus, fllamentis glabris basi connatis, tubulo unico quam loculis 
paullo brevlore. 
Shrub; branchlets subterete, with a loose brownish puberulous bark; petioles 
very short (less than 1 mm. long, the leaves practically sessile); leaf blades 
broadly ovate, strongly amplexicaul, 5 to 9 cm. long, 4 to 8 cm, broad, strongly 
cordate and overlapping at base, rounded at apex, entire or faintly crenulate 
at margins, glabrous, 7 to 13 nerved, the first 2 or 3 pairs oriented from the 
midnerve near its base, the remaining secondary nerves spreading from the 
base, with the midnerve plane above, prominent beneath, (he veinlets reticulate, 
plane on both surfaces; inflorescence axillary, subfasciculate, 2 to 5 flowered, 
bracteate at base with a few subpuberuloua ovate bracts up to 2 mm. long; 
pedicels striate, 6 to 8 mm. long, glabrous; calyx tube about 2.5 mm. long 
and 2.5 mm. in diameter at an thesis, narrowly 5-wlnged to sinuses; limb spread- 
ing, about 2.5 mm. long including lobes, the lobes 5, elongate-deltoid, about 
2 mm. long; corolla subcylindric, about 18 mm. long and 4 mm. in diameter, 
contracted above, glabrous without, densely white-tomentose dlstally within, 
5-lobed, the lobes elongate-deltoid, about 2 mm. long; stamens 10, equal, 11 
to 12 mm. long; filaments membranous, glabrous, connate in basal half, about 
2.5 mm. long; anther sacs about 5 mm. long, Incurved at base; tubule single, 
membranous, elongate-conical, about 4.5 mm. long, opening by a wide introrse 
distal cleft about 2 mm. long; style filiform, about as long as corolla, the 
stigma truncate. 
Type in the herbarium of the New York Botanical Garden, collected on hill- 
side west of Rio San Joaquln, La Galera, Micay Valley, Department" of El 
Cauca, Colombia, altitude 1,200 to 1,400 meters, June 29, 1922, by E. P. Killip 
(no. 7886). Duplicate in U. S. National Herbarium. 
Distribution : Known only from the type collection. 
This species is closely related to M. rotundifolia, from which it differs by 
having the inflorescence subfasciculate rather than racemose and the calyx 
lobes longer. 
EXPLANATION of PLATE 8.—Macleanta ampleaicaujia, from photograph of type sheet. 
About one-half natural size. 
10. Macleania ovata Klotzsch, Llnnaea 24:20. 1851. 
Shrub, probably epiphytic; branchlets terete, cinereous, glabrous; petioles 
stout, 1 to 2 mm. long, glabrous; leaf blades thick-coriaceous, oblong or 
84377—32 5 
I 
368 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
ovate, 2 to 4.5 cm. long, 1 to 2.5 cm. broad, rounded or subcordate at base, 
obtuse at apex, entire and slightly revolute at margins, glabrous and sparsely 
punctate above, glabrous beneath, 5 to 7 pli-nerved, the nerves oriented above 
base, slightly impressed nbove, prominent beneath, the veinlets reticulate, 
obscure; inflorescence axillary, fasciculate, 4 to 7 flowered; pedicels rugose, 
stout, 4 to 8 mm. long, glabrous, circumscribed at base by several ovate 
puberulous bractlets 2 to 4 mm. long, bibracteolate near base, obscurely 
articulate with calyx; calyx tube glabrous, obpyramidal, 3 to 5 mm. long and 
3 mm. in diameter at summit at anthesis, winged to sinuses (wings 0.5 mm. 
broad); limb erect, 2 to 5 mm, long including lobes, the lobes 5, subacuminate, 
I.5 to 2 mm. long and 3 mm. across base; corolla orange-red, cylindric, 
glabrous or slightly pubescent towards apex, 21 to 25 mm. long, 4 mm. in 
diameter, contracted at the elongate throat, slightly 5 angled (angles terminat- 
ing in lobes), the lobes spreading, about 2.5 mm. long, white-pubescent within; 
stamens 10, about 10 mm. long; filaments glabrous, connate in a tube, about 
4 mm. long; anther sacs 4 to 4.5 mm. long; tubule single, rigid, conical, 
2.5 to 3 mm. long, opening by an introrse elongate cleft 1 to 1.5 mm. long; 
stigma peltate. 
Type locality: Veraguas, Panama. Type collected by Warszewicz. 
Distribution : Costa Rica and western Panama, altitude 1,400 to 1,500 
meters. 
Costa Riga: Lankester K79 (K). Pacayas, WercklG 16650 (N). 
Cabtago: El Mufieco, on Rio Navarro, Standley & Torres 50883 (N). . 
Panama: Veraguas, Warszeicicz (B, type). 
Among the four specimens cited there is considerable variation, and possibly 
the single feature of the calyx, as described in the key, is not sufficient 
to give them specific unity. The leaves of the Costa Rlcan specimens are 
somewhat larger than those of the type, and of the Werckl6 specimen more 
obviously punctate, but in view of the wide leaf variation throughout the genus 
the similarity in calyces seems a more constant character. 
II. KCadeania linearifolia (Donn. Smith) A. C. Smith. 
Macleania cordata Lem. var. linearifolia Donn. Smith, Bot. Gaz. 16:12. 
1891. 
Shrub; branchlets subterete, subglabrous, with a brown deciduous bark; 
petioles rugose, 3 to 4 mm. long; leaf blades lanceolate-oblong, 8 to 12 cm. long, 
1 to 2 cm. broad, rounded at base, acute at apex, entire at margins, glabrous, 
5-pli-nerved, the midnerve impressed above, prominent beneath, the secondary 
nerves oriented near base, ascending near margins, slightly raised on both 
surfaces, the veinlets copiously reticulate, raised on both surfaces; flowers 
axillary, solitary or In pairs, glabrous; pedicels rugose, 8 to 10 mm. long, 
bibracteolate near base with ovate acute Ambulate bractlets about 1.5 mm. 
long; calyx tube obprismatic, about 4 mm. long and 4 mm. in diameter at 
anthesis, winged to sinuses; limb about 2.5 mm. long including lobes, the lobes 
5, apiculate, about 0.5 mm. long; corolla eylindric-urceolate, about 22 mm. long, 
4 to 5 mm. in diameter, contracted at throat, white-tomentose distally within, 
the lobes acute, about 1.5 mm. long; stamens 10, 8 to 9 mm. long; filaments 
glabrous, connate, about 3 mm. long; anther sacs 4 to 4,5 mm, long; tubule 
single, cylindric-conical, about 2.5 mm. long, opening by a wide introrse cleft 
about half its length; style about 25 mm. long, the stigma peltate. 
Type locality : PansamalA, Department of Alt a Verapaz, Guatemala, altitude 
about 1,200 meters. Type collected by von Tuerckheim (no. 1332), 
Distribution : Known only from the type collection, 
SMITH—AMERICAN SPECIES OP THIBAUDIEAE 369 
Guatemala. 
Alta Vebapaz: Pansamalfi, von Tuerckheim 1332 (N, type). 
The narrowly linear leaves of tills plant seem to mark it specifically from 
M. inaiffnis, in view of the fact that there are apparently no intergrading forms. 
12. Macleania eompacta A. O. Smith, sp. nor. 
Frutex compactus glaber; la minis ovatis breviter petiolatis basi subcordatis 
aplce obtusis 5-pli-nerviis; inflorescentia fascieulata pauciflora; pediceliis 
brevibus; calyce anguste 5-alato, lobis apiculatis; corolla cylindrica; stamlnlbus 
aequalibus, filamentis connatis, tubulo unico qu&m loculls paullo breviore. 
Shrub; branch!ets terete, glabrous; petioles terete, stout (about 1.5 mm. in 
diameter), 2 mm. long, glabrous; leaf blades thick-coriaceous, ovate, 3 to 4 cm. 
long, 2 to 3 cm. broad, cordate or subcordate at base, rounded or obtuse at apex, 
entire, thickened, and slightly revolute at margins, glabrous, 5-pIi-nerved, the 
nervts oriented above base, plane or slightly raised above, raised beneath, the 
veinlets reticulate, raised above, plane beneath; inflorescence axillary near 
ends of branchlets, fasciculate, 1 to 3 flowered, the flower parts glabrous; 
pedicels subterete, stout <1.2 mm. in diameter), 3 to 4.5 mm. long, bibracteolate 
near base (bractlets minute, ovate, 0.7 mm. long), encircled at summit by several 
deciduous minute cartilaginous teeth about 0.1 mm. long; calyx tube obpyrami- 
dal, about 3 mm. long and 3 mm. in diameter at summit at anthesis, winged to 
sinuses, the wings fleshy, about 0.3 mm. wide; limb suberect, 2 mm. long includ- 
ing lobes, the lobes 5, apiculate, less than 1 mm. long; corolla cylindric, 15 to 
16 mm. long, 4 mm. in diameter near base, contracted distally, the lobes about 
1.5 mm. long; stamens 10, about 6.5 mm. long; filaments glabrous, connate in a 
tube, about 2 mm. long; anther sacs 3 mm. long; tubule single, rigid, conical, 2 
mm. long, opening by an introrse elongate cleft about half its length; style about 
as long as corolla. 
Type in the Gray Herbarium, collected at Barranca of Texolo, near Jalapa, 
State of Veracruz, Mexico, altitude about 1,100 meters, May 22, 1890, by 
O. G. Pringle (no. 7870). 
Distribution : Known only from the type collection. 
This plant seems to merit specific recognition on the strength of the char- 
acters pointed out in the key; it differs from M. inHgnis in its small flowers 
and particularly in its short pedicels, but in leaf character is essentially similar. 
13. Macleania insignia Mart. & Gal. Bull. Acad. Sci. Brux. 9; 531. 1842. 
Thibaudia laurifolia Mart. & Gal. Bull. Acad, Sci. Brux. 9:530. 1842. 
Macleania cordata Lem. El. Serr. Jard. I. 4: 312. 1848. 
tBiramia tuberosa Auct.; Walp. Ann. Bot. 1:478. 1849. 
Macleania colorata Klotzsch, Linnaea 24: 68. 1851. 
Macleania tuberosa Niedenzu, Bot. Jahrb. Bugler 4.1:224. 1889, nomen. 
Thibaudia tuberosa Leibold; Niedenzu, Bot. Jahrb. Engler 11:224. 1889, 
as synonym. 
Shrub up to 4 meters high; branchlets terete, dark brown, with a deciduous 
subpuberulous bark; petioles subterete, glabrous, about 2 mm. long; leaf blades 
ovate, 3 to 8 cm. long, 1.5 to 4 cm. broad, subcordate at base, obtuse or subacute 
at apex, entire and slightly revolute at margins, glabrous, B-pll-nerved, the 
secondary nerves oriented near base, ascending, with the midnerve slightly 
impressed above, raised beneath, the veinlets reticulate, plane on both sur- 
faces; inflorescence axillary, subfasciculate, 2 or 3 flowered, circumscribed at 
base by a few minute ovate flmbrlate bractlets; pedicels rugose, 8 to 15 mm. 
long, glabrous, bibracteolate near base with ovate bractlets up to 2 mm. long; 
370 CONTRIBUTIONS FBOM THE NATIONAL HERBARIUM 
calyx tube glabrous, obprismatic, about 4 mm. long and 4 mm. in diameter 
at antliesis, winged to sinuses; limb about 2.5 mm. long including lobes, the 
lobes 5, apiculate, 1,5 mm. long; corolla elongate-urceolate, 20 to 25 mm. long 
and about 5 mm. in diameter, contracted at throat, glabrous or faintly puber- 
ulous without, sparsely tomentose distally within, the lobes acute, about 1.5 
mm. long; stamens 10, 9 to 12 mm. long; filaments castaneous, glabrous, firmly 
connate, 3.5 to 5 mm. long; anther sacs 4 to 5 mm. long; tubule single, cylindric- 
conical, 2 to 2.5 mm. long, opening by a wide introrse cleft more than half its 
length; style exserted in mature flowers, the stigma peltate. 
Type locality: Mirador, State of Veracruz, Mexico. Type collected by 
Galeotti (no. 1827, in part). 
Distribution : Mountains of southern Mexico and Guatemala, altitude 1,000 
to 1,800 meters. 
Mexico: Leibold 23 <B, type of M. tuberosa); Sartorius (B); Schafiner 538 
(B); Mueller (Y). 
Veracruz: Mirador, Galeotti 1827 (K, type coll.); Purpm 288 (B); 
Liebmttnn 8643 (Y), S645 (N). Canton de C6rdoba, Conzatti 167 (G). 
Zacuapfln, Purpus 6313 (F, G, Y). Orizaba, Botteri 614 (G). 
Oaxaoa: Llano Verde, Galeotti 1827 (B). Chinantla, Galeotti 1814 (B, N, 
type collection of Thihaudia laurifolia). " Sierra," Galeotti 1840 (N). 
Guatemala. 
Alta Vebapaz: Cob&n, von Tucrckhsim II. 1661 (N). Finca Sepacuitfe, 
CooJe & Griggs 435 (N). Samac, Johnson 292 (N). 
Baja Vkrapaz: Santa Rosa, von Tuerckheim II. 2153 (F, G, N, Y), 
1190 (B, G, N). Purulbfi, Popenoe 927 (N). 
This species is the common Central American one in the single-tubuled group 
of Macleania. M. ins ignis and M. cordata have long been retained as distinct 
species, but study of the above series of specimens fails to reveal any constant 
distinctions. The flowers are identical on all specimens, and the leaf measure- 
ments are without value. The fact that the author of M. cordata did not men- 
tion M. insignia In his description, but compared his plant with M. longiflora 
and M. cordifolia, indicates that he was unaware of the earlier name. The 
type of M. cordata, which I have not seen, was a cultivated plant introduced 
into Europe by Ghiesbreght, presumably from Mexico. 
14. Macleania cordifolia Edith. PI. Hartw. 223. 1846. 
Macleania speovogissima Hook. f. Bot. Mag. Curtis 90: pi. 5453. 1864. 
Low shrub; branchlets pale brown, terete, glabrous; petioles rugose, glabrous, 
2 to 5 mm. long; leaf blades ovate or ovate-oblong, 4 to 10 cm. long, 2 to 5 cm. 
broad (rarely larger), subcordate at base, obtuse or subacute at apex, subentiro 
and slightly thickened at margins, glabrous, sparsely punctate above, 5 to 
7 pli-nerved, the secondary nerves oriented above base, arcuate-ascending, with 
the midnerve plane above, raised beneath, the veinlets copiously reticulate, 
slightly raised on both surfaces; inflorescence axillary, short-racemose, 4 to 
10 flowered, the rachis rugose, up to 1 em. long; pedicels rugose, swollen 
distally, glabrous, 8 to 15 mm. long, each subtended by an ovate acute bractlet 
up to 2 mm. long, bibracteolate near base; calyx tube obprismatic, glabrous, 
3 to 5 mm, long and 4 mm. in diameter at anthesls, broadly winged to sinuses; 
limb about 2.5 mm. long including lobes, the lobes 5, apiculate, less than 1 mm. 
long; corolla cylindric, 14 to 25 mm. long, about 4 mm. in diameter, contracted 
above, glabrous without, densely white-pubescent distally within, the lobes 
about 2 mm, long; stamens 10, 9 to 11 mm. long; filaments coherent, about 
2.5 mm. long, puberulous; anther sacs 3.5 to 6 mm. long; tubule single, broadly 
SMITH—AMERICAN SPECIES 07 THIBAUDIEAE 371 
cylindric-conical, 4 to 5 mm, long, opening by a wide introrse deft about half 
its length; style about as long as corolla, the stigma truncate. 
Type locality : Hacienda de Iravf, near Perucho, Province of Pichincha, 
Ecuador. Type collected by Hartweg (no. 1218), 
Distribution: Andes of Ecuador (and Colombia?), 
Colombia?: Linden (K, type of M. gpeciosiesima). 
Ecuador. 
Pichincha: Hacienda de Iravf, near Perucho, Hartweg 1218 (B* K, type). 
Chimbobazo : Foot of Mount Chimborazo, 900 meters, Spruce 6168 (K). 
Cultivated plants : Origin unknown but possibly from the Hartweg collec- 
tion (B, G, K, Y). 
This species has been cultivated in botanical gardens and in private green* 
houses, but I have not been able to ascertain from what collector the original 
plant was obtained. Like all others of the genus, it makes a very showy plant 
for cultivation. 
15. Macleania punctata Hook. Bot. Mag. Curtis 75: pi. 4426. 1849. 
Low shrub; branchlets subterete, brownish, sparsely puberulous, becoming 
glabrous; petioles sub rugose, 3 to 4 mm. long, sparsely puberulous or glabrous; 
leaf blades coriaceous, ovate or ovate-oblong, 5 to 7 cm. long, 2.5 to 4 cm, broad, 
truncate or lightly subcordate at base, acute or obtuse at apex, entire and 
slightly recurved at margins, essentially glabrous and sparsely punctate above, 
deciduously puberulous on nerves beneath, 7-pll-nerved, the secondary nerves 
oriented above base, ascending, with the midnerve nearly plane above, raised 
beneath, the veinlets reticulate, slightly raised or plane on both surfaces; in- 
florescence axillary, short-racemose, 5 to 10 flowered, pilose on all exterior 
surfaces with pale spreading hairs about 0.5 mm. long, becoming essentially 
glabrous; rachis about 5 mm. long; petioles striate, 12 to 20 mm. long, bracteate 
at base and bibracteolate slightly above middle (bractlets lanceolate-oblong, 
about 2 mm, long), swollen distally; calyx narrowly winged to sinuses, the 
tube obprismatlc, 6 mm. long and 4 to 5 mm. in diameter at summit at anthesls, 
the limb 2 to 3 mm. long including lobes, the lobes 5, apiculate, about 4 mm. 
broad, submembranous at margin; corolla subcylindric, about 22 mm. long, 5 
to 6 mm. in diameter, wliite-tomentose within distally, the lobes about 1.5 mm. 
long; stamens 10, about 12 mm. long; filaments dark castaneous, 3 to 4 mm. 
long, connate, glabrous; anther sacs 5 to 6 mm. long; tubule single, 4 mm. long, 
opening by a wide introrse cleft nearly as long; stigma subpeltate. 
Type locality: "Andes of Ecuador." Type a cultivated plant, originally 
collected by Lobb. 
Distribution : Andes of northern Ecuador, altitude 2,500 to 3,000 meters. 
Ecuador: Lobb (K, type). 
Pichincha: Western side of Mount Pichincha, Jameson 82 (E). Pulu- 
laqua, Jameson (K). Andes of Quito, Jameson (K). 
This is a species well marked by the pubescence of its inflorescence, but the 
punctation of the leaves is somewhat obscure and variable, as it is throughout 
the genus. 
15a. Macleania punctata Hook. var. puberula Danguy & Cherm. Bull Mus. 
Hist. Nat. 28; 434. 1922. 
Typb collection : Rivet 520, Dana s, Ecuador. 
I have not seen the type of this variety, which is mentioned as being more 
puberulous than the species, with thinner leaves. 
372 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
16. Macleanla pubiflora Benth. PL Hartw. 224. 1846. 
Low shrubs; branchlets stout, terete, densely puberulous with brownish 
spreading hairs up to 0.2 mm. long; pedicels subterete, 5 to 10 mm. long, pub- 
erulous or glabrescent, winged above; leaf blades ovate or slightly obovate, 6 
to 8 cm. long, 2 to 3 cm. broad, cuneate or subattenuate at base, obtuse or 
subacute at apex, entire and slightly thickened at margins, glabrous above, 
pale puberulous beneath, becoming glabrous, pinnate-veined, the secondary veins 
2 or 3 to a side, ascending, oriented from the midvein in the basal half, with 
the midvein impressed above, prominent beneath, the veinlets obscurely re- 
ticulate; inflorescence axillary, subfasciculate, 3 to 5 flowered; pedicels sub- 
terete, 0 to 10 mm. long, pale-pubescent {hairs spreading, up to 0.3 mm. long), 
bibracteolate at middle with acute, partially fused, involucrate, pubescent 
bractlets up to 2 mm. long, swollen distally; calyx tube subcylindric, about 2.5 
mm. long and 2 mm. in diameter at antbesis, densely white-pubescent; limb 
spreading, 3 to 4 mm. long including lobes, the lobes 5, apiculate, about 1 mm. 
long; corolla cylindric-urceolate, 17 to 18 mm. long, 5 to 6 irrm. in diameter at 
base, about 3 mm. in diameter at throat, pubescent without, especially distally, 
with pale spreading hairs up to 0.5 mm. long, glabrous within, the lobes acute, 
about 2 mm. long; stamens 10, about 10 mm. long; filaments nigrescent, glab- 
rous, free, 3 to 4 mm. long; anther sacs incurved at base, 5.5 to 6 mm. long; 
tubule single, narrowly cylindric-conical, 2.5 mm. long, opening by a short 
oval introrse deft, the medial partition sometimes present to tip; stigma 
truncate. 
Type locality: Hacienda de Ilato Frlo, "Prov. Popayan," Department of 
El Cauca, Colombia. Type collected by Hartweg (no, 1222). 
Distribution: Andes of southern Colombia, altitude 2,400 to 3,000 meters. 
Colombia. 
El Cauga: Hacienda de Hato Frlo, Hartweg 1222 (K, type). San Jos£, 
near San Antonio, Pennell 7596 (B, G, N, Y). P&ramo de Achupallas, 
Triana 2672 (B, K). 
With the following species this forms a distinct group of Macleanla with 
pilose flowers, distinct filaments, single tubules, and a tendency toward elongate 
calyx lobes. The last character is notable, however, only in if. salapa. 
17. Macleanla salapa (Benth.) Benth. & Hook. Gen, PL 2:566. 1876. 
Ceratoatcma salapa Bentli. Pl. Hartw. 141. 1844. 
Tyria salapa Klotzsch, Linnaea 24: 21. 1851. 
Shrub; branchlets subterete, slightly puberulous when young, becoming 
glabrescent and nigrescent; petioles 3 to 4 mm. long, glabrous, narrowly 
winged; leaf blades obovate, 3 to 4 cm. long, 1.5 to 2 cm. broad, cuneate at 
base, obtuse or subacute at apex, entire or faintly crenulate and slightly 
revolute at margins, glabrous, pinnate-veined, the midnerve slightly impressed 
above, prominent beneath, the secondary veins 2 or 3 to a side, oriented from 
the midnerve near base, arcuate-ascending, slightly impressed or plane above, 
slightly elevated beneath, the veinlets obscure; inflorescence axillary toward 
ends of branchlets, subfasciculate, 2 to 4 flowered, circumscribed at base by 
a few triangular puberulous bractlets about 2 mm. long; pedicels 3 to 5 mm, 
long, densely pilose with pale spreading hairs about 0.2 mm. long, bibracteolate 
toward base with lanceolate-triangular bractlets about 3 mm. long, obscurely 
articulate with calyx; calyx tube obprismatic, about 2 mm. long and 3 mm. 
In diameter at summit at antbesis, narrowly 5 or 6 winged to sinuses, pilose 
as the pedicels; limb about 8 mm. long including lobes, the lobes 6 (frequently 
5), lanceolate, acute, 7 mm. long, 2 to 2.5 mm. across base, sparsely white- 
pilose on both surfaces, ciliate at margins with short stiff brown hairs; corolla 
SMITH—AMERICAN SPECIES OF THIBATXDIBAE 373 
subcylindrlc, 6 (or 5) angled, about 15 mm. long, 4 mm. in diameter, con- 
tracted above, pilose as the pedicels, 6 (or 5) lobed, the lobes spreading, about 
1.5 mm. long; stamens 12 (or 10), 7.5 to 9 mm. long; filaments free, 0.5 to 
2 mm. long, glabrous, mahogany-colored, narrowed above; anther sacs 3.5 
to 4 mm. long, incurved at base; tubules partially united, erect, elongate- 
conical, about 3 mm. long, opening by distal introrse elongate pores up to 
2 mm. long; style about as long as corolla, the stigma peltate. 
Type ijOcality : Loja, Province of Loja, Ecuador. Type collected by Hart- 
weg (no. 784). 
Distribution : Andes of Ecuador, possibly limited to the region around Loja. 
Ecuador: Andrt 4340 (K) ; Seemann (K). 
Loja; Loja, Harticeg 784 (B, K, type, Y). 
18. Macleania euryphylla Blake, Jour a Washington Acad. Sci. 14:291. 1924. 
Shrub; branchlets stout, cinereous, subterete, pale-pubescent when young 
with spreading hairs up to 0.4 mm. long; petioles rugose, narrowly winged, 
puberulous, 5 to 7 mm. long; leaf blades deltoid-ovate, 5 to 7 cm. long, 4 to 5 
cm. broad, truncate at base, rounded at apex, entire and slightly revolute at 
margins, glabrous, obscurely punctate above, pinnate-veined, the secondary veins 
3 to a side, oriented near base, spreading, with the midvein plane above, promi- 
nent beneath, the veinlets reticulate, slightly raised on both surfaces; in- 
florescence axillary, subfasciculate, 5 to 20 flowered, circumscribed at base by 
numerous broadly ovate, fimbriate bractlets up to 4 mm. long; pedicels sub- 
terete, glabrous, 6 to 9 mm. long, bibracteolate near base; calyx tube obconical, 
about 3 mm. long and 3 mm. in diameter at anthesis, glabrous or faintly 
puberulous; limb 2 to 2.5 mm. long including lobes, the lobes 5, apiculate, 
about 1 mm. long; corolla cylindric-urceolate, 14 to 15 mm. long and 5 mm. in 
diameter, contracted at throat, glabrous, the lobes acute, about 1.5 mm. long; 
stamens 10, about 9 mm. long; filaments free or slightly coherent at base, 
about 2.5 mm. long, pilose at margins distaJiy with hairs up to 0.5 mm. long; 
anther sacs 3 to 4 mm. long; tubules laterally connate, cylindric-conical, 
3 to 4 mm. long, opening by a more or less fused cleft about half their length; 
style stout, slightly exserted, the stigma peltate. 
Type localitt: Cusatagua, near Ambato, Province of Tunguragua, Ecuador. 
Type collected by Pachano (no. 179). 
Distribution : Known only from the type collection. 
Ecuador. 
Tunotieaoua: Cusatagua, near Ambato, Pachano 179 (N, type). 
This species is distinct in its peculiar deltoid leaves, which are broadest 
very near the base, and is also characterized by short crowded axillary in- 
florescences. Local name: " Sagalita." 
19, Macleania crassa A. G. Smith, sp. nov. 
Frutex crassus; petiolis rugosis crassis; lamlnis oblongis basi rotundatis 
vel cuneatis apice subacutis pinnatinerviis, nervis subtus prominentlbus; 
inflorescentia longe racemosa, rhachidibus crassis; calyce breviter cylindrico, 
limbo lato 5-lobato; corolla, cylindrico-urceolata carnosa-coriacea 5-lobata; 
staminibus aequalibus, fllamentis carnosis distinctls glabris, loculis granu- 
latissimis, tubulis lateraliter connatls quam loculis paullo brevioribus. 
Stout shrub; branchlets stout, angled, glabrous; petioles rugose, 12 to 20 mm. 
long, up to 5 mm. in diameter, glabrous, narrowly winged above; leaf blades 
oblong, 10 to 25 cm. long, 4 to 9 cm. broad, rounded or cuneate at base, acute 
or obtuse at apex, entire and slightly revolute at margins, glabrous, sparsely 
punctate above, pinnate-veined, the midvein stout, slightly raised above, very 
374 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
prominent beneath, the secondary veins 4 or 5 to a side, arcuate-ascending, 
slightly impressed above, prominent beneath, the veinlets reticulate, plane 
above, slightly raised beneath; inflorescence terminal or axillary near ends 
of branchlets, racemose; rachis stout (up to 7 mm. In diameter), sub- 
terete, glabrous, 10 to 25 cm. long; pedicels subterete, stout (about 3 mm. 
in diameter), 12 to 25 mm. long, glabrous, 1 or 2 per centimeter of rachis, 
sometimes subtended by leaflike bracts up to 8 cm. long, bibracteolate near 
middle with ovate rounded bractlets up to 4 mm. long, swollen distally; calyx 
tube short-cyllndrlc, about 4 mm. long and 5 mm. in diameter at anthesis, 
glabrous; limb spreading, 6 to 7 mm. long including lobes, the lobes 5, ovate, 
acute, thick-margined except at the aplculate tip, 4 to 5 mm. long (two some- 
times partially fused); corolla cylindric-urceolate, 18 to 25 mm. long, 7 to 10 
mm. In diameter at base, contracted at throat, thick-carnose, glabrous, 5-lobed, 
the lobes triangular, acute, 2 to 3 mm. long; stamens 10, equal, 14 to 15 mm. 
long In mature flowers; filaments nigrescent, thick, free, 2 to 3 mm. long, 
glabrous; anther sacs strongly granular, stout (up to 2 mm. in diameter), 7 
to 9 mm. long; tubules laterally connate, cylindric-conical, 5 to 6.5 mm. long, 
opening by introrse frequently fused clefts more than half their length; style 
stout, up to 1 mm. in diameter, shorter than corolla, the stigma truncate. 
Type in the U. S, National Herbarium, no. 1,143,639, collected in shrub zone 
on Mount Santa Ana, Department of El Cauca, Colombia, altitude 2,700 to 3,000 
meters, June 29 or 30, 1922, by F. W. Pennell (no. 7465). Duplicates at 
B, G, X. 
Disthibution : Andes of southwestern Colombia. 
This plant is larger in every respect than other species of Macleania known 
to me, and is unmistakable in aspect. Possibly a plant collected by Lehmann 
(no. 5962) near Popayfln, deposited at Kew, should be included here. 
20. Macleania benthamiana Walp. Repert. Bot. 8:415. 1847. 
Maoteania fioribunda Benth. Pl. Hartw. 141. 1844, not Hook. 1837. 
Macleania popenoei Blake, Proc. BIol. Soc. Washington 35:122. 1922. 
Macleania multibracteata Mansf, Notizbl. Bot. Gart. Berlin 9:436. 1925. 
Subscandent shrub 3 to 5 meters high; branchlets brownish, glabrous, 
subterete, stout; petioles rugose, glabrous, 6 to 20 mm. long, winged above; 
leaf blades oblong or ovate-oblong, 7 to 18 cm, long, 3 to 5 cm. broad, attenuate 
at base, obtuse or sub a cute at apex, subentire and revolute at margins, glabrous, 
dark-punctate above, pinnate-veined, the secondary veins 2 to 4 to a side, 
oriented near base, ascending, with the midvein slightly impressed above, 
prominent beneath, the veinlets reticulate, plane on both surfaces; Inflorescence 
axillary, subfasciculate, 8 to 20 flowered, circumscribed, at base by numerous 
imbricate oblong*lanceolate bractlets up to 8 mm. long; pedicels subterete, 
glabrous, 6 to 10 mm. long, bibracteolate near base with oblong flmbriate bract- 
lets about 3 mm. long, swollen distally; calyx tube obconical, glabrous, about 
2,5 mm. long and 3.5 mm. in diameter at summit at anthesis; limb spreading, 
2 to 3 mm. long including lobes, the lobes aplculate, about 1.5 mm. long, thin- 
margined ; corolla cylindric-urceolate, 12 to 15 mm. long, 4 to 5 mm. in diameter 
at base, contracted at throat, glabrous, the lobes about 2 mm. long; stamens 10, 
8 to 9 mm. long; filaments nigrescent, free, about 2 mm. long, pilose at 
margins distally with hairs up to 0.4 mm, long; anther sacs about 4 mm. long; 
tubules laterally connate, about 4 mm. long, opening by introrse oval clefts 
about half their length; style slightly exserted, the stigma truncate. 
Type locality : Loja, Province of Loja, Ecuador. Type collected by Hartweg 
(no. 786). 
1 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 375 
Disteibuhon : Anies of southern Ecuador and northern Peru, altitude 2,500 
to 2,800 meters. 
Ecuadob. 
Loja: Loja, HarHoeg 786 (K, type). Cordillera de Zamora, east of Loja, 
Popenoe 1330 (N, type of M. popenoei). 
Peru. 
HuAnuoo : Chaglla, Macbride 3664 (F). Between Cbaglla and Mufia, 
Weberba/uer 6704 (B, type of M. multibraoteata, P). 
This species Is easily distinguished by the bracts, as mentioned In the key. 
The Peruvian specimens may have slightly narrower leaves than those from 
Ecuador, but the difference is barely discernible. The synonymy in this case 
Is a fair example of the necessity of seeing type material, rather than depend- 
ing upon previous descriptions. A local name (vicinity of Loja) Is M joyapa." 
21. Macleamia poortmanni Drake, Journ, de Bot. 3: 74. 1889. 
Small tree up to 6 meters high; branchlets subterete, strlate, glabrous or 
subpuberulous; petioles subterete, rugose, 4 to 6 mm. long, glabrous; leaf 
blades ovate or subspatulate, 4 to 6 cm. long, 1.8 to 2.5 cm. broad, narrowly 
attenuate at base, rounded or obtuse at apex, entire or faintly crenulate at 
margins, glabrous, pinnate-veined, the secondary veins 2 or 3 to a side, 
arcuate-ascending, with the midvein impressed above, prominent beneath, 
the veinlets reticulate, obscure; inflorescence axillary, subfasciculate, 2 to 8 
flowered; pedicels subterete, stout in fruit, 6 to 8 mm. long, glabrous, 
bibracteolate at middle with ovate bractlets about 1.5 mm. long; calyx tube 
campanulate, glabrous, 1.5 to 2 mm. long, 2 mm. in diameter at anthesis; 
limb 1 to 1.5 mm. long including lobes, the lobes 5, about 0.5 mm. long, 1.5 mm. 
broad; corolla subcylindric, 7 to 9 mm. long, 2 to 3 mm. in diameter, con* 
tracted at throat, glabrous, the lobes less than 1 mm. long; stamens 10, nearly 
as long as corolla; filaments free, 1 to 1.5 mm. long, nigrescent, sparsely 
pilose at distal margins; anther sacs about 4 mm. long; tubules laterally 
connate, about 3 mm. long, opening by wide clefts about 1 mm. long; stigma 
truncate; fruit ovoid, up to 1 cm. in diameter, the calyx limb persistent. 
Type locality : Loja, Province of Loja, Ecuador. Type collected by Poort- 
mann (no. 126). 
DISTRIBUTION: Vicinity of Loja, southern Ecuador. 
Eouadob. 
Loja: Vicinity of Loja, Andr4 4553 (K); Popenoe 1329 (N). 
This species is marked by exceptionally attenuate-based leaves, but other- 
wise is not sharply distinct from the complex referred to M. nitida. A local 
name is "joyapa." 
22. Macleania pilgeriana Hoer. Bot. Jahrb. Engler 42: 301. 1909. 
Low compact shrub; branchlets subterete, rugose, glabrous, pale brown; 
petioles subrugose, narrowly winged, glabrous, 3 to 4 mm. long; leaf blades 
oblong, 4 to 5 cm. long, 1.5 to 2 cm. broad, rounded at base, often decurrent on 
petiole, entire and slightly revolute at margins, coriaceous, glabrous, pinnate- 
veined, the midvein nearly plane above, prominent beneath, the secondary veins 
usually 3 to a side, oriented In basal half of leaf, ascending, slightly raised on 
both surfaces, the veinlets reticulate, slightly raised or plane; inflorescence 
axillary or sub terminal, short-racemose (rachls up to 8 mm. long), 6 to 10 
flowered, glabrous in all parts; pedicels rugose, 10 to 13 mm. long, each sub- 
tended by a coriaceous oblong subacute bract 2 mm. long, minutely bibracteo- 
late near base; calyx tube rugose, short-cylindric or campanulate, about 2.5 
mm. long, 2 to 3 mm. In diameter at anthesis; limb about 2 long including 
i 
376 CONTRIBUTIONS PROM THE NATIONAL HERBARIUM 
lobes, the lobes 5, apiculate, 2.5 to 3 mm. broad, the sinuses acute; corolla 
subcylindric, about 15 mm. long and 4 mm. in diameter, contracted dis tally, 
the lobes about 1 mm. long; stamens 10, about 11 mm. long; filaments castane- 
ous, distinct, sparsely pilose at distal margins; anther sacs 3.5 to 4 mm. long; 
tubules laterally connate, about 6 mm. long, opening by broad clefts nearly as 
long; stigma truncate or subpeltate. 
Type locality: West of Mount Pichincha, Province of Pichincha, Ecuador. 
Type collected by Sodiro (no. 92/llb). 
Distribution : Known only from the type collection. 
Ecuador. 
Pichincha; West of Mount Pinchincha, near A1 asp on go and Chiquilpa, 
Sodiro 92/llb {B, type). 
This species is distinguished by the slender elongate tubules, as noted in the 
key, but is distinct from M. nitida on no other tangible character. 
23. Macleania nitida (H. B. K.) Hoer, But. Jahrb. Engler 42: 269. 1909. 
Thibaudia rupestris H. B. K. Nov. Gen. & Sp. 3: 270. 1818. 
Thibaudia nitida H. B. K. Nov. Gen. & Sp. 3:271. 1818. 
Psammisia nitida Klotzsch, Linnaea 24:45. 1851. 
Psatnmisia rupestris Klotzsch, Linnaea 24:45. 1851. 
Psammisia alpicola Klotzsch, Linnaea 24:45. 1851. 
Macleania alpicola Hoer. Bot. Jahrb. Engler 42:269. 1909. 
Macleania sodiroi Hoer. Bot. Jahrb. Engler 42: 302. 1909. 
Macleania trianae Hoer, Bot. Jahrb. Engler 42:303. 1900, 
Shrub or low tree, the branchlets subterete, brownish or cinereous, puberu- 
lous when young, becoming glabrous; petioles subterete, rugose, 3 to 10 mm. 
long, glabrous, narrowly winged above; leaf blades oblong or ovate-oblong or 
ovate, 4 to 12 cm. long, 1.5 to 6 cm. broad, cuneate or rounded at base, subacute 
or obtuse at apex, entire and slightly revolute at margins, glabrous and some- 
times very sparsely punctate above, when young frequently pilose beneath 
with hairs up to 0.3 mm. long, becoming glabrous, pinnate-veined, the secondary 
veins 3 or 4 to a side, arcuate-ascending, with the midvein slightly impressed 
above, prominent beneath, the veinlets reticulate, nearly plane on both sur- 
faces ; inflorescence axillary near ends of branchlets, short-racemose, essentially 
glabrous in all parts, 4 to 15 flowered, the rachis rugose, 1 to 6 cm, long; 
pedicels striate, 7 to 20 mm. long, each subtended by an oblong bractlet about 
3 mm. long, minutely bibracteolate near base, swollen distally; calyx tube 
short-cylindric, about 3 mm. long and 3 mm. in diameter at an thesis; limb 
3 to 4 mm. long including lobes, the lobes 5, apiculate, 1 to 2 mm. long; corolla 
cylindrlc-urceolate, 12 to 22 mm. long, about 6 mm. in diameter at base, con- 
tracted at throat, the lobes erect, 1.5 to 2 mm. long; stamens 10, 9 to 13 mm. 
long; filaments distinct, nigrescent, subglabrous, 2 to 4 mm. long; anther sacs 
4.5 to 7 mm. long; tubules laterally connate, cylindLie-conical, 4 to 6 mm. long, 
opening by introrse oval clefts about half their length; style stout, exserted 
in mature flowers, the stigma peltate. 
Type locauty: Between Quebrada de Tochecito and La Ceja, in Quindlo 
Andes, Department of Tolima, Colombia. Type collected by Humboldt and 
Bonpland. 
Distbibutton : Andes of Venezuela to northern Peru, common in the northern 
part of its range, altitude 1,500 to 4,100 meters. 
SMITH—AMERICAN SPECIES OF THIBAUDIBAB 377 
Venezuela: Moritz 1349 (B, type of M. alpicola). 
M£bida : Mucurubfi., Gehriger 324 (N, Y). 
Colombia: Humboldt & Bonpland (B); Triana 4333 (B). 
Nqbte DE Santander : Mustiscua, Pamplona, etc., KUlip & Smith 19931 
(N, Y), 19738 (N, Y), 19914 (N, Y). 
Santandeb: Various pfiramo regions, KUlip & Smith 15722 (N, Y), 15806 
(N, Y), 17280 <N, Y), 17281 (N, Y), 17336 (N, Y), 17586 (N, Y), 
17698 (N, Y), 17744 (N), 17994 (N, Y), 18222 (N), 18606 (N, Y), 
21172 (N). 
Cundinamabca : Vicinity of Bogota, Triana 36 (B, type of M. trtanae), 
2703 (K) ; Holton in 1852 (K, Y) ; Andri 754 (K); Stuebel 150b (B) ; 
Schultze 54 (B, N); Peres 1060 (N). 
AntioquIa: Medellln, Archer 1211 (N). 
Caldas: Old Quindlo Trail, KUlip & Bazen 9467 (Y). 
Tolima : Quindfo Andes, between Quebrada de Tochecito and La Ceja, 
Humboldt d Bonpland (B, type). Near P&ramo de Ruiz, Pennell 
3116 (N, Y), 
Colombia or Ecuador: Andr6 (K). "Piedra ancha," Andr6 3344 (K); 
Andr4 (K). 
Ecuador: Jameson (N). 
Pichikcha: Mount Pichlncha, Sodiro 92/11 (B, type of M, sodiroi). 
Tungukagua : Bafios, Spruce 4999 (K, Y). 
Azuay : Nabdn, Rose 23914 (N). Between Ofia and Cuenca, Hitchcock 
21623 <N, Y). 
Loja: Vicinity of Loja, Hwnboldt & Bonpland (B, type of Thibaudia 
rupestris); Jameson in September, 1864 (K). 
Peru. 
Pittra : Palamba, Weberbauer 6041 (B). 
Cajamaeca : Huambos, Weberbauer 4182 (B). 
In flower structure, length of rachls, pedicels, etc., there are no conse- 
quential differences among these specimens. In leaf shape there are alight 
variations, but certainly none of specific value. In general it may be said 
that the leaves of the type of M. nitida are broadly ovate and obtuse at 
apez; of the type of M. alpicola oblong and somewhat attenuate at base; 
of the type of Thibaudia rupestris lanceolate-oblong; of the type of M. trianae 
elliptic and slightly larger; of the type of M. sodiroi broadly ovate with deeply 
impressed nerves. Because these variations occur throughout the above-cited 
specimens sporadically and without geographic relationship, I do not hesitate 
to consider the specimens representative of a single species. Local names: 
" TJva camarona," " cacaguito." The fruit is sometimes eaten. 
24. Macleania glabra (Klotzsch) Hoer. Bot. Jabrb. Engler 42:268. 1909. 
Psammisla glabra Klotzsch, Linnaea 24:46. 1851. 
Psammisia oostaricensis Klotzsch, Linnaea 24: 47. 1851. 
Macleania turrialbana Donn. Smith, Bot. Gaz. 27:339. 1899. 
Macleania costaricensis Hoer. Bot. Jahrb, Engler 42:268. 1909. 
Macleania irazuensis Blake, Proc. Biol. Soc. Washington 35:121. 1922. 
Low shrub, usually epiphytic, the branchlets sub terete, glabrous; petioles 
rugose, 4 to 10 mm. long, glabrous, narrowly winged above; leaf blades oblong 
or ovate-oblong, 4 to 10 cm. long, 2 to 5 cm. broad, cuneate or rounded at 
base, obtuse or subacute at apex, subentire and slightly revolute at margins, 
glabrous, sparsely punctate above or smooth, pinnate-veined, the mldvein 
slightly impressed above, prominent beneath, the secondary veins 2 to 4 to 
378 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
a side, arcuate-ascending, plane above, prominent beneath, the veinlets reticu- 
late, plane above, slightly raised beneath; inflorescence axillary near ends 
of branchlets, racemose, 4 to 20 flowered, essentially glabrous throughout, the 
rachis striate, 1 to 8 cm. long; pedicels striate, 10 to 20 mm. long, each sub- 
tended by an ovate, slightly flmbriate bractlet up to 3 mm. long, bibracteolate 
near the base with ovate, sometimes fused bractlets about 3 mm. long, swollen 
distally; calyx tube short-cylindric, about 2.5 mm, long and 4 mm. in diam- 
eter at anthesis; limb subspreading, about 2 mm. long including lobes, the 
lobes 5, apiculate, about 1 mm. long; corolla cylindric-urceolate, about 20 mm. 
long and 6 mm. In diameter, contracted at throat to 3 mm. in diameter, 
the lobes deltoid, about 2 mm. long; stamens 10, 9 to 14 mm. long; filaments 
free, short-pilose at margins distally; anther sacs Incurved at base and 
apex, 4 to 6 mm. long; tubules laterally connate or distinct nearly to base, 
rigidly and narrowly cylindric-conical, 4 to 6 mm. long, opening by elongate 
introrse clefts about half their length; stigma truncate. 
Type locauty: Mount Veragua, Veraguas, Panama. Type collected by 
Warszewicz. 
Distribution : Mountains of Costa Rica and western Panama, altitude 1,500 
to 3,300 meters. 
Costa Rica. 
San Jos£: La Palma, WerokU 16588 (B). Cerro de las Vueltas, Btandley 
& Valerto 43720 (N), 43907 (N), 44005 (N), 44022 (N). Vicinity of 
Santa Marfa de Dota, Standley 42325 (N), 43048 (N), Vicinity of 
El Copey, Btandley 42657 (N), 42683 (N), 42722 (N); Tonduz 12251 
(N). 
Cabtago: Mount Irazfi and vicinity, Oersted 8574 (N) ; Kuntze 2346 (Y) ; 
Hoffmann 555 (B) ; Pittier 13047 (N); Popenoe 1017 (N, type of 
M. irazuensis) ; Stork 2070 (F). Cartago, Oersted 8648 (N). Volcfin 
de Pofis, Pittier 2033 (N). Cerro de La Carpintera, Standley 34325 
(N), Mount Turrialba, Pittier 7546 (13090 herb. nat. Cost.) {B, F, 
G, N, type of M. turrialbana, V) ; Standley 34975a (N), 35257 (N). 
Panama. 
CHiBiQuf: Chiriqut Volcano, Pittier 3102 (N). 
Veraguas: Warszcicicz (B, type of M. costaricensis); Mount Veragua, 
Warszewicz (B, type). 
The situation with respect to the group of names here listed parallels that 
concerning M. nitida, etc. The type of M. glabra has leaves somewhat nar- 
rower than the average; the other three types involved are practically identical 
in leaf shape. As mentioned by Blake under his description of M. irazuensis, 
there is some variation in length of tubules, but this is not sufficiently constant 
to be of consequence. A good deal of confusion in this group has been caused 
by a misunderstanding as to whether one or two tubules were present, a situ- 
ation easily avoided by dissection. A comparison of this species with the 
South American M. nitida shows only the slight distinction mentioned in the 
key, and perhaps they should lie combined. Local names: "Colmillo," 
" muelas." 
25. Macleania robusta Rushy, Descr. S. Amer. PI. 75. 1920. 
Macleania arcuata Rugby, Descr. S. Amer. PI. 76. 1920. 
Shrub or low tree 2 to 4 meters high; branchlets terete, brownish, glabrous, 
straight; petioles rugose, 6 to 10 mm. long, glabrous or faintly puberulous, 
narrowly winged above; leaf blades ovate or ovate-oblong, 5 to 13 cm. long, 
3 to 7 cm. broad, rounded or subcuneate at base, obtuse or subacute at apex, 
entire and slightly revolute at margins, glabrous, pinnate-veined, the secondary 
SMITH—AMERICAN SPECIES OP THIBATTDIEAE 379 
veins 3 or 4 to a side, arcuate-ascending, with the midvein plane or slightly 
impressed above, prominent beneath, the veinlets obscurely reticulate; inflo- 
rescence axillary near ends of branchlets, racemose, 5 to 10 flowered, glabrous 
throughout; rachis sub terete, rugose, 1.5 to 4 cm. long; pedicels subterete, 13 
to 25 mm. long, each subtended by an oblong deciduous bractlet about 4 mm. 
long, bibracteolate near base with acute bractlets about 3 mm. long, swollen 
distally; calyx tube short-cylindric, about 2.5 mm. long and 4 mm. in diameter 
at anthesis; limb 2 to 2.5 mm. long including lobes, the lobes 6, aplculate, about 
1 mm. long; corolla eylindrie, 14 to 15 mm. long and about 6 mm. in diameter, 
contracted above, the lobes acute, 1.5 mm. long, faintly pilose within; stamens 
10, 8 to 9 mm. long; filaments castaneous, distinct, about 2 mm. long, glabrous; 
anther sacs about 4 mm. long; tubules laterally connate, cylindric-conical, about 
3 mm. long, opening by introrse clefts about half their length; style stout, 
slightly exserted, the stigma peltate; calyx tube becoming elongate-ovoid In 
fruit 
Type locaijty : Sierra del Lfbano, Santa Marta, Department of Magdalena, 
Colombia, altitude 1,800 to 2,200 meters. Type collected by H. H. Smith (no. 
1722). 
Distribution : Known only from the type locality. 
Colombia. 
Magdalena : Sierra del Llbano, Santa Marta, H. H. Smith 1722 (N, Y, 
type), 2789 (N, Y, type of M. arcuata). 
This species is very close to M. nitida, but seems to be specifically distinct 
on the basis of its robust habit and comparatively wide-spreading inflorescence. 
26. Macleania attenuata Fedtsch. & Basil. Not, Syst. Herb. Hort. Bot. U. S. 
S. R. 6:23. 1926. 
Compact shrub, the branchlets subterete, rugose, cinereous, glabrous; petioles 
rugose, glabrous, 2 to 4 mm. long; leaf blades oblong, 5 to 9 cm. long, 2.5 to 3.5 
cm. broad, rounded at base, frequently decurrent on petiole, acute, subacute, 
or obtuse at apex, minutely crenate-undulate at margins, glabrous, sparsely 
irapressed-punctate above, pinnate-veined, the secondary veins 3 to 5 to a side, 
spreading, ascending near margins, with the midnerve slightly impressed 
above, raised beneath, the veinlets obscurely reticulate; inflorescence axillary, 
subfasclculate (peduncle stout, up to 5 mm. long), 5 to 12 flowered, glabrous In 
all parts; pedicels rugose, stout, 5 to 8 mm. long, each subtended by a small 
oblong bract, bibracteolate near base (bracts and bractlets ovate-acute, about 
2 mm. long) ; calyx tube rugose, short-cylindric, about 3.5 mm. long and 3 mm. in 
diameter at anthesis; limb 3 mm. long including lobes, the lobes 5, aplculate, 
about 3 mm. broad; corolla thin-carnose, cylindric-urceolate, 16 to 17 mm. long, 
about 5 mm. in diameter, the lobes oblong, subacute, 2 mm. long; stamens 10, 
about 13 mm. long; filaments dark castaneous, distinct, 3 mm. long, sparsely 
pilose at distal margins; anther sacs about 4 mm. long; tubules slender, 
laterally connate, about 8 mm. long, opening by more or less fused clefts more 
than half as long; style often exserted, the stigma truncate. 
Ttpd LOCALITY: Western side of Mount Pichincha, Province of Pichincha, 
Ecuador. Type collected by Jameson (no. 622). 
Distribution : Known only from the type locality. 
Ecuador. 
Pichincha: Mount Pichincha, Jameson (K, type coll.?), 731 (K). 
Distinct in the extraordinarily long tubules of its anthers. The leaves of our 
specimens are not precisely as described by the authors, but I feel certain that 
the material is placed correctly here. 
380 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
27. Macleanla nervosa A. C. Smith, sp, no v. 
Frutex; laminis ovato-oblongis basi rotundatis apice obtusis 6 ad 7 pli-nerviis, 
venulis prominentibus; inflorescentia subfasciculata pauciflora; calyce brevtter 
cylindrico, lobis apiculatis; corolla cylindrica tenuiter carnosa subglabra; 
statninibus aequalibus, fllamentis distinct is ad mai'gines pilosis, tubulis latera- 
liter connatis loculos subaequantibus. 
Shrub; branch lets sub t ere I e, when young purplish and puberulous, becoming 
cinereous and glabrous; petioles rugose, 3 to 7 mm. long, glabrous, narrowly 
winged above; leaf blades ovate-oblong, 8 to 16 cm. long, 3 to 7 cm. broad, 
rounded or subcordnte at base, obtuse at apex, entire and revolute at margins, 
glabrous, 5 to 7 pli-nerved, the secondary nerves oriented near base, ascending, 
with the midnerve slightly impressed above, prominent beneath, the veinlets 
copiously reticulate, slightly raised above, prominent beneath, white-pilose 
beneath when young, becoming glabrous; inflorescence axillary, subfasciculate, 
2 to 6 flowered; pedicels subterete, 7 to 10 mm. long, puberulous or glabrous, 
each subtended by a deciduous bractlet about 2 mm. long, bibracteolate near 
base with minute subpubescent bractlets, swollen distally; calyx tube short- 
cylindric, sparsely pilose with spreading hairs up to 0.3 mm. long, about 4 mm. 
long and 4 mm. in diameter at an thesis; limb suberect, about 2 mm. long 
including lobes, the lobes 5, apiculate, less than 1 mm. long; corolla cylindric, 
thin-camose, 10 to 17 mm. long uiul 5 mm. in diameter at base, contracted 
above, glabrous or sparsely short-pilose distally, the lobes 1 to 1.5 mm. long; 
stamens 10, about 11 mm. long; filaments distinct, 4 mm. long, marginally 
pilose distally with irregular pale hairs up to 0.4 mm. long; anther sacs 4.5 
to 5 mm. long; tubules laterally connate, rigidly cylindric-conical, about 4 
mm. long, opening by short oval introrse clefts; stigma peltate. 
Type in the herbarium of the New York Botanical Garden, collected in forest 
at Lfbano, Department of Tolima, Colombia, altitude 1,400 to 1,700 meters, 
December 26 to 29, 1017, by F. W. Pennell (no. 3405). Duplicate in U. S. 
National Herbarium. 
Distribution : Known only from the type collection. 
This species has very distinctive leaves, usually broadest below the middle, 
with veinlets raised above, rather than obscure as they are In most species 
of the genus. The soft corollas, which readily become flattened against the 
older parts of the branchlets where they are borne, are also characteristic. 
28. Macleania reducta A. C. Smith, sp. nov. 
Frutex subpuberulus glabrescens; laminis oblongis vel ovato-oblongis basi 
cuneatis apice obtusis pinnatinerviis; inflorescentia subfasciculata; calyce 
subcylindrico parce piloso 3 vel 4 lobato, lobis ovato-triangularibus; corolla 
cylindrico-urceolata 3 vel 4 lobata; staminibus 6 ad 8 aequalibus, fllamentis 
distinctly ad margines pilosis, tubulls lateraliter connatis quam loculls paullo 
brevioribus. 
Shrub; branchlets terete, puberulous and purplish when young; petioles 
rugose, 3 to 5 mm. long, puberulous or glabrous, narrowly winged above; leaf 
blades oblong or ovate-oblong, 4 to 0 cm, long, about 2 cm. broad, cuneate at 
base, obtuse at apex, subentire at margins, puberulous beneath when young, 
becoming glabrous, sparsely punctate above, pinnate-veined, the secondary 
veins 2 or 3 to a side, oriented near base, arcuate ascending, with the midvein 
nearly plane above, raised beneath, the veinlets reticulate, plane or slightly 
raised on both surfaces; inflorescence axillary, subfasciculate, 6 to 20 flow- 
ered; pedicels subterete, 6 to 8 mm. long, puberulous or glabrous, each sub- 
tended by an oblong flmbriate bractlet 2 to 3 mm. long, bibracteolate near 
SMITH—AMERICAN SPECIES OP THIBATJDIEAE 381 
base; calyx tube cylindrie, about 8 mm. long and 2 mm. In diameter at anthesls, 
pilose with scattered pale spreading hairs about 0.3 mm. long; limb spreading, 
about 4 mm. long including lobes, the lobes 4 (occasionally 3), ovate-triangular, 
apicutate, 2 to 3.5 mm. long, 4 mm. across, thick-margined; corolla cylindrlo- 
urceolate, 11 to 13 mm. long, 3 to 3.5 mm. in diameter, contracted above, 
essentially glabrous, 4 (or 3) lobed, the lobes triangular, subacute, 1.5 to 2 mm. 
long; stamens 6, 7, or 8, subequal, 10 to 11 mm. long; filaments dark-cas- 
taneous, distinct or loosely coherent at base, about 2.5 mm. long, pilose distally 
at margins with silky hairs about 0.3 mm. long; anther sacs 4,5 to 5 mm. 
long; tubules laterally coherent or practically distinct, stiffly cylindrie, about 
4 mm, long, opening by oval clefts about half their length; style slightly 
exserted in mature flowers, the stigma truncate. 
Type in the herbarium of the New York Botanical Garden, collected in the 
Andes of Ecuador, without definite locality, 1857 to 1859, by R. Spruce (no. 
5842). Duplicates at G, K. 
Distribution : Known only from the type collection. 
This is the only species in this group of Macleania which has the calyx lobes 
and stamens consistently reduced in number. The slender corollas, the densely 
fasciculate and frequently second inflorescences, and the narrow oblong leaves 
are characteristic also. 
29. Macleania ecuadorensis Hoer. Bot. Jahrb. Engler 42:300. 1909. 
Maoleania elliptica Hoer. Bot. Jahrb. Engler 42; 301. 1909. 
Compact shrub; branchlets stout, rugose, cinereous or brownish, puberulous 
when young, soon glabrous; petioles rugose, essentially glabrous, 3 to 6 mm. 
long; leaf blades broadly ovate, 4 to 7 cm. long, 2.5 to 6 cm. broad, rounded 
or broadly cuneate at base, often decurrent on petiole, subentire and slightly 
revolute at margins, glabrous above, pilose beneath (hairs pale, lax, up to 0.7 
mm. long, eventually deciduous), coriaceous, pinnate-veined, the secondary veins 
usually 3 to a side, arcuate-ascending, connected near margins, with the mid- 
nerve deeply impressed above, prominent beneath, the veinlets reticulate, ob- 
scure above, slightly raised beneath; inflorescence axillary, subfasciculate 
(peduncle stout, up to S mm. long), 8 to 12 flowered, glabrous in all parts; 
pedicels rugose, 5 to 7 mm. long, each bracteate at base and bibracteolate near 
base (bracts and bractlets oblong, acute, about 2 mm. long, often glandular- 
margined) ; calyx tube short-cylindric, rugose, 2 to 3 mm. long, 3 to 4 mm. in 
diameter at anthesis; limb 2.5 to 4 mm. long including lobes, the lobes 5, apicu- 
late, 3 to 4 mm. broad; corolla subcylindrlc, 15 to 16 mm. long, 4 to 5 mm. in 
diameter, contracted at throat, the lobes 1.5 to 2 mm. long; stamens 10, 11 to 
12 mm. long; filaments subnigrescent, distinct, essentially glabrous, 2 to 3 mm. 
long; anther sacs 4 to 5 mm. long; tubules slender, laterally connate, 5 to 
6 mm. long, opening by clefts about half as long; stigma truncate, 
Txpe locality : VoleJtn Tunguragua, Province of Tunguragua, Ecuador. 
Type collected by Sodiro (no. 92/2D). 
Distribution : Andes of Ecuador; apparently rare. 
Ecuador: Mount Atacazo, Sodiro 92/2C (B, type of M, elliptica). 
Tunguragua: Volcfin Tunguragua, Sodiro 92/2D (B, type). 
The present plant bears a strong resemblance to certain Ecuadorean speci- 
mens of M. nitida, from which species it may be considered distinct on the 
characters mentioned in the key. The types of M. ecuadorensis and M. elliptica 
are practically identical, differing only in the slightly larger leaves of the 
latter. 
F 
382 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
30. Macleania loeseneriana Hoer, Bot. Jahrb. Engler 42: 302. 1909. 
Macleania laurina Blake, Proc. Biol. Soc. Washington 35:121. 1922. 
Subsc&ndent shrub; branchlets terete, subpuberulous and brownish when 
young, becoming glabrous and cinereous; petioles rugose, glabrous, 6 to 12 
mm. long, narrowly winged above; leaf blades oblong-ovate, 5 to 13 cm. long, 
2.5 to 6 cm. broad, cuneate or rounded at base, acute or obtuse at apes, entire 
at margins, glabrous and sometimes sparsely punctate above, essentially 
glabrous beneath, pinnate-veined, the midvein deeply impressed above, promi- 
nent beneath, the secondary veins 3 or 4 to a side, ascending, impressed above, 
raised beneath, the veinlets obscurely reticulate; inflorescence axillary, short- 
racemose, 10 to 20 flowered, circumscribed at base by numerous imbricate 
oblong subpuberulous bracts up to 12 mm. long; pedicels rugose, 16 to 25 mm. 
long, sparsely puberulous, deciduously bibracteolate near base with minute 
ovate puberulous bractlets; calyx tube short cylindric, densely pilose with pale 
spreading hairs up to 0.8 mm. long, about 3 mm. long and 4 mm. in diameter 
at anthesls; limb 5 to 7 mm. long including lobes, slightly less pilose than 
the tube, the lobes 5, apiculatc, about 2 mm. long, the sinuses rounded; corolla 
cylindrlc-urceolate, pilose as the calyx, becoming subglabrous, up to 21 mm. 
long and 6 mm. in diameter, contracted at throat, the lobes acute, about 2 mm. 
long; stamens 10, about 12 mm. long; filaments stout, nigrescent, distinct, 
about 4 mm. long, densely pilose at margins ilistally with hairs up to 0.5 mm. 
long; anther sacs dark castaneous, 5 to 6 mm. long; tubules laterally con- 
nate to apex, 4 to 0 mm. long, opening by oval clefts about one-third their 
length; style about as long as corolla, the stigma truncate. 
Type locauty: Nanegal Valley, west of Mount Pichinchn, Province of 
Pichincha, Ecuador. Type collected by Sodiro (no. 92/2c). 
Distribution: Andes of northern Ecuador. 
Ecuador : Sodiro 92/3 (B). 
Cabchi: El Angel, about 3,400 meters, Popcnoe 1340 (N, type of 
M. laurina). 
Pichincha: Nanegal Valley, west of Mount Pichincha, Sodiro 92/2c 
(B, type). 
This is a robust and unmistakable species, which, according to Popenoe, Is 
abundant in certain localities. The differences mentioned by Blake in his de- 
scription of M. laurina are observable, but a comparison of the two type 
specimens leaves no doubt that only one species is represented. Local names: 
" Chaqut-lulu," " hualicon." 
31. Macleania hirtifiora (Benth.) A. C. Smith. 
Thibaudia hirtifiora Benth. PI. Hartw. 224. 1846. 
Maoleania recurva Busby, Descr. S. Amer. PI. 76. 1920. 
Low shrub about 1 meter high; branchlets terete, densely pilose with pale 
hairs up to 0.5 mm. long, becoming subglabrous; petioles rugose, 6 to 8 mm. 
long, puberulous or glabrous, narrowly winged above; leaf blades ovate or ovate- 
oblong, 6 to 10 cm. long, 2.5 to 4.5 cm. broad, cuneate at base, obtuse or sub- 
acute at apex, entire at margins, essentially glabrous above, sparsely pilose 
beneath with pale spreading hairs up to 0.5 mm. long, pinnate-veined, the 
midvein slightly impressed above, prominent beneath, the secondary veins 2 or 
3 to a side, oriented in basal half, arcuate-ascending, nearly plane above, raised 
beneath, the veinlets obscurely reticulate; inflorescence axillary, short-racemose, 
S to 15 flowered; rachis rugose, pilose as the branchlets, 1 to 2.5 cm. long; 
pedicels subterete, sparsely pilose, 8 to 15 mm. long, each subtended by an ovate 
acute flmbriate bractlet about 3 mm. long, bibracteolate near base, swollen at 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 383 
apex; calyx tube short-cylindric, irregularly pilose, 3 to 5 mm, long, S to 3.5 mm. 
in diameter at an thesis; limb spreading, 2 to 4 mm. long including lobes, the 
lobes 5, ovate, apiculate, 1 to 2 mm. long; corolla cylindric-urceolate, 13 to 15 
mm. long, 4 to 5 mm. in diameter at base, contracted above, pilose as the calyx 
(becoming subglabrous), the lobes 1 to 2 mm. long; stamens 10, 9 to 11 mm. 
long; filaments nigrescent, free, subglabrous, about 2 mm. long; anther sacs 
4.5 to 6 mm long; tubules laterally connate to apex, opening by oval clefts about 
half their length; stigma peltate. 
Type locality: Slopes toward Sotar&, Department of El Cauca, Colombia. 
Type collected by Hartweg (no. 1223). 
Distribution : Andes of Colombia and Ecuador, altitude 1,800 to 2,800 meters. 
Colombia. 
Magdalena : Santa Marta, Purdie (K). Sierra del Lfbano, 3, S, Smith 
1964 (Y, type of If. reeurva). San Sebastian, Funck 488 (K), 
Cundinamakca : Tequendama, PenneU 2643 (N, Y), 2646 (Y). 
El Cauca: Slopes toward Sotarii, Hartweg 1223 (K, type). 
Ecuador: Bprttce 5550 (K). 
Aztjay: Between Nabdn and Ofia, Jameson (K). 
This Is a well-marked species, without close relatives; probably it repre- 
sents an offshoot of the forbear of M. nitida. In so far as can be observed, 
the Santa Marta specimens and those from farther south are identical, although 
it is Quite conceivable that they have a separate racial history. Of the speci- 
mens cited, PenneU 2846 is the most distinctive, with leaves noticeably narrowed. 
32. Macleania farinosa Mansf. Notlzbl. Bot, Gart. Berlin 9:436. 1925. 
Shrub; branchlets nigrescent or cinereous, puberulous when young, becoming 
glabrous; petioles rugose, 4 to 7 mm. long, essentially glabrous, winged above; 
leaf blades ovate or obovate, 5.5 to 9 cm. long, 3 to 6 cm. broad, attenuate at 
base, rounded or obtuse at apex, entire at margins, essentially glabrous above, 
loosely pubescent beneath with short irregular hairs, becoming subglabrous, 
pinnate-veined, the secondary veins 3 to 5 to a side, ascending, with the mid- 
vein slightly impressed above, prominent beneath, the veinlets reticulate, 
slightly impressed above, plane beneath; inflorescence axillary, subfasciculate, 
3 to 6 flowered, all parts densely farinose-pubescent (hairs crowded, pale 
yellow, up to 0.3 mm. long); pedicels subterete, 3 to 6 mm, long, bibracteolate 
near base with ovate bractlets about 4 mm. long, obscurely articulate with 
calyx; calyx tube short-cylindric, about 3 mm. long and 3 mm. in diameter at 
anthesis; limb 3 to 4 mm. long including lobes, the lobes 5, deltoid, about 2 mm. 
long; corolla cylindric, 13 to 14 mmT long, about 3 mm. in diameter, the lobes 
triangular-oblong, 2 to 3 mm. long; stamens 10, 8.5 to 9 mm. long; filaments 
nigrescent, glabrous, distinct, about 2.5 mm. long; anther sacs about 4 mm. 
long; tubules laterally connate, about 3.5 mm. long, opening by elongate oval 
clefts more than half their length; style slightly exserted, the stigma truncate. 
Type locality : East of Huancabamba, Department of Cajamarca, Peru, alti- 
tude 2,400 to 2,500 meters. Type collected by Weberbauer (no. 6120). 
Distribution : Known only from the type collection. 
Peru. 
Cajaharca: East of Huancabamba, Weberbauer 6120 (B, type, F, N, Y). 
An isolated species, so distinct from others of the genus that it can not be 
placed with accuracy. It bears somewhat the same relation to the 2-tubuled 
group of Macleania that M. wtiapa bears to the single-tubuled group, although 
the two species have no other points of comparison. 
84377—32 6 
384 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
DOUBTFUL SPECIES 
Macleania pulchba Hook. f. Bot. Mag. Curtis 90: pi. 5JfG5. 18G4. 
Type locality: Probably Colombia. Type a cultivated plant, the original 
collector not stated. 
Quite probably this plant is identical with M. corcLifolia, if weight la given 
to the illustrations and descriptions. There seems to have been confusion, in the 
mind of the author, as to whether one or two tubules are present. The char* 
acteristie form of the winged calyx as illustrated leads me to place this species 
in the one-tubuled group. 
Macleania ckenulata Fedtsch. & Basil, Not. Syst. Herb. Hort. Bot. U. S, S. R. 
6 : 24, 1926. 
Type locality : Venezuela or Colombia. Type collected by Funck and Schlini 
(no. 933). 
Said to be allied to M. specioxissima and If. pulchra, which would indicate 
that there is probably a single anther tubule, rather than the two Implied 
in the description. 
12. PSAMMISIA Klotzscli, Linnaea 24:42. 1851 
Calyx tube articulate with pedicel, short-cylindric or campanulate; limb 
erecto-patent, 5 (rarely 2 to 4) lobed, the lobes ovate or triangular, apiculate 
or subacute; corolla subcyllndric, elongate-urceolate or subglobose, 5-lobed, the 
lobes triangular, subacute; stamens 10 (rarely 8 or 12), equal in length, often 
nearly as long as corolla; filaments distinct or connate, attached to the anther 
dorsally near its base; anthers firm, stout, the sacs strongly granular, the 
tubules about as long us the sacs, distinct, opening by elongate introrse clefts; 
connectives distally 2 spurred (spurs present on five or ten stamens, acute and 
evident or rounded and obscure) ; style filiform, frequently exserted. 
Shrubs of various habit, sometimes epiphytic, with coriaceous alternate fill- 
nerved or pinnate-veined petioled leaves; inflorescence axillary or terminal, 
subfasciculate or racemose; flowers pedicelled, few to many to an inflorescence; 
pedicels declduously bibracteolate. 
Distribution : Mountainous continental tropical America from Costa Rica 
to Bolivia and eastward to Mount Roraima in British Guiana and the island 
of Trinidad. Twenty-five species are here described, and in addition there are 
three names I am unable to place. 
From Macleania this genus is distinguished by its usually distinct tubules 
and spurred connectives. The first species mentioned by Klotzsch is P, 
oyathifera (Bentb.) Klotzsch, which is synonymous with P. falcata (H. B. K.) 
Klotzsch. 
KEY TO THE SPECIES 
Corolla broadly conical or subglobose, up to 14 mm. long. 
Flowers subfasciculate (rachis hardly perceptible), 2 to 6 to an inflorescence; 
pedicels 5 to 12 mm. long l, p. pennellii. 
Flowers racemose (rachis 0.7 to 6 cm. long), more than 6 to an inflorescence; 
pedicels 12 to 30 mm. long. 
Corolla globose, 3 to 8 mm. long at maturity; anthers up to 4.5 mm. long. 
Leaves chartaceous, 10 to 18 cm. long; pedicels slender, about 0.8 
in diameter (Colombia) 2. P. breviflora. 
Leaves coriaceous, 20 to 35 cm. long; pedicels about 1.5 mm. In diameter 
(Pent) 3. p. globosa. 
\ f 
SMITH—AMERICAN SPECIES OF THIBATXDIEAE 385 
Corolla conical, 8 to 14 mm. long at maturity; anthers 6 to 8 mm. long. 
Leaves 2 or 3 times as long as broad (4 to 8 cm. broad or more); rachis 
up to 2 cm. long. 
Pedicels 12 to 15 mm. long; leaves chartaceous; corolla urceolate- 
cylindric 16. P. sodiroi. 
Pedicels 18 to 25 mm. long; leaves coriaceous; corolla strictly coni- 
cal  4. P. graebneriana. 
Leaves 3 or 4 times as long as broad (2.5 to 4 cm. broad, rarely more); 
rachis 3 to 8 cm. long, rarely less 5. P. lehmannii. 
Corolla cylindric-urceolate, 14 mm. long or more (rarely less). 
Calyx lobes large, 4 to 8 mm. long; rachis elongate, 7 to 15 cm. long, the 
flowers distant. 
Inflorescence (rachis, pedicels, calyces, and corollas) subglabrous or short- 
pilose (hairs pale, less than 0.5 mm. long, obscurely septate) ; calyx 
lobes 3 or 4; bractlets of the pedicel less than 5 mm. long. 
6. P. ecuadorensis. 
Inflorescence densely ferruginous-tomentose (hairs 1 mm. long or more, 
clearly septate); calyx lobes 5; bractlets of the pedicel 10 to 12 mm. 
long 7. P. ferruginea. 
Calyx lobes not exceeding 4 mm. in length. 
Flo were large, the calyx 10 to 15 mm, across summit, the corolla up to 40 
mm. long, 10 to 15 mm. in diameter at base; anthers stout, about 2 mm. 
In diameter 8. P. grandiflora. 
Flowers smaller, the calyx not more than 10 mm. across summit, the 
corolla 14 to 28 mm. long (up to 40 mm. long in no. 14), 5 to 8 mm. in 
diameter at base; anthers slender, 1 to 1.5 mm. in diameter. 
Anthers (Including tubules) 6 mm. long or less. 
Filaments connate in a tube for nearly their entire length (Central 
America) 9. P. ramiflora. 
Filaments distinct or loosely coherent at base (South America and 
Trinidad). 
Texture of leaves chartaceous (Venezuela, Guiana, and Trinidad). 
10, P. urichiana. 
Texture of leaves coriaceous (Bolivia, Peru, and Ecuador). 
Leaves oblong-lanceolate, about 3 times as long as broad (usually 
less than 6.5 cm. in breadth) 11. P. pauciflora. 
Leaves broadly oblong-ovate, about twice as long as broad (about 
8 cm. in breadth) 12. P. elliptica. 
Anthers (including tubules) 7 mm. long or more. 
Venation 7 to 9 pli-nerved, the leaves broadly ovate, about twice as 
long as broad. 
Leaf base subcordate; tubules about one-fourth as long as anther 
sacs, the thick connective tissue continued into the subcoriaceous 
tubules 13. P. killipii. 
Leaf base cuneate; tubules about half as long as anther sacs, the 
thick connective tissue not continued into the submembranous 
tubules. 
Filaments connate; leaves cuneate-attenuate at base (Trinidad). 
14^ P. recurvata. 
Filaments distinct; leaves cuneate at base. 
Calyx lobes 3 to 5, often In a state of semifusion, up to 3 mm. long 
(northern Colombia) 15. P. elegans. 
386 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Calyx lobes 5, about 2 mm. long (Ecuador and Peru). 
25. P. ulbrichlana. 
Venation 5 (rarely 7) pli-nerved or pinnate-veined; leaves oblong- 
ovate, at least 3 times as long as broad. 
Alternate connectives (or all connectives) with noticeable spurs, the 
spurs nearly twice as broad as the connective immediately below. 
Venation pinnate, the secondary veins spreading, 4 to 6 to a side. 
16. F. sodlrol. 
Venation pli-nerved, the secondary nerves ascending, oriented near 
base, 2 or 3 to a side. 
Filaments connate  17. P. columbiensis. 
Filaments distinct. 
Branchlets, pedicels, and calyces glabrous. 
Filaments and connectives glabrous or essentially so. 
18. P. macrophylla. 
Filaments and connectives pilose distally at margins (hairs 
0.1 to 0.4 mm. long). 
Anthers (including tubules) 8 to 9 mm. long (rarely more). 
19. P. guyanensis. 
Anthers (including tubules) 10 to 12 mm. long (rarely 
less). 
Rachis 1 to 4 cm. long; flowers 6 to 10 per centimeter on 
mature rachis (Peru) 20. P. coarctata. 
Rachis 3 to 7 cm. long (rarely 2 cm.); flowers 2 to 4 per 
centimeter on mature rachis (Colombia). 
21. P. falcata. 
Branchlets, pedicels, and calyces short-pubescent (hairs pale, 
up to 0.3 mm. long)  22. P. lanceolata. 
Alternate connectives obscurely spurred (spurs rounded, hardly 
broader than the connective immediately below, rarely sub- 
acute). 
. Leaves pilose beneath (hairs dark brown, stout, up to 0.3 mm. 
long, 2 to 4 per sq. mm. of surface); pedicels with bractlets 
3 to 5 mm. long 23. P. penduliflora. 
Leaves glabrous beneath; pedicels minutely bibracteolate, the 
bractlets less than 2 mm. long. 
Pedicels up to 20 mm. long (rarely to 25 mm.) ; leaves predomi- 
nantly 5-pIi-nerved (Venezuela and northern Colombia). 
24. P. hookeriana. 
Pedicels 20 to 35 mm. long (rarely less); leaves predominantly 
7 pli-nerved (Ecuador and Peru) 25. P. ulbrichlana. 
1. Psammisia pennellli A. C. Smith, sp. nov. 
Frutex parvus; laminis oblongis vel ovato-oblongis petiolatis basi cuneatis 
vel attenuates apice acuminatis pinnatinerviis vel pli-nerviis; inflorescentia 
fasciculata, floribus breviter pedicel 1 at is glabris; corolla conico-subglobosa; 
staminlbus aequalibus alternatim bicalcaratis, calcaribus obtusis, tubulis dis- 
tinctis quam loculis multo breviorlbus. 
Low shrub; branchlets terete, glabrous, brownish when young, becoming 
cinereous; petioles rugose, 4 to 12 mm. long, glabrous, narrowly winged above; 
leaf blades oblong or ovate-oblong, 7 to 17 cm. long, 3 to 6 cm. broad, cuneate 
or attenuate at base, acuminate at apex, entire and narrowly revolute at 
margins, pinnate-veined or pli-nerved, the secondary veins 2 or 3 to a side, 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 387 
ascending, with the midvein plane above, raised beneath, the veinlets reticulate, 
nearly plane on both surfaces; inflorescence axillary, fasciculate, 2 to 6 
flowered; pedicels striate, 5 to 12 mm. long, glabrous, bibracteolate at base 
with triangular bractlets about 1 mm. long; calyx glabrous, strongly rugose, 
the tube short-cylfndric, 3 to 4 mm. long and 4 mm. in diameter at anthesls, 
the limb spreading, 2 to 4 mm. long including lobes, the lobes 5, minutely 
apiculate, subcartilaginous, about 5 mm. across; corolla broadly conical-sub- 
globose, glabrous, 5 to 7 mm, long, 5 to 6 mm. in diameter at middle, contracted 
to about 2 mm. in diameter at throat, 5-lobed, the lobes erect or spreading, 
triangular, subacute, about 1 mm. long; stamens 10, 5 to 5.5 mm, long; fila- 
ments thick, dark castaneous, distinct, about 1.5 mm. long and 1 mm. across, 
leading into similar broad connectives, the connectives sparsely pubescent at 
margins with pale hairs up to 0.5 mm. long, alternately 2-spurred, the spurs 
rounded; anther sacs about 3.5 mm, long, stout; tubules distinct to base, 1 to 
1.5 mm long, opening by oval clefts nearly their entire length; style rigid, 4 to 5 
mm. long, the stigma truncate. 
Type in the U. S. National Herbarium, no. 1,143,644, collected in forest 
below San Jos£, near San Antonio, Department of El Gauca, Colombia, altitude 
2,100 to 2,500 meters, July 1, 1922, by F, W. Pennell (no. 7628). Duplicates at 
B, G, T. 
Distribution : Andes of western Colombia, 1,800 to 2,800 meters. 
Colombia. 
C aid as : Finares, above Salento, Pennell 9304 (Y). 
El Value: La Cumbre, Pennell d Kittip 5750 (B, N, T). 
El Cauca: San Jos6, near San Antonio, Pennell A Killip 7290 (N, Y). 
Distinguished from other species of the small-flowered group by its few- 
flowered inflorescences and short pedicels. 
%. Psammisia breviflora (Benth.) Klotzsch, Linnaea 24:44. 1851. 
Thibaudia breviflora Benth. PI. Hartw. 224. 1846. 
Low shrub; branch lets subterete, brownish, sparsely puberulous when young, 
becoming glabrous; petioles rugose, 3 to 5 mm. long, glabrous; leaf blades 
oblong or lanceolate-oblong, 10 to 18 cm. long, 2.5 to 4 cm. broad, subcuneate 
at base, caudate-acuminate at apex, entire at margins, glabrous, 5-pli-nerved, 
the secondary nerves oriented above base to a distance of 2 cm., ascending, 
with the midnerve plane or slightly impressed above, prominent beneath, the 
veinlets reticulate, distinctly raised on both surfaces; inflorescence axillary, 
racemose, 4 to 10 flowered, glabrous in all parts; rachis terete, slender, about 
0.8 mm. in diameter, 0.5 to 5 cm. long; pedicels terete, 15 to 30 mm. long, each 
subtended by a narrowly oblong bractlet 2 to 3 mm. long, minutely bibracte- 
olate near base, gradually swollen distally; calyx tube short, obconical, about 
3 mm. long and 4 mm. In diameter at summit at an thesis; limb about 1.5 mm. 
long including lobes, the lobes 5, triangular, acute, about 1 mm. long; corolla 
cylindric-subglobular, 5 to 9 mm. long, about 5 mm. in diameter at middle, 
contracted at base and apex, the lobes about 1 mm. long; stamens 10, 
about 4.5 mm. long; filaments slender, dark castaneous, distinct, puberulous 
dorsally and marginally toward apex with brownish hairs up to 0.2 mm. long, 
leading into slender connectives, the connectives alternately 2-spurred, the 
spurs rounded; anther sacs incurved at base, about 3 mm. long; tubules 
cyiindrlc-conical, 1 to 1.5 mm. long, opening by oval clefts nearly as long; 
style slender, nearly as long as corolla, the stigma subhemlspherical. 
Ttpb locality : Andes of Popay&n, Department of El Cauca, Columbia. Type 
collected by Hartweg (no. 1225*). 
388 CONTRIBUTIONS FROM THE NATIONAL, HERBARIUM 
Distribution : Andes of western Colombia, altitude 1,500 to 2,800 meters. 
Colombia. 
BoiJvab: Cascada Chorron, south of Antizales, Pennell 4406 (Y). 
AntioquIa : Amalfl, Kalbreyer 1670 (B, K). 
El Choo6: Concepci6n, Archer 2002 (N, Y), 2209 (N). 
El Catjoa: San Jos6, near San Antonio, Pennell 7629 (N, Y). Vicinity of 
Popayftn, Hartweg 1225* (K, type) ; Lehmann 5438 (K). 
This species and the following are distinguished from others of the genus 
by their very short, essentially globose corollas. From the following species, 
P. breviflora is separated by its chartaceous and small leaves and its slender 
habit. 
3. Psammisia globosa A. G. Smith, sp. no v. 
Frutex subscandens; laminis lanceolato-oblongis petiolatis basi attenuates 
apice acuminatis pinna tinerviis; inflorescentia breviter racemoaa; floribus 
glabris; calyce campanulato, limbo erecto; corolla subglobosa parva; stami- 
nibus aequalibus, filament is ad margin es pilosis, eonnectivis alter nis obscure 
bicalcaratis, tubulis gracilibus quam loculis pautlo brevioribus. 
Subs can dent shrub; branches elongate to several meters; branchlets terete, 
brownish, glabrous; petioles rugose, glabrous, stout, 3 to 5 mm, in diameter, 
10 to 20 mm. long, narrowly winged above; leaf blades lanceolate-oblong, 20 
to 35 cm, long, 3.5 to 9 cm. broad, attentuate at base, acuminate at apex, entire 
and slightly revolule at margins, coriaceous, glabrous, pinnate-veined, the mid- 
vein stout, raised on both surfaces, the secondary veins 5 to 8 per side, spread- 
ing, connected near margins, slightly raised on both surfaces, the veinlets 
reticulate, slightly raised or plane; inflorescence axillary, short-racemose, 6 to 
8 flowered, glabrous in all parts; racbis rugose, 7 to 12 mm. long; pedicels 
subrugose, 8 to 15 mm. long, subtended by a subcoriaceous oblong subacute bract 
about 2 mm. long, minutely bibracteolate near base, swollen distally; calyx 
tube subrugose, violaceous or subnigrescent, broadly campanulate, about 3 mm. 
long and 5 mm. in diameter at an thesis; limb erect, 1 to 2 mm. long including 
lobes, the lobes 5, broadly triangular, subacute, about 3 mm. across; corolla 
subglobose, 3 to 4 mm.- long, about 4 mm. in diameter (apparently quite mature), 
the lobes acute, about 1 mm. long; stamens 10, about 3.4 mm. long; filaments 
broad, nigrescent, about 1,5 mm. long, densely pilose at margins with hairs 
about 0.1 mm. long, leading imperceptibly into similar broad connectives, the 
connectives alternately obscurely 2-spurred; anther sacs stout, about 1.8 mm. 
long; tubules slender, cylindric-conical, about 1.3 mm. long, opening by broad 
clefts nearly as long; style rigid, subrugose, about as long as corolla, the 
stigma truncate; fruit subspherical, carnose, rich pink, up to 1 cm. in diameter, 
the calyx limb persistent 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected in 
Peru in 1835, by A. Mathews (no. 2077). 
Distribution : Andes of Peru, altitude 1,400 to 1,700 meters. 
Pebu. 
JuNfN: Schunke Hacienda, above San Ram6n, Macbri&e 5754 (F); Killip 
A Smith 24808 (N, Y). 
This is a beautiful plant with elongate branches and drooping leaves, the 
minute flowers forming delicate little axillary clusters. From the preceding 
it is distinguished by its larger, more coriaceous leaves and more robust habit. 
Explanation ok Platts 9,—Psamnn'«^o glohosa, from photograph of type sheet. About 
one-half natural size. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 389 
4. Psammisia graebnerrfaiia Hoer. Bot Jahrb. Engler 42: 304. 1909. 
Low shrub; branchlets terete, stout, brownish, glabrous; petioles rugose, 4 
to 12 mm. long, glabrous, winged above; leaf blades ovate-oblong, 7 to 30 cm. 
long, 4 to 10 cm. broad, cuneate at base, acute or short-acuminate at apex, sub- 
entire and slightly revolute at margins, glabrous, pinnate-veined, the secondary 
veins 3 or 4 to a side, ascending, with the midvein slightly impressed above, 
prominent beneath, the veinlets reticulate, nearly plane on both surfaces; in- 
florescence axillary, short-racemose, 8 to 16 flowered, glabrous In all parts; 
pedicels striate, 20 to 80 mm. long at maturity, each subtended by a coriaceous 
oblong bractlet about 3 mm. long, minutely bibracteolate near base, swollen 
distally; calyx strongly rugose, the tube short-cylindric, 4 to 5 mm. long and 
about 6 mm. in diameter at an thesis, the limb spreading, 3 to 4 mm. long in- 
cluding lobes, the lobes triangular, subacute, 2 mm. long; corolla urceolate, 9 
to 12 mm. long, about 0 mm. in diameter at base, contracted at throat, the 
lobes 2 to 3 mm. long; stamens 6 to 7.5 mm. long; filaments stout, dark 
castaneous, glabrous, 2 to 3 mm. long, leading into broad connectives, the con- 
nectives 2-spurred, alternately more slender and more obviously spurred; 
anther sacs stout, about 4.5 mm. long; tubules slender, 2 to 3 mm. long, open- 
ing by oval clefts nearly as long; style stout, nearly as long as corolla, the 
stigma truncate. 
Type locality : Rio PilatOn, Province of Pichincha, Ecuador, altitude 800 to 
1,000 meters. Type collected by Sodiro (no. 92/14). 
Distribution : Andes of Colombia and northern Ecuador, altitude 800 to 
3,100 meters. 
COLOMBIA: Triana (B). Purdie (G, K). 
Ctjn din a marc a : Bogotfi, Tracey 20 (K). El Pefion, southwest of Sibatfi, 
Pennell 2420 (Y). 
El Cauca : Triana 2670 (K, B). Canaan, Mount PuraeS, PenneU & fillip 
6519 (N, Y). Paletara, PenneU 6953 (Y). 
Nabino: P&ramo Chimbalan, Andr6 3028 (K). 
Eouadob. 
Pichincha: Rfo PilatOn, Sodiro 92/14 (B, type). Nanegal Valley, Sodiro 
92/3b (B). 
This species shows gradations to the following. Since their ranges are 
somewhat the same, they possibly hybridize. 
5. Psammisia lehmannii Hoer. Bot. Jahrb. Engler 42:305. 1909. 
Shrub; branchlets striate, brownish, glabrous; petioles rugose, 6 to 10 mm. 
long, glabrous, narrowly winged; leaf blades oblong or lanceolate-oblong, 9 to 
18 cm. long, 2 to 4 cm. broad, cuneate-attenuate at base, acute at apex, entire 
and strongly revolute at margins, thick-coriaceous, glabrous, pinnate-veined, 
the secondary veins 3 to 5 to a side, ascending, with the midvein Impressed 
above, prominent beneath, the veinlets reticulate, nearly plane on both surfaces; 
Inflorescence axillary near ends of branchlets, racemose, 10 to 20 flowered, 
glabrous in all parts; rachis subterete, 2 to 8 cm. long; pedicels rugose, 18 to 
40 mm. long, each subtended by a deciduous oblong bractlet about 3 mm. long, 
bibracteolate below the middle, 3 to 5 per centimeter of rachis; calyx strongly 
rugose, the tube short-cylindric, 3 to 4 mm. long and about 5 mm. in diameter 
at anthesis, the limb spreading, 3 to 5 mm. long including lobes, the lobes 
ovate-apiculate, 1 to 1.5 mm. long; corolla broadly conical, 8 to 12 mm. long 
at maturity, 7 mm. in diameter at base, contracted at throat, the lobes erect, 
thick-carnose, 1.5 to 2 mm. long; stamens 6.5 to 8.5 mm. long; filaments 
coherent at base, nigrescent, slightly puberulous dorsally near apex, about 2.5 
390 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
mm. long, narrowed above into short connectives, the connectives 2-spurred, the 
spurs rounded and alternately larger; anther sacs stout, 3.5 to 5 mm. long; 
tubules narrowly eylindric, 2.5 to 3 mm. long, opening by introrse clefts nearly 
their entire length; style stout, nearly as long as corolla, the stigma truncate; 
fruit eubspberical, up to 12 mm. or more in diameter, the calyx limb persistent. 
Type locality: Western slopes of P&ramo de Guanacas, Department of El 
Cauca, Colombia, altitude 2,700 to 3,000 meters. Type collected by Lehmann 
(no. 4961). 
Distbibutxon ; Andes of Colombia, altitude 2,000 to 3,000 meters. 
Colombia: P&ramo Purdei, Andrd 577 (K, Y). 
Cukdikamabca : La Selva, Tracey 270 (K). 
Huila: Balsillas, on Kto Balsillas, Rushy & Pennell 750 (F, Q, N, Y), 751 
(N, Y). 
AnhoquIa: Quebrada del Ato, above Bello, Archer 202 (N). 
El Cauca: Western slopes of PAramo de Guanacas, Lehmann 4961 (B, 
type, F, G). 
6. Psammisia ecuadorensis Hoer. Bot. Jahrb. Engler 42:308. 1909. 
Psammisia kraensliniana Hoer. Bot Jahrb. Engler 42:308. 1900. 
Psammisia puberula Hoer. Bot. Jahrb. Engler 42: 309. 1909. 
Low shrub; branchlets terete, brownish, glabrous or brown-puberulous; 
petioles rugose, subglabrous, 3 to 5 mm. long; leaf blades ovate-oblong, 8 to 
18 cm. long, 2.5 to 8 cm. broad, rounded or slightly subcordate at base, ob- 
tusely acuminate at apex, entire at margins, glabrous above, sparsely puberulous 
or glabrous beneath, 5 to 7 pli-nerved, the secondary nerves oriented near base, 
with the midnerve impressed above, prominent beneath, the veinlets reticulate, 
slightly raised on both surfaces; inflorescence axillary near ends of branchlets, 
racemose, 4 to 1G flowered ; rachis subterete, puberulous or glabrous, 7 to 15 cm. 
long; pedicels about 2 per centimeter of rachis, subterete, 8 to 25 mm. long, each 
subtended by a small deciduous bractlet, deciduously bibracteolute near base 
with linear bractlets up to 4 mm. long; calyx tube puberulous or glabrous, 
subcylindric or subsphcrical, 2 to 4 mm. long and 3 to 5 mm. in diameter at 
an thesis; limb suberect, large, 7 to 12 mm. long including lobes, the lobes 3 
(rarely 2 or 4), sometimes in a state of fusion, triangular, acute, 4 to 8 mm. 
long, 5 to 8 mm. across base; corolla subcylindric, 14 to 35 mm. long, 5 to 6 
mm. in diameter at base, contracted distally, glabrous or puberulous; stamens 
10 to 12 mm, long; filaments dark castaneous, distinct, about 4 mm. long, densely 
pilose distally with pale straight hairs up to 0.6 mm. long, leading into slightly 
narrower connectives, the connectives 2-spurred, alternately narrower and 
more obviously spurred {1.5 mm. across spurs, about 0.6 mm. immediately 
below); anther sacs produced at base, 5 to 6 mm. long; tubules cylindric, 2 
to 4 mm. long; style subterete, about as long as corolla, the stigma truncate. 
Type locality: Ecuador. Type collected by Sodiro (no. 92/9). 
Distribution : Andes of Ecuador and possibly of southern Colombia, altitude 
1,400 to 3,000 meters. 
Eouadoe oe Colombia : Andre (K). Salitu, Andr6 1045 (K). Mindo, AmIrt 
(K). Cascajal, Andr4 3718 (K). Miebli, Andr6 (K). San Florencio, 
Andr4 (K). Alto San Juan, Andr6 2070 (K). 
Eouadoe: Sodiro 92/9 (B, type). Corazfln, Andri (K). San Pablo, Andrd 
(K). Cauzaclto, Guanasa, Sodiro 92/7 (B, type of P. kraensliniana). 
Piohincha; Andes near Quito, Couthwy (G). Near Bolona, Sodiro 92/4 
(B, type of P. pub&rula). Nanegal Valley, Sodiro 92/6 (B). 
Chimbobazo : Mount Chimborazo, Spruce C1G9 (K). 
El Obo: Between La Chorita and Portovelo, Hitchcock 21166 (N, X). 
Azuay; Cuenca, Lehmann K174 (K). 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 391 
Hoerold's grounds for describing three species in this coherent group are not 
clear. The only conceivable distinctions are those of degree. For instance, the 
leaves of P. puberula are truncate at base, as compared to the faintly sub- 
cordate leaves of the other '* types "; the corollas vary from 17 mm. to 35 mm. 
in length, a condition due to age alone. Of the above specimens, Hitchcock 
21106 is the most nearly glabrous; the three " types" are Identical in degree 
of pubescence. 
As here regarded, this species is very well marked and is quite unmistakable, 
having as a close relation only the following, from which it is easily distin- 
guished by the key characters. 
7. Fsammisia ferruginea A. C. Smith, sp. nov. 
Frutex; ramls ramulisque dense ferrugineo-pilosls; laminis oblongis vel 
ovato-oblongis breviter petiolatis ferrugineo-pilosls basi truncatis vel subcor- 
datis apice caudato-acumlnatis 5 ad 7 plinerviis; inflorescentla longe racern- 
osa dense ferrugineopilosa; calyce campanulato, limbo suberecto quam tubo 
duplo longlore 5-lobato, lobis magnis lanceolato-triangularibus; corolla cylindrica 
5-lobata; staminibus aequaltbus alternatim bicalcaratis, calcaribus subacutis, 
fllamentis laxe connatis superne pilosis, tubulls quam loculis paullo 
brevioribus. 
Shrub; branchlets subterete, striate, densely pilose (hairs ferruginous, 
spreading, 1 to 1.5 mm, long); petioles subrugose, 3 to 5 mm. long, pilose 
as the branchlets; leaf blades oblong or ovate-oblong, 10 to 14 cm. long, 3.5 to 
0 cm. broad, truncate or subcordate at base, caudate-acuminate at apex, en- 
tire at margins, coriaceous, ferruginous-pilose on both surfaces (hairs spread- 
ing, about 1 mm. long, 5 to 10 per square millimeter on lower surface, 
sparser and deciduous above), 5 to 7 pli-nerved, the secondary nerves oriented 
near base, arcuate-ascending, with the midnerve impressed above, prominent 
beneath, the veinlets copiously reticulate, slightly raised on both surfaces; 
inflorescence axillary, long-racemose, 10 to 25 flowered, densely ferruginous- 
pilose on all external surfaces (hairs up to 2 mm. long); rachis stout, 8 to 18 
cm. long; pedicels subterete, 8 to 15 mm. long, bracteate at base and bibracteo- 
late near base (bractlets lanceolate, 10 to 12 mm. long); calyx tube short- 
conical or campanulate, 4 to 5 mm. long, about 4 mm. in diameter at antbesis; 
limb about 20 mm. long Including lobes, the lobes 5, lanceolate-triangular, 
7 to 8 mm long, about 4 mm. broad, parallel-veined; corolla cylindrlc, 32 to 
36 mm. long at maturity, 4 to 5 mm. In diameter near base, contracted at the 
long throat, the lobes oblong, subacute, 3 mm. long, 1.5 mm. broad; stamens 10, 
about 13 mm. long; filaments dark castaneous, loosely connate in a tube, 
about 4 mm. long, dorsally pilose distally with ferruginous hairs, leading 
into similar slender connectives, the connectives alternately two-spurred, 
the spurs subacute, obvious; anther sacs about 6 mm. long; tubules sub- 
cylindric, about 4 mm. long, opening by clefts more than half as long; style 
exserted, the stigma truncate or subpeltate. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected near 
Pilispi, "New Grenada," altitude about 1,200 meters, by W. Lobb (no. 89). 
Distribution : Probably limited to the Andes of southern Colombia, 
altitude 1,200 to 2,400 meters. 
Colombia. 
El Cauca : Timbiqul, Lehmann K173 (K). 
Nabino : Between Tuquerres and San Pablo, Triana 2081 (K). San Pablo, 
Andr4 3341 (K). 
392 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Because of confusion concerning the Lobb collections, it is impossible to 
determine the precise locality of the type specimen, which is the best sheet 
of those cited. Most of the Lobb plants appear to have been collected in 
Peru, in spite of the usual notation "Columbia" or "New Grenada." The 
present specimen, however, agrees so well with sheets which come from 
southern Colombia that I am inclined to believe it also was collected there. 
Psammisia ferruginea is unmistakably distinct, being sharply marked from 
the preceding by its ferruginous tomentum, as well as by other characters 
mentioned in the key. The necessity of describing a new species of this 
alliance, while at the pa me time reducing two names of Hoerold as indicated 
above, is regrettable but unavoidable. 
Explanation of Plate 10.—Psammtsia ferruginea, from photograph of type sheet. 
About one-half natural size. 
8. Psammisia grandiflora Hoer. Bot. Jahrb. Engler 42:305. 1909. 
Low shrub; branchlets terete, glabrous, cinereous; petioles rugose, 3 to 5 
mm. long, glabrous, narrowly winged above; leaf blades ovate, 8 to 15 cm. long, 
3 to 6 cm. broad, cuneate at base, caudate-acuminate at apex, entire and 
revolute at margins, glabrous, pinnate-veined, the midvein slightly impressed 
above, prominent beneath, the secondary veins 2 to 4 to a side, oriented in 
basal half, arcuate-ascending, nearly plane above, raised beneath, the veinlets 
reticulate, plane above, slightly raised beneath; inflorescence axillary near 
ends of branchlets, fasciculate or short-racemose, 2 to 4 flowered, essentially 
glabrous in all parts; pedicels rugose, 10 to 15 mm. long, each subtended by 
a triangular bractlet about 2 mm. long, minutely bibracteolate below middle, 
obscurely articulate with calyx; calyx tube obconical, 4 to 9 mm. long, 5 to 8 
mm. in diameter at summit at anthesis; limb 3 to 5 mm. long, nearly truncate 
(lobes 5, apiculate, 1 to 2 mm. long) ; corolla membranous, subcylindric, 25 
to 40 mm. long at maturity, 8 to 15 mm. in diameter at base, tapering gradually 
distally, the lobes elongate-triangular, about 3.5 mm. long; stamens 14 to 
17 mm. long; filaments castaneous, broad (2.5 mm. across base), distinct or 
slightly coherent at base, 5 to 6 mm. long, marginally pilose distally with a 
few pale hairs about 0.3 mm. long, leading into slightly narrower connectives, 
the connectives 2-spurred (about twice as broad across spurs as immediately 
below); anther sacs incurved at base, stout, 6 to 7 mm, long; tubules cylindric, 
5 to 10 mm. long; style about as long as corolla. 
Type locality: La Ceja, Department of Antioqufa, Colombia, altitude 2,200 
meters. Type collected by Triana (no. 37). 
Distribution : Central Cordillera of Colombia, altitude 2,200 to 3,300 meters. 
Colombia : Linden 951 (K). 
AntioquIa: La Ceja, Triana 37 (B, type). 
Caldas: Rio San Rafael, below Cerro Tatamfi, Pennell 10403 (Y), Cerro 
TatamA, Pennell 10458 (Y), 10459 (Y). 
This beautiful species is distinguishable by its large flowers, which are some- 
times suggestive of those of Semiramisia. In leaf character and in general 
habit it resembles P. pennellii, from which It differs by the unusual floral 
development. 
0. Psammisia ramiflora Klotzsch, Linnaea 24:44. 1851. 
Psammisia symphystemona Donn. Smith, Bot. Gaz. 20: 291. 1895. 
Low shrub, usually epiphytic; branchlets slender, terete, glabrous, with a 
deciduous brownish bark; petioles rugose, 3 to 5 mm. long, glabrous, narrowly 
winged above; leaf blades oblong or ovate-oblong, 8 to 17 cm, long, 3 to 7 cm. 
SMITH—AMERICAN SPECIES OF THXBAT7DIEAE 393 
broad, cuneate at base, caudate-acuminate at apex, entire at margins, glabrous, 
5-pli-nei^^ the secondary nerves oriented slightly above base, ascending near 
margins, with the midnerve slightly impressed or nearly plane above, promi- 
nent beneath, tin veinlets copiously reticulate, raised on both surfaces; inflores- 
cence axillary, subiwwiculate or short-racemose (rachis less than 1 cm. long), 
essentially glabrous in all parts, 4 to 15 flowered; pedicels slender, striate, 8 
to 25 mm. long, each subtended by an oblong bractlet about 2 #m. long, minute- 
ly bibracteolate near base; calyx-tube subcyllndric or broadly"obconie^il, about 
3 mm. long and 2.5 mm. in diameter at summit at an thesis; limb 3.5 to 4 mm. 
long including lobes, the lobes S, triangular, acute, about 1.5 mm, long; corolla 
subcyllndric, 20 to 30 mm. long, 4 to 5 mm. in diameter near base, contracted 
at the long throat, the lobes oblong, about 3 mm. long; stamens 10 (rarely 12, 
in which case all the flower parts are 6-merous and in a state of partial fusion), 
8 to 9 mm. long; filaments membranous, castaneous, connate for their entire 
length, about 4 mm. long, leading into narrow nigrescent connectives, the con- 
nectives marginally pilose (hairs pale, up to 0.2 mm. long), 2-spurred, alternately 
slightly longer, narrower, and more obviously spurred; anther sacs 3 to 3.2 mm. 
long; tubules distinct to base or semicoherent, cylindric-conical, 2 to 3 mm, 
long, opening by oval clefts nearly as long; stigma truncate. 
Type locality: Veraguas, Panama. Type collected by Warszewicz. 
Distribution : Costa Rica and Panama, altitude 1,400 to 2,000 meters. 
Costa Rica: WerckU (?) 26 (B). Cascajal, Lankester 109 (K), K247 (K). 
Agua Caliente, Stork 1313 (F). 
Alajtjela: Mariposa, Cooper 5842 (B, G, N, type of P. symphystemona). 
San Jos£: La Palma, Stmdley 38211 (N); Werckte 11606 (N). 
Cabtago: Alto de La Estrella, Standley 39275 (N). 
Panama. 
Veraguas: Warszewicz (B, type). 
PANAMA: Cerro Azul, Goldman 1870 (N). 
A well-marked species by its small anthers and connate filaments. A local 
name in Costa Rica is " colmillo." 
10. Fsammisia urichiana (Britton) A. C. Smith. 
Ca/vendishia urichiana Britton, Bull. Torrey Club 48:336. 1921. 
Low shrub, usually epiphytic; branchlets terete, slender, brownish, glabrous; 
petioles subterete, 7 to 10 mm. long, glabrous, narrowly winged above; leaf 
blades ovate or oblong-ovate, 15 to 20 cm. long, 4 to 8 cm. broad, cuneate at 
base, caudate-acuminate at apex, entire and slightly revolute at margins, 
glabrous, thin-coriaceous or chartaceous, 5-pli-nerved, the secondary nerves 
oriented near base, with the midnerve slightly impressed above, prominent 
beneath, the veinlets copiously reticulate, slightly raised on both surfaces; 
Inflorescence axillary, subfascieulate or short-racemose (rachis not exceeding 
8 mm. in length), essentially glabrous in all parts, 4 to 8 flowered; pedicels 
stria te, 8 to 15 mm. long, each subtended by an oblong brautlet about 3 mm. 
long, minutely bibracteolate near base; calyx tube subcyllndric or broadly ob- 
conlcal, 2 to 4 mm. long, about 3 mm. in din meter at anthesis; limb about 
3 mm. long including lobes, the lobes 5, triangular, apiculate, 1 mm. long or 
less; corolla subcyllndric, 23 to 27 mm. long, about 5 mm. In diameter, con- 
tracted above, the lobes elongate-triangular, about 3 mm. long; stamens S to 
9 mm. long; filaments castaneous, slender, distally pilose at margins with 
sparse hairs about 0.2 mm. long, distinct, 4 to 4.5 mm. long, leading into 
slender connectives, the connectives 2-spurred (alternately narrower and more 
obviously spurred), the spurs acute, twice as broad as the connective imme- 
394 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
diately below; anther sacs 3.5 to 4 mm. long; tubules distinct or coherent at 
base, elongate-conical, about 2 mm. long; stigma truncate. 
Type locality: Heights of Aripo, Trinidad. Type collected by Britton and 
Freeman (no. 2364). 
Distribution : Apparently rare in mountains of Trin'dta, British Guiana, 
and Venezuela. 
Tvnidad: Heights of Aripo, Britton & Freeman 2364 (N, Y, type). 
IftmsH Guiana: Mount Boraima, 1,700 meters, Ule 8714 (B, Go). 
Venezuela. 
Aeaoua: Between El Portachuelo and Ocumare, Pittier 11377 (N). Colonia 
Tovar, 2,000 meters, John 1201a (N). 
The above-cited specimens are indubitably conspeciflc, in spite of the unusual 
distribution. This species, which has been confused with P. guianemU, Is 
quite distinct from that on the basis of its small anthers and comparatively 
thin leaves. 
11. Ps&mmisia pauciflora Griseb., sp. nov. 
Frutex; laminis oblongis basi cuneatis apice caudato-acuminatis 5-pli-nerviis; 
inflorescentia subfasciculata vel breviter racemosa glabra; calyce subcylindrico, 
limbo suberecto tubum subaequante; corolla subcylind rica; fllamentis superne 
pilosis, connectivis bicalcaratis, tubulls loculos subaequantibus. 
Shrub; branchlets terete, brownish, glabrous; petioles slightly rugose, 6 to 10 
mm. long, glabrous, narrowly winged above; leaf blades oblong, 15 to 25 cm. 
long, 5 to 7 cm. broad, cuneate at base, caudate-acuminate at apes, entire at 
margins, glabrous, thick coriaceous, 5-pll-nerved, the secondary nerves oriented 
near base, with the midnerve impressed above, strongly prominent beneath, the 
veinlets copiously reticulate, slightly raised on both surfaces; inflorescence 
axillary, subfasciculate or short-racemose (rachis seldom up to 1 cm. long), 
essentially glabrous in all parts, 6 to 10 flowered; pedicels striate, 10 to 15 mm. 
long, each subtended by an oblong acute bractlet about 2 mm. long, minutely 
bijDracteolate near base; calyx tube subcylindric or broadly obconical, 2.5 to 3 
mm. long, about 4 mm. in diameter at anthesis; limb suberect, about 3 mm. 
long including lobes, the lobes 5, apiculate, usually less than 1 mm. long; corolla 
subcylindric, 19 to 27 mm. long, 4 to 5 mm. across base, contracted at the long 
throat, the lobes elongate-triangular, 2.5 to 3 mm. long; stamens 10, 6 to 8 mm. 
long; filaments castaneous, free, distally pilose, especially at margins, with pale 
spreading hairs about 0.3 mm. long, leading into slender connectives, the con- 
nectives 2-spurred, alternately longer, narrower and more obviously spurred, 
the spurs subacute, about twice as broad as the connective immediately below; 
anther sacs 2.5 to 3 mm. long; tubules laterally connate at base, free distally, 
elongate-conical, 2 to 3 mm. long; stigma truncate; fruit subspherical, up to 
1 cm. in diameter, the calyx limb persistent. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected at San 
Gov&n, Peru, by Lechler (no. 2386). 
Distribution : Andes of southeastern Columbia, Peru, and northern Bolivia, 
altitude 750 to 2,000 meters. 
Colombia. 
Cundinamarca : Susumuco, Andrd 958 (K). 
Meta: Villavicencio, A.ndr4 (K). Forest of Upln, Antfrd (K). 
Bolivia. 
La Paz: Mapiri, Buchtien 1178 (B), 2013 (N) ; Bang 1516 (B, F, N, Y); 
Rushy 2037 (N, Y). Hacienda Slmaco, Tipuani, Buchtien 5514 (N, Y), 
7431 (B, N, Y). 
SMITH—AMERICAN" SPECIES OJT THIBAUDIEAE 395 
The species has not been previously described, but the name given by Grise- 
bach w is fitting and has been used in this treatment. It is a coherent species, 
forming with P. wichiana and P. elliptical a distinct group within the genus. 
The specimens collected by AndrS have slightly broader leaves than the Bolivian 
specimens, but appear eonspeciflc. 
12. Fsammisia elliptica (Rusby) A. C. Smith. 
Mctoleania elliptica Bushy, Bull. N. Y. Bot. Gard. 8: 111. 1912. 
Shrub; branchlets terete, striate, glabrous, brownish; petioles slightly 
rugose, 8 to 10 mm, long, glabrous, narrowly winged above; leaf blades elliptic- 
ovate, 16 to 18 cm. long, 8 to 9 cm. broad, cuneate at base, caudate-acuminate 
at apex (acumen abrupt, slender, up to 15 mm. long), entire at margins, 
glabrous, thick-coriaceous, 5 to 7 pli-nerved, the secondary nerves oriented 
slightly above base, with the midnerve Impressed above, very prominent be- 
neath, the veinlets copiously reticulate, nearly plane above, raised beneath; 
Inflorescence axillary, short-racemose (rachis less than 1 cm. long), 8 to 12 
flowered, glabrous in all parts; pedicels striate, 14 to 18 mm. long, each sub- 
tended by an ovate acute bractiet about 1.5 mm. long, minutely bibracteolate 
near base; calyx tube short-cylindric, about 2 mm. long and 2.5 mm. in 
diameter at anthesis; limb spreading, about 2.5 mm. long, nearly truncate, the 
5 teeth apiculate; corolla subcylindric, 20 to 25 mm. long, about 4 mm. In 
diameter, contracted above, the lobes oblong, 2 to 3 mm. long; stamens about 
8 mm. long; filaments dark castaneous, slender, distinct, about 3 mm. long, 
distally pilose at margins with stiff spreading hairs about 0.2 mm. long, leading 
into slender connectives, the connectives 2-spurred, alternately narrower, 
longer, and more obviously spurred, the spurs subacute, prominent; anther 
sacs 3 to 3.5 mm. long; tubules laterally connate at base, free distally, elongate- 
conical, 2.5 to 3 mm. long; style up to 30 mm. long, the stigma subhemispherical. 
Type locality: KIo Pelichuco, Department of La Paz, Bolivia, altitude 
about 1,200 meters. Type collected by R, S. Williams {no. 2487). 
Distribution : Known only from the type collection. 
Bouvia. 
La Paz: Rio Pelichuco, R. B. Williams 2487 (Y, type). 
Very closely allied to the preceding, from which it differs only in its broader 
leaves. This character alone would hardly appear to be of specific value, but 
since no intermediate specimens are known the name may be retained. 
13. Fsammisia killipii A. C. Smith, sp. nov. 
Frutex parvus; la minis late ovatis basi subcordatis apice acutis 7 ad 9 pli- 
nerviis; infiorescentia racemosa glabra; floribus longe pedicellatis; calyce 
campanulato, limbo tubum subaequante; corolla late conica; staminibus a equal- 
ibus, filamentis crassis in connectiva erassa bicalcarata ducentibus, tubulis 
subcoriaceis connatis vel distinctis quam loculis multo brevioribus. 
Low shrub in thickets; branchlets subterete, castaneous, glabrous; petioles 
subterete, slightly angled, 5 to 7 mm. long, glabrous; leaf blades broadly ovate, 
10 to 14 cm. long, 6 to 9 cm. broad, subcordate at base, acute at apex, entire 
or shallowly crenate at margins, glabrous, 7 to 9 pli-nerved, the secondary 
nerves oriented slightly above base, arcuate-ascending, with the midnerve 
slightly impressed or nearly plane above, prominent beneath, the veinlets copi- 
ously reticulate, raised on both surfaces; inflorescence axillary, racemose, 8 to 
12 flowered, glabrous in all parts; rachis subterete, 2.5 to 4 cm. long; pedicels 
**Lechl. Berb. Amer. Austr. 58. 1857. 
396 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
striate, stout, 18 to 35 mm. long, each subtended by an oblong acute bractlet 3 
to 4 mm. long, bibracteolate near base, swollen distally; calyx tube broadly 
campanulate, 4 to 5 mm. long, about 6 mm. in diameter at summit at an thesis; 
limb 3 to 4 mm. long including lobes, (be lobes ovate, apiculate, about 2 mm. 
long; corolla broadly conical, 17 to 20 mm. long, 8 to 9 mm. in diameter near 
base, contracted to about 3 mm. in diameter at throat, the lobes 2.5 mm. long; 
stamens 10, 9 to 11 mm. long; filaments stout, coherent at base, dark castaneous, 
glabrous, about 4.0 mm. long, leading into thick connectives which are continued 
up the tubules dorsally, the connectives 2-spurred, alternately narrower and 
more noticeably spurred (spurs about 2 mm. across, connectives immediately 
below them about 1.5 mm. across) ; anther sacs stout, about 7 mm. long; 
tubules laterally connate or partially distinct, about 2 mm, long, opening by 
introrse clefts their whole length; style about as long as corolla, the stigma 
subhemispherical. 
Type in the herbarium of the New York Botanical Garden, collected in low 
thicket ("machimbi ") at Cuatro Esquinas, Department of El Cauca, Colombia, 
altitude 1,700 to 1,800 meters, June 5, 1922, by F. W. Pennell and E, P. Killip 
(no. 6324). 
Distribution : Known only from the type collection. 
The flowers of this species approach those of P. grandifiora in girth, but they 
are shorter and the species differs markedly in other points. The tubules of the 
anthers, which are unusually short, appear to consist of the same dark eastane- 
ous coriaceous tissue as the filaments and connectives. Each anther thus 
seems to be fitted with a callose cap and presents an appearance not to be 
confused with that of any other species. The many-nerved subcordate-based 
leaves are also distinctive. 
14. Psammisia recurvata Britton, Bull. Torrey Club 48: 335. 1921. 
Subscandent shrub; branchlets stout, terete, brownish, glabrous; pedicels 
stout, rugose, 12 to 18 mm, long, glabrous, narrowly winged above; leaf blades 
thick-coriaceous, broadly ovate-oblong, 15 to 30 cm. long, 10 to 13 cm. broad, 
cuneate or subattenuate at base, long-acuminate at apex, subentire or shal- 
lowly crenate at margins, glabrous, 7 to 9 pli-nerved, the secondary nerves 
oriented slightly above base, arcuate-ascending, with the midnerve impressed 
above, prominent beneath, the veinlets reticulate, plane above, slightly raised 
beneath; inflorescence axillary, short-racemose, 5 to 12 flowered, glabrous in all 
parts; rachis stout, sub terete, 10 to 25 mm. long; pedicels striate, 20 to 40 mm. 
long, each subtended by a deciduous oblong acute bractlet 3 to 4 mm. long, 
minutely bibracteolate near base; calyx tube (past maturity) short cylindric 
or subspherlcal, about 5 mm, long and 4 mm. in diameter; limb about 6 mm. 
long including lobes, the lobes ovate, apiculate, about 2 mm. long; corolla 
not seen; stamens 10 (?) ; filaments thick, nigrescent, firmly connate, in- 
complete in our specimen but probably about 3 mm. long, leading into nar- 
row connectives, the connectives glabrous, alternately slightly 2-spurred; an- 
ther sacs about 5 mm. long; tubules narrowly cylindric, 3.5 to 4 mm. long, 
opening by oval clefts about half their length; style 25 to 30 mm. long, the 
stigma peltate; fruit spherical, up to 15 mm. in diameter, the calyx limb de- 
current. 
Type locality : Mount Tocuche, Trinidad. Type collected by Britton, Hazen, 
and Mendelson (no. 1294). 
Distribution : Mountains of Trinidad. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 397 
Tbinidad: Cruger 1709 (N). Mount Tocuche, Brittoti, Eazen and Mendelson 
1294 (N, Y, type). Morne Bleu, Broadway 6211 (K). Heights of 
Aripo, Broadway 7121 (K, N). 
Notable in its robust habit and large many-nerved ciuieate-based leaves. 
The calyx lobes are often in a state of eemifusion. In the original description 
the corolla is described as " about 4 cm. long, red, the short limb white," but 
in the type specimen no corolla is available. Three imperfect stamens are 
present, which were not mentioned in the original description. 
15. Fsammisia elegans Rusby, Descr. S. Amer. PI. 78, 1920. 
Subscandent shrub, 8 to 12 meters high; branchlets terete, violaceous or 
cinereous, glabrous; petioles subterete, glabrous, nigrescent, 8 to 10 mm. long; 
leaf blades broadly ovate or oblong-ovate, 12 to 20 cm, long, 6 to 11 em. broad, 
abruptly cuneate at base, caudate-acuminate at apex, entire at margins, 
glabrous, 7 to 9 pli-nerved, the secondary nerves oriented near base, with the 
midnerve slightly impressed above, prominent beneath, the veinlets reticulate, 
slightly raised on both surfaces; inflorescence axillary near ends of branchlets, 
short-racemose, glabrous in all parts, S to 15 flowered; rachls subterete, S to 
20 mm. long; pedicels striate, 25 to 40 mm. long, each subtended by a triangular 
bractlet about 2 mm. long, minutely bibracteolate below middle, swollen 
dlstally; calyx tube slightly rugose, campanulate, 3.5 to 4 mm. long and 4 
mm. in diameter at anthesis; limb 4 to 5 mm. long including lobes, the lobes 3, 
4, or B, often in a state of semifusion, ovate, apiculate, 2 to 3 mm. long; 
corolla subcylindric, 20 to 27 mm long, 5 to 7 mm. in diameter near base, 
contracted at throat, the lobes about 2 mm. long, reflexed when mature; 
stamens 10 to 12 mm. long; filaments dark castaneous, distinct, glabrous, 3 to 5 
mm. long, leading into slender connectives, the connectives alternately 2 spurred, 
the spurs subacute, slightly broader than the connective immediately below; 
anther sacs 5 to 6 mm. long; tubules about 3 mm. long; stigma truncate. 
Type locality : Las Nubes, Santa Marta Mountains, Department of Mag- 
dalena, Colombia, altitude about 1,400 meters. Type collected by H, H, Smith 
(no. 1554). 
Distribution : Known only from the type collection. 
Colombia. 
Maodalena : Las Nubes, Santa Marta Mountains, E. JET. Smith 1554 (F, N, 
T, type). 
Probably most closely related to the preceding, from which it differs mark- 
edly by the thinner leaves, which are more rounded at the base, and by the dis- 
tinct filaments. The calyx lobes are commonly reduced in number. 
16. Psammisia sodiroi Hoer. Bot. Jahrb. Engler 42:306. 1909. 
Shrub; branchlets subterete, often striate, brownish, glabrous; petioles sub- 
rugose, subterete, often nigrescent, 5 to 8 mm. long; leaf blades oblong or ovate- 
oblong, 13 to 25 cm. long, 5 to 9 cm. broad, broadly cuneate at base, long- 
acuminate at apex, entire and slightly revolute at margins, glabrous, pinnate- 
veined, the midvein stout, nearly plane above, very prominent beneath, the 
secondary veins 4 to 6 to a side, spreading, connected near margins, nearly plane 
above, prominent beneath, the veinlets copiously reticulate, slightly raised on 
both surfaces; inflorescence axillary, subfasciculate or short-racemose (rachls 
stout, not more than 5 mm. long), glabrous in all parts, 6 to 20 flowered; pedicels 
subrugose, 10 to 15 mm. long, each subtended by an oblong bract 2 to 3 mm. 
long, minutely bibracteolate near middle; calyx tube campanulate, subnigres- 
cent, 2 to 2.5 mm. long, about 4 mm. in diameter at anthesis; limb about 3 mm. 
long including lobes, the lobee 5, ovate, acute, about 2 mm. long and 3 mm. 
398 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
broad, slightly thickened at margins; corolla cylindric-conieal, 11 to IS mm. 
long, about 5 mm. in diameter near base, the lobes 2 mm. long; stamens about 
7 mm. long; filaments subnigrescent, loosely coherent at base, sparsely pilose 
at margins, about 2 mm. long, leading into broad connectives, the connectives 
2-spurred, the spurs alternately sub acute and rounded; anther sacs sharply 
incurved at base, 3 tci 4 mm. long; tubules cylindric, narrowed, about 3 mm. 
long; stigma truncate. 
Typh locality: Nanegal Valley, Province of Pichincha, Ecuador. Type col- 
lected by Sodlro (no. 92/4b). 
Distribution : Andes of northern Ecuador and southern Colombia. 
Colombia: Andrd (K). 
Nabino ; San Pablo, Andrd 3833 (K). 
Ecuador: Mindo Valley, Sodiro 92/12 (B). 
Pichincha: Nanegal Valley, Soddro 02/4b (B, type). Mount Pichincha, 
about 2,500 meters, Jameson 622 (K, N). Pululague, Quito, 2,300 to 
2,700 meters, Lehmann 5439 (K). Niebli, Andr6 3793 (K). 
Marked from all other members of the genus by its numerous secondary 
nerves. The short corollas also are characteristic. 
17. Psammisia columblensis Hoer. Bot. Jahrb. Engler 42:303. 1909. 
Slender shrub; branchlets stramineous, striate, glabrous; petioles rugose, 
glabrous, subnigrescent, 4 to 6 mm. long; leaf blades oblong, 9 to 12 cm. long, 
2.5 to 3.5 cm. broad, cuneate at base, obtusely long-acuminate at apex, entire 
at margins, essentially glabrous, 5-pli nerved, the secondary nerves oriented 
near base, ascending, with the midnerve slightly impressed above, prominent 
beneath, the veinlets copiously reticulate, slightly raised on both surfaces; 
inflorescence axillary near ends of branchlets, racemose, essentially glabrous 
In all parts, 8 to 12 flowered; rachis striate, subterete, 5 to 6 cm. long; pedicels 
striate, slender at base, 20 to 33 mm. long, each subtended by an oblong bract 
about 2 mm. long, bibracteolate near middle, swollen distally; calyx tube 
rugose, campanulate, 2.5 to 3 mm. long, about 3 mm. in diameter at anthesis; 
limb 3 mm. long Including lobes, the lobes 5, ovate, apiculate, 2.5 mm. long and 
3 mm. broad, often thickened at margins; corolla subcylindric, often falcate, 
20 to 27 mm. long, about 6 mm. in diameter at base, contracted at the long 
throat, the lobes oblong, about 2 mm. long; stamens about 13 mm. long; fila- 
ments castaneous, firmly connate in a tube, sparsely pilose at distal margins, 
about 4 mm. long, leading into slender connectives, the connectives alternately 
2-spurred, the spurs subacute, slightly broader than the connective immediately 
below; anther sacs 6.5 mm. long; tubules subcylindric, distinct or coherent at 
base, 4.5 mm. long; stigma truncate or subpeltate. 
Type locality : Central Andes of Popayfin, Department of El Cauca, Colom- 
bia, altitude 2,500 to 2,800 meters. Type collected by Lehmann (no. 4452). 
Distribution : Known only from the type collection. 
Colombia. 
El Cauca: Central Andes of Popayftn, Lehmann 4452 (B, type). 
The present species is of dubious affinity but is probably most closely related 
to P. falcata or P. lanceolata, from which it is distinguished by the connate 
filaments and slender habit. 
18. Psammisia macrophylla (H. B. K.) Klotzsch, Linnaea 24:45. 1851. 
Thtbaudia macrophylla H. B. K. Nov. Gen. & Sp. 3: 270. 1818. 
Spreading shrub 2 to 6 meters high; branchlets terete, with a glabrous 
deciduous reddish brown bark; petioles subcylindric, terete, 5 to 10 mm. long, 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 399 
glabrous; leaf blades oblong or lanceolate-oblong, 15 to 35 cm. long, 3 to 11 cm. 
broad, truncate or broadly cuneate at base, long-acuminate at apex, entire at 
margins, glabrous, dull olivaceous above, reddish brown beneath, 5 to 7 pll- 
nerved, the secondary nerves oriented slightly above base, with the midnerve 
impressed above, prominent beneath, the veinlets reticulate, plane or slightly 
raised on both surfaces; inflorescence axillary, short-racemose, essentially 
glabrous in all parts, 10 to 25 flowered; rachis sub terete, dark castaneous, 
stout, 2 to 4 cm. long; pedicels subterete, lightly striate, 18 to 40 mm. long, 5 
to 10 per centimeter of rachis, each subtended by a subcoriaceous oblong 
bractlet about 2 mm. long, minutely bibracteolate near base; calyx tube broadly 
campabulate, 5 to 6 mm. long, about 6 mm. In diameter at summit at anthesis; 
limb thick-coriaceous, 4 to 7 mm. long including lobes, the lobes usually 5 
(often 3 or 4. in a state of semifuslon), ovate, apiculate, 2 to 4 mm. long; 
corolla subcylindric or elongate-urceolate, 22 to 30 mm. long, about 7 
mm. in diameter at base, contracted to the long throat, the lobes oblong, 
2.5 to 5 mm. long; stamens 8 to 12 mm. long; filaments dark castaneous, 
distinct, glabrous, 3 to 4 mm. long, leading into more slender connectives, the 
connectives 2-spurred, alternately narrower and more obviously spurred, the 
spurs subacute, anther sacs 5 to 6 mm. long; tubules distinct to base or 
frequently laterally connate, 2.5 to 4.5 mm. long; style slightly exserted in 
mature flowers, the stigma truncate; fruit subspherical, 10 mm. or more In 
diameter, the broad coriaceous calyx limb persistent. 
Type locautt: Andes of Popay&n, Department of El Cauca, Colombia, alti- 
tude about 2,000 meters. Type collected by Humboldt and Bonpland. 
Distetbutton : Andes of southern Colombia, altitude 1,400 to 2,700 meters. 
Colombia: Lehmann K180 (K). Capllla, Lehmann BT965 (K, Y). 
Tolima (?): Quindto Andes, Humboldt <£ Bonpland (B). 
Caldas: Santuario, Pcnnell 10308 (X), 10315 (Y). 
El Valle: La Cumbre, Pennell & KUlip 5751 (B, N, Y). 
El Cauca: Popayfin and vicinity, Triana 2669 (B, K); Lehmann 8417 
(F, G, N), BT439 (Y), BT039 (K, Y); Eartweg 1216 (B, K, Y) ; 
Pmnell & KttUp 6369 (N, Y), 8130 (Y), 8275 (N, Y), 8305 (N, Y) ; 
PmneU 8267 (N, Y). 
Nabino : Alto de Arardo, Triana 2674 (B). 
This species evidently is limited in geographic range to the Central and 
Western Cordillera of southern Colombia. It is often confused with P. faloata, 
but may be distinguished by its strictly glabrous fleshy filaments. It may also 
be noted that the racemes are comparatively short, with crowded flowers. 
ID. Psammisia guianensis Klotzsch, Linnaea 24: 43. 1851. 
Psammisia leucostoma Benth.; Meissn, in Mart. PI. Bras. 7:127. 1863. 
Chupalm guianense Kuntze, Rev. Gen. PI. 2: 384. 1891. 
Chupalon Xeucostomum Kuntze, Rev. Gen. PI. 2:384. 1891. 
Psammisia ulei Hoer. Verh. Bot. Ver. Brand. 50:92. 1909. 
Shrub; branchlets terete, slender, glabrous, brownish, sometimes puberuloos 
when very young; petioles subterete, 5 to 12 mm. long, essentially glabrous; 
leaf blades oblong or lanceolate-oblong, 10 to 22 cm. long, 3 to 7 cm. broad, 
truncate at base, acuminate at apex, subentire and slightly revolute at margins, 
5-pli-nerved, the secondary nerves oriented above base, ascending, with the 
midnerve impressed above, prominent beneath, the veinlets reticulate, slightly 
raised or nearly plane on both surfaces; inflorescence axillary, short-racemose, 
essentially glabrous in all parts, 8 to 20 flowered; rachis subterete, 7 to 20 mm. 
long; pedicels slightly rugose, sometimes subflexuose, 15 to 25 mm. long, each 
84377—32 7 
400 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
subtended by a triangular bractlet about 1.5 mm. long, minutely bibracteolate 
below middle; calyx tube campanulate, 2 to 4 mm. long and about 3 mm. in 
diameter at anthesis; limb 2 to 5 mm. long including lobes, the lobes 3, 4, or 5, 
often in a state of semifusion, ovate, apiculate, 1 to 3 mm. long; corolla sub- 
cylindric or elongate-urceolate, 18 to 27 mm. long, about 5 mm. in diameter near 
base, contracted to the long throat, the lobes oblong, 2 to 4 mm. long; stamens 
9 to 12.5 mm. long; filaments dark castaneous, distinct or slightly coherent at 
base, 3 to 5 mm. long, slightly pilose marginally distally, leading into long 
slender connectives, the connectives alternately 2-spurred (sometimes all 
spurred, but the alternate ones more slender and more obviously spurred), the 
spurs subacute; anther sacs 5 to 6 mm. long; tubules distinct or laterally con- 
nate toward base, about 3 mm. long; stigma truncate; fruit subspherical, up 
to 12 mm. in diameter, surmounted by the broad coriaceous calyx limb. 
Type locality : Mount Roraima, British Guiana. Type collected by Schom- 
burgk (no. 974). 
Distribution : Mount Roraima in British Guiana; also at low elevations on 
the eastern Andean slope from Colombia to Bolivia; altitude 500 (or less ?) to 
1,500 meters. 
Bbittsh Guiana : Mount Roraima, Schomburgk 974 (B, type, K) ; im Thurn 49, 
in part (K, N). 
Brazil. 
Amazon as : PanurS, Rio Uaupes, Spruce 2465 (G, K, type of P. leucostoma, 
Y), 2705 (K). 
Colombia. 
Putumato : Umbrla, 325 meters, Klug 1678 (N, Y), 
ECUADOB. 
Tungubagtta : Baflos, Rio Pastaza, Spruce 5036 (G, K, Y). 
Peru: Maclean (K). 
San MARTfN: Tarapoto, Spruqe 4357 (K). Cerro de Escalero, Vie 6340 (B, 
type of P. San Roque, L. Williams 7343 (Y), 7712 (F, Y). 
Lobeto: Mouth of Rio Santiago, Te$»mann 3954 (B). 
HuAnuco: Cueva Grande, Macbride 4792 (F). 
Bolivia. 
La Paz: Mapiri and vicinity, Rushy 2038 (F, N, Y); Buchtien 1179 (B), 
1180 (B, N, Y), 1181 (B, N). 
This species has a very wide and unusual distribution for a member of the 
tribe, but it is observable in many cases that species inhabiting the eastern 
slopes of the Andes have a far wider distribution than those of the western 
ranges. In the latter case the mountains are sharply dissected, and often 
a narrow valley is sufficiently deep to prohibit the spread of a species. On 
the other hand, the mountains of the eastern Andes are less rugged, and the 
streams are larger and interconnected by virtue of the Amazon. Possibly this 
geographic fact accounts for the wide distribution of such species as the 
present one and Satyria panurensis, whereas the species of northwestern Co- 
lombia, for example, where the mountains are sharply dissected, are greatly 
restricted in range. 
Among the types here concerned there is little difference. The type of P. 
leuoo9toma is slightly the slenderest in habit, and another specimen from the 
Rio Uaupes, Spruce 2705, has extraordinarily narrow leaves. The widest leaves 
are those of the Tessmann specimen, but I am convinced that these forms are 
no more than extremes in a naturally variable species. This species Is possibly 
more closely related to P. paucifiora and P. wriehiana than is indicated by 
the key. 
SMITH—AMERICAN SPECIES OP THIBAUDIEAE 401 
20. Psammisia coarctata (B. & P.) A. G. Smith. 
Thibaudia coarctata R. & P. Fl. Peruv. Chil. 4: pi. S85. 1802. 
Thibaudia bicolor R. & P.; DC. Prodr. 7:561. 1839. 
Psammisia bicolor Klotzsch, Linnaea 24: 44. 1851. 
Vaocinium tricolor F. Muell. Sel. PI. Indust. Colt. 249. 1876. 
Psammisia engleriana Hoer. Bot. Jahrb, Engler 42: 304. 1909. 
Psammisia urbaniana Hoer. Bot. Jahrb. Engler 42: 307. 1909. 
Psammisia weberbaueri Hoer. Bot. Jahrb. Engler 42: 307. 1909. 
Shrub, often subscandent; branchlets stout, subterete, glabrous, brownish or 
cinereous; petioles subterete, 6 to 10 mm. long, glabrous; leaf blades oblong 
or ovate-oblong, 10 to 20 cm. long, 3 to 7 cm. broad, cuneate at base, acuminate 
at apex, subentire or shallowly cremate towards apex, glabrous, 5 to 7 pii nerved, 
the secondary nerves oriented near base, with the midnerve slightly impressed 
above, prominent beneath, the veinlets copiously reticulate, slightly raised on 
both surfaces; inflorescence axillary, short-racemose, glabrous in all parts, 10 
to 20 flowered; rachis subterete, stout, up to 5 mm. in diameter, 1 to 3 cm. 
long, conspicuously marked with the scars of deciduous pedicels; pedicels 
strlate, 20 to 45 mm. long, each subtended by an oblong bractlet about 4 mm. 
long, minutely bibracteolate near base, swollen distally; calyx tube broadly 
campanulate, 2 to 4 mm. long and 4 to 6 mm. in diameter at anthesis; Hmh 
2.5 to 4 mm. long including lobes, the lobes 5, ovate, apiculate, about 1.5 mm. 
long, thick-margined; corolla cylindric-urceolate, 18 to 27 mm. long, about 8 
mm. in diameter near base, contracted to throat, declduously sparsely brown- 
pilose without at middle, the lobes 1.5 to 2 mm. long; stamens 10 to 13 mm. 
long; filaments castaneous, distinct, slightly pilose at margins distally with 
hairs up to 0.3 mm. long, leading into long slender connectives, the connectives 
alternately 2-spurred (sometimes spurred on one margin only), the spurs acute, 
distinct; anther sacs 6 to 8 mm. long; tubules 3 to 4 mm. long. 
Typo locality: Peru, probably in Department of Hu&nuco. Type collected 
by Ruiz and Pavon. 
Distribution : Eastern Andes of central and southern Peru, altitude 1,600 
to 2.400 meters. 
Pebij: Maclean (K); Mat hews 2078 (E, in part), 
HuXnuoo : Near Monson, Weberbauer 3510 (B, type of P. engleriana). 
Pampayacu, Sawada P36 (F). 
Jurrtw: Huacapistana, Weberbauer 2151 (B, type of P. weberbaueri); 
Killip d Smith 24138 (N, 7). Schunke Hacienda, San RamOn, Maty 
bride 5626 (F). 
Cuzco: Sandla, Weberbauer 1159 (B, type of P. urbaniana). 
The necessity of forming a new combination for this species and at the 
same time reducing so many names is regrettable but inevitable. The name 
Thibaudia bioolor was not published in the fourth volume of Ruiz and Pavon, 
as was Thibaudia coarctata. In mflifing his choice between the two names, 
Dunal evidently had access to some unpublished manuscript. The three 
types of Hoerold's species here involved differ from one another only in 
very minor points. As represented by the above-cited specimens, the species 
is a very coherent one. 
81. Psammisia falcata (H. B. K.) Klotzsch, Linnaea 24:44. 1851. 
Thibaudia falcata H. B. K. Nov. Gen. & Sp. 3:269. 1818. 
Thibaudia cyathifera Benth. PI. Hartw. 222. 1846. 
Psammisia cyathifera Klotzsch, Linnaea 24:43. 1851. 
L 
402 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Shrub; branchlets sub terete, glabrous, brownish; petioles rugose, glabrous, 
narrowly winged above, 5 to 15 mm. long; leaf blades oblong or lanceolate- 
oblong, sometimes falcate, 12 to 35 cm. long, 3.5 to 7 cm. broad, cuneate at 
base, acuminate at apex, subentire or shaiiowly crcnate or subserrate toward 
apex, glabrous, 6 to 7 pli-nerved (or somewhat, pinnate-nerved), the secondary 
nerves oriented above base, ascending, with the midnerve slightly impressed 
above, raised beneath, the vein lets reticulate, plane or slightly raised on 
both surfaces; inflorescence axillary, racemose, essentially glabrous, 10 to 20 
flowered; rachis subterete, stout, 3 to 0 cm, long; pedicels stria te, 18 to 40 
mm long, each subtended by an oblong coriaceous bractlet about 4 mm. long, 
minutely bibracteolate near base; calyx tube short-cylindrie or campanula te, 
about 4 mm. long and 5 mm. in diameter at anthesis; limb coriaceous, 3 to 
5 mm. long including lobes, the lobes 5, ovate, apiculate, about 1 mm. long; 
corolla subcylindric, often slightly falcate, 18 to 28 mm. long, 0 mm. in diam- 
eter near base, contracted to about 3 mm, in diameter at throat, the lobes 
oblong, subacute, about 1.5 mm. Tong; stamens 12 to 16 mm. long; filaments 
dark castaneous, distinct, 4 to 6 mm. long, dlstally pilose at margins with a 
few straight pale hairs up to 0.0 mm. long, leading into slender connectives, 
the connectives alternately 2-spurred, the spurs subacute; anther sacs 8 to 
9 mm, long; tubules subcylindric, 3 to 5 mm. long; style exserted, the stigma 
truncate; fruit subspherical, slightly rugose, up to 12 mm. in diameter, sur- 
mounted by the broad coriaceous calyx limb. 
Ttpb locality : Amalguer, Colombia, altitude about 3,200 meters. Type 
collected by Humboldt and Bonpland. 
Distribution : Eastern Cordillera of Colombia, altitude 1,800 to 3,500 meters. 
Colombia; Purdie (K). 
Santander: La Baja, Killip Smith 17174 (N, Y), 18370 (N, Y), 18794 
(N, Y), 
Cundinamabca: Bogota, Schultze 70 (B, N). Clncha, Triana 2685 (K). 
Pasca, Triana 2686 {B, K). Tequendama, llolton 633 (K, N); Trianat 
in March, 1856 (B). Eastern pArnmos of Guasca, toward Gaclietfi, 
Ariste Joseph B. 113 (N, Y). 
Huxla: East of Neiva, Rusty} & Pennell 865 (N, Y). 
Well marked by its comparatively long rachis and distant long-jjedicelled 
flowers. It is frequently confused with P. macrophylla, yet the differences 
suggested by the key are constant and the ranges of the two species do not 
seem to overlap. 
22. Psammisia lanceolata Hoer. Bot. Jahrb. Engler 42: 300. 1909. 
Shrub; branchlets terete, cinereous, densely pubescent with pale spreading 
hairs up to 0.3 mm. long; petioles subcylindric, 5 to 15 mm. long, pubescent 
as the branchlets, becoming glabrous; leaf blades lanceolate-oblong, 10 to 22 
cm. long, £ to 7 cm. broad, cuneate or truncate at base, acute or acuminate at 
apex, entire and slightly revolute at margins, 5 to 7 pli-nerved or pinnate-veined 
with the secondary veins oriented in basal half, the secondary nerves 3 or 4 
to a side, ascending, with the mldvein impressed above, prominent beneath, 
the veinlets reticulate, nearly plane on both surfaces, essentially glabrous 
above, puberulous beneath when young, becoming glabrous; inflorescence axil- 
lary, racemose, 8 to 20 flowered; rachis subterete, 2 to 5 cm, long, when young 
closely pubescent as the branchlets, glabrcscent; pedicels subterete, 20 to 30 
mm. long, densely puberulous with pale brown hairs about 0.2 mm. long or 
subglabrous, each subtended by a deciduous bractlet, bibracteolate near base 
SMITH—AMERICAN SPECIES OF THIBAUDEBAE 403 
with triangular acute bractlets about 2 mm. long, swollen distally; calyx tube 
short-cylindric or subspherical, pilose with spreading scattered hairs about 
0.3 mm. long, about 4 mm. long, 5 to 6 mm. in diameter at anthesis; limb 
spreading, 4 to 6 mm. long including lobes, the lobes 4 or 5 (rarely 3), often 
in a state of semifusion, ovate, apiculate, 2 to 4 mm. long, 5 to 6 mm. across; 
corolla subcylindric, 20 to 28 mm. long, about 7 mm. in diameter, contracted 
above, the lobes 3 to 4 mm. long, re flexed when mature; stamens 12 to 14 mm. 
long; filaments nigrescent, distinct, 4 to 6 mm. long, distally pilose at margins 
with hairs up to 0.5 mm. long, leading into long slender connectives, the connec- 
tives alternately 2-spurred (spurs acute, about 1,3 mm. across, connective 0.5 
mm. across immediately below), the alternate connectives slightly broader; 
anther sacs 7 to*8.5 mm. long; tubules elongate-conical, 3 to 4 mm. long; 
style exserted in mature flowers, the stigma truncate; fruit subspherical, 
glabrous, up to 15 mm. in diameter, the calyx limb decurrent. 
Type locality: Pasca, Department of Cundinamarca, Colombia, altitude 
2,700 meters. Type collected by Triana (no. 4333/19). 
Distribution : Eastern Cordillera of Colombia, altitude 1,800 to 2,700 meters. 
COLOMBIA: Barroblanco, AitiLH 1337 (K), 1340 (K), 1498 (K). 
Cundinamabca: Pasca, Triana 4333/19 (B, type). Fusagasug&, Pennell 
2705 (N, T). 
Huila: East of Neiva, Pennell 599 (Y), 875 (N, Y). 
This species is closely related to the preceding, from which it differs only in 
the presence of somewhat persistent hairs. The young fruits are subglabrous, 
and the use of so variable a character as pubescence for specific limitation in 
this group is perhaps not justified. 
33. Psammisia penduliflora (Dun.) Klotzsch, Linnaea 24:43. 1851. 
Thibaudia penduliflora Dun.; DC. Prodr. 7:592. 1839. 
Psammisia planchoniana Decaisne, Rev. Hort. IV. 3:182. 1854. 
Chupalon penduliftorum Kuntze, Rev. Gen. PI. 2: 383. 1891. 
Macleania kalbreyeri Mansf. Notizbl. Bot. Gart, Berlin 9: 435. 1925. 
Shrub or low tree, 2 to 6 meters high; branchlets subterete, dark brown, 
puberulous when young, becoming glabrous; petioles subterete, 3 to 10 mm. 
long, essentially glabrous, narrowly winged above; leaf blades oblong or ovate- 
oblong, 7 to 17 cm. long, 3 to 7 cm. broad, cuneate at base, caudate-acuminate 
at apex, entire at margins, glabrous above, pilose beneath (hairs dark brown, 
stout, appressed, 0.2 to 0.3 mm. long, averaging 2 to 4 per square millimeter 
of surface), 5 (rarely 7) pli nerved, the secondary nerves oriented near base, 
ascending, with the midnerve impressed above, prominent beneath, the veinlets 
reticulate, plane above, slightly raised beneath; inflorescence axillary, race- 
mose, 4 to 12 flowered; rachis subterete, slightly rugose, 1 to 3 cm, long 
(rarely 5 cm.) at maturity; pedicels striate, 8 to 15 mm. long, glabrous, each 
subtended by an oblong bractlet 3 to 5 mm. long, deciduously bibracteolate near 
middle with similar bractlets; calyx tube subcylindric or subspherical, puber- 
ulous with minute silky hairs or glabrous, 2 to 3 mm. long and about 2 mm. 
in diameter at anthesis; limb 2.5 to 5 mm. long including lobes, the lobes 4 
or 5 (sometimes 3), ovate, apiculate, 2 to 4 mm. long; corolla subcylindric, 
16 to 23 mm. long, about 4 mm. in diameter, gradually contracted distally, 
glabrous or minutely puberulous distally, the lobes oblong, 2 to 3 mm. long; 
stamens 8 to 11 mm. long; filaments dark castaneous, distinct, distally pu- 
berulous or glabrous, 2 to 3 mm. long, leading into slender connectives, the 
connectives alternately 2-spurred, the spurs Inconspicuous, rounded or sub- 
acute; anther sacs 4 to 6 mm. long; tubules distinct or coherent at base. 
404 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
elongate-conical, 2 to 4 mm. long, opening by oval clefts of varying length; style 
about as long as corolla or slightly exserted, the stigma truncate; fruit sub- 
spherical, up to 15 mm. in diameter, the calyx limb decurrent. 
Type locality : Caracas, Federal District, Venezuela. Type collected by 
Vargas. 
Illustrations : Hook. Bot, Mag. Curtis 86: pi. 520$. 1860. Decaisne, Rev. 
Hort. IV. 3: pi. 1. 1854. 
Distribution: Andes of western Venezuela and northeastern Colombia, alti- 
tude 1,000 to 2,800 meters. 
Venezuela. 
Federal District: Caracas, IAn4en 283 (K). 
M&rida; Moritz 1347 (B, K), 1347b (B, G); SchucharM (B). Between 
Tabay and Mucurub&, Pittier 12874 (N). Aricagua, Jahn 985 (N). 
COLOMBIA: Triana 345 (B). 
Magdalbna: Santa Marta Mountains, Purdie (K, 5 collections). 
Nobtb DC Santandeb: Ocafia, Kalbreyer 286 (B, type of Macleania kal- 
breyeri, K). Toledo, Killip & Smith 20051 (N, Y), 20108 (N, Y), 20481 
(N, Y), 20587 (N, Y). 
Santandeb: Mesa de los Santos, Killip & Smith 15049 (N, Y), 15108 
(N, Y). Suratft, Killip d Smith 16621 (N). La Baja, KilUp & Smith 
16777 (N, Y), 18013 (N, Y). California, Killip & Smith 17873 (Y). 
Charta, KUlip & Smith 18868 (N, Y), 18872 {N, Y), 19099 (N, Y). 
This is a very common species throughout its rather limited range, and is 
easily identified by the stout brown hairs on the lower surface of leaves. The 
corollas are sometimes sparsely pubescent, but this character is neither con* 
stant nor persistent. The fact that spurs are often nearly lacking on the con- 
nectives Indicates the close relationship of this species to Macleania. A local 
name in M6rida is " coral." 
24. Fsammisia hookeriana Klotzsch, Linnaea 24: 46. 1851. 
Thibaudia pichinchensis var. glabra Hook. Bot. Mag. Curtis 73: pi. h$hh- 
1847. 
Psammisia tovarensia Klotzsch, Linnaea 24: 44. 1851. 
Psammisia saroantha Decaisne, Rev. Hort IV. 3 :181. 1854. 
Thibaudia sarcantha Hook. f. Bot Mag. Curtis 90: pi. 5^50. 1864. 
Thibaudia jeasicae Hook. f. Bot. Mag. Curtis 91 : pi. 5547. 1865. 
Maelemia tovarensis Hoer. Bot. Jahrb. Engler 42 : 269. 1909. 
Psammisia jessioae Hoer. Bot. Jahrb. Engler 42 :270. 1909. 
Subscundent shrub, the branches 2 to 6 meters long; brunchlets terete, 
brownish, glabrous; petioles subterete, glabrous, 5 to 12 mm. long; leaf blades 
broadly ovate or ovate-oblong, 12 to 25 cm. long, 5 to 9 cm, broad, cuneate at 
base, acuminate or long-acuminate at apex, entire at margins, thick-coriaceous, 
5 to 7 pli-nerved, the secondary nerves oriented above base, with the mid- 
nerve Impressed or nearly plane above, prominent beneath, the veinlets 
reticulate, slightly raised on both surfaces; inflorescence axillary, short- 
racemose, essentially glabrous in all parts, 8 to 20 flowered; rachis slightly 
rugose, about 1 cm. long; pedicels subterete, slightly striate, 10 to 22 mm. 
long, each subtended by a subcoriaceous ovate bractlet about 1.5 mm. long, 
minutely bibracteolate near base; calyx tube short-subcylindric or broadly 
campanulate, about 3 mm. long and 3 to 4 mm. in diameter at anthesis; 
limb spreading, 2 to 4 mm, long including lobes, the lobes 4 or 5, ovate, apic- 
ulate, 1 to 3 mm. long; corolla subcylindric or cylindric-urceolute, 14 to 16 
mm. long (rarely 12 nun.), 5 to 6 mm. in diameter at base, contracted to the 
r 
SMITH—AMERICAN SPECIES OF THEBATTDIEAE 405 
short throat, 5 (rarely 4) lobed, the lobes oblong, acute, 2 to 3 mm. long; 
stamens 10 (rarely 8), 8 to 10 mm. long; filaments nigrescent, distinct, 
glabrous or short-pilose distally at margins, leading into slender connectives, 
the connectives 2-spurred, alternately narrower, the spurs rounded or sub- 
acute, frequently obscure; anther sacs 4 to 6 mm. long; tubules distinct or 
laterally connate at base, 2 to 3.5 mm. long, opening by oval clefts about 
half their length; stigma peltate; fruit subspherical, 1 cm. or more in diameter, 
surmounted by the broad coriaceous calyx limb. 
Type locality: Mountains of Colombia. Type collected by Purdie. 
Distribution: Andes of Venezuela and northeastern Colombia. 
Colombia : Purdie (K, type). 
VsiVEZWLA. 
Federal Distbict : Caracas, Linden 26 (K). Silla de Caracas, Kuntze 1636 
(N, T), Altos de Galip&n, 1,800 meters, Pittier 9916 (N); E. Pittier 
129 (N, Y). 
M£bida: Moritz 479 (B). Colonia Tovar, Moritz 772 (B, type of P. 
tovarensis) / Fendler 737 (G, K, T); Allart 399 (B, N, T). 
Cultivated plant: Originally from Caracas? (K, type of ThibaitdUi jessioae). 
A beautiful species, cultivated in Europe, and probably most closely allied 
to P. pendvliflora, from which it is easily distinguished by the lack of pubescence 
on the leaves and by the small bractlets. 
25. Psammisia ulbrichiana Hoer. Bot. Jahrb. Engler 42 :306. 1909. 
Subscandent shrub; branchlets terete, reddish brown and slightly puberulous 
when young, becoming glabrous, with deciduous cinereous bark; petioles rugose, 
stout, 10 to 18 mm. long, glabrous, winged above; leaf blades oblong or 
lanceolate-oblong, 18 to 40 cm. long, 6 to 10 cm. broad, cuneate at base, long- 
acuminate at apex, subentire at margins, glabrous, dull olivaceous above, oli- 
vaceous or reddish beneath, usually 7-pli nerved, the secondary nerves oriented 
above base, with the midnerve impressed above, prominent beneath, the vein- 
lets reticulate, plane or slightly raised on both surfaces; inflorescence axillary, 
short-racemose, glabrous, 10 to 30 flowered; rachls stout, 1 to 2 cm. long; 
pedicels striate, 20 to 45 mm. long, each subtended by an oblong subcoriaceous 
bractlet about 3 mm. long, minutely bibracteolate below middle, swollen distally; 
calyx tube campanulate, 2.5 to 4 mm. long, 4 to 6 mm. in diameter at anthesls; 
limb subcoriaceous, about 4 mm. long including lobes, the lobes 5, ovate, apic- 
ulate, about 2 mm. long; corolla subcylindric, 18 to 25 mm. long, 5 to 6 mm. in 
diameter near base, contracted at throat, often conspicuously jointed slightly 
above middle, the lobes oblong, 2 to 3 mm. long; stamens 9 to 12 mm. long; 
filaments nigrescent, distinct or slightly coherent at base, sparsely pilose at 
margins distally (hairs about 0.3 mm. long), leading Into slender connectives, 
the connectives alternately 2-spurred, the spurs rounded, obscure, sometimes 
lacking; anther sacs 4 to 6.5 mm. long; tubules laterally connate in basal half, 
2.5 to 5 mm. long, cylindric-conical; stigma peltate. 
TxrE locality: Mount Pululagua, Province of Plchincha, Ecuador. Type 
collected by Sodiro (no. 92/4). 
Distribution : Andes of Ecuador and Peru, altitude 1,000 to 3,300 meters. 
Eouadob. 
Pichincha: Mount Pululagua, Sodiro 92/4 (B, type). Cauzacoto, Sodiro 
92/5 (B). 
El Obo: Between La Chorita and Portovelo, Hitchcock 21194 (N, 7). 
Azuay: Cuenca, Pearce 236 (K). 
406 contributions from the national herbarium 
Peeu: Mathews, in 1862 (Y). 
Auazonas: Central Cordillera, L. Williams 7597 (F, N). 
HuAnuoo: Cushi, Macbride 4851 (F). 
JrrNfw: Pichis Trail, Porvenir, Killip & Smith 25946 (N, Y). 
Cuzoo: Pillahuata, Cerro de Cusilluyoc, Pennell 14028 (F, Y). 
A widely distributed but apparently father rare species, with beautiful large 
leaves and flowers. It will probably be most often sought in the section of 
the key which includes plants with 7 to 9 nerved leaves, but because of its sup- 
pressed connective spurs it also shows an affinity with the two preceding 
species. 
DOUBTFUL SPECIES 
Psammisia long i coll a Hook. f. Bot. Mag. Curtis 91: pi, 5526. 1865. 
Type locality : Peru. Type collected by Bateman. 
No plant the precise equal of the plate and description of this species has 
been seen by me. It may be allied to P. vlbricihiana, which species does not 
have the bractlets at the summit of the pedicel, as portrayed in P. longicolia. 
The abruptly contracted corolla also suggests P. ulbrichiana, which quite 
possibly should be supplanted by the earlier name. 
Psamhisia oblongifoiia Hegel, Ind. Sem. Hort. Petrop. 1866: Suppi. : 33. 
1867. 
Type collection : Evidently a cultivated plant, the source not mentioned. 
From the description it is impossible to assign this name to any species of 
Psammisia I have seen, 
Psammisia sclerophylla Planch. & Llnd. Fl. Serr. Jard. 8:205. pi 825. 1853. 
Type collection: State of M£>rida, Venezuela, altitude about 2,400 meters. 
Type collected by Funek and Schlim. 
This species may be synonymous with either P. penduliflora or P. hookeriana, 
but from the oblong leaves and pilose branchlets and pedicels shown in the 
plate I conclude that it is neither. 
13. ANTHOPTERUS Hook. Icon. PI. 3: pi. fyS. 1840 
Calyx tube continuous with pedicel, obprismatic, winged to sinuses; limb 
suberect, 5-lobed, the lobes lanceolate-triangular.; corolla subcyllndrlc or 
subglobose, brofidly 5-winged to the lobes, 5-lobed, the lobes triangular, sub- 
acute ; stamens 10, equal, nearly as long as corolla; filaments membranous, 
connate at base, attached to the anther dorsally; anthers somewhat mem- 
branous, the sacs smooth, the tubules usually longer than the sacs, opening by 
short introrse clefts; style filiform, about as long as corolla. 
Low shrubs with coriaceous alternate pli-nerved petioled leaves; inflorescence 
axillary, racemose, bracteate at base; flowers pedicelled, several to many to 
an inflorescence, each subtended by a bract. 
Distribution : Eastern Panama and western Colombia, with one species in 
northern Peru. Four species are known. 
This genus is readily distinguished from Thibaudia by Its obviously winged 
corollas and calyces. A. racemostts Hook, is the type species. 
KEY TO THE SPECIES 
Racemes and leaves 10 to 15 cm. long, the leaves lanceolate-elliptic. 
1. A. racemosus. 
SMITH—AMERICAN" SPECIES OP THIBAUDEEAE 407 
Racemes and leaves 5 to 11 cm. long, the leaves ovate. 
Leaves cuneate or subattenuate at base, decurrent on the petiole. 
2. A. cuneatus. 
Leaves subcordate or truncate at base. 
Bracts of the rachis not exceeding 8 mm. In length; calyx lobes triangular- 
ovate, 6 to 7 mm. long 3. A. wardii. 
Bracts of the rachis 12 to 17 mm. long; calyx lobes lanceolate, 9 to 10 
mm. long 4. A. bracteatus. 
1. Anthopterus racemosus Hook. Icon. PI. 3 : pi. 2^3. 1839. 
Thibaudia racemosa Hoer. Bot. Jahrb. Engler 42: 274. 1909. 
Shrub or low tree, probably epiphytic; branchlets subterete, straight, gla- 
brous; petioles glabrous, stout, angled, short; leaf blades lanceolate-oblong, 10 
to 15 cm. long, 3 to 4 cm. broad, glabrous, truncate at base, entire at margins, 
3-nerved, the midnerve pinnate-veined above; inflorescence axillary, racemose, 
apparently glabrous in all parts; rachis up to 15 cm. long; pedicels up to 2 cm. 
long, each subtended by an oblong bract, bibracteolate at middle; calyx urceo- 
late, 5-winged to sinuses, the wings semiovate, the lobes deltoid, acute; corolla 
submembr a nous, conical-urceolate; filaments short, connate in a membranous 
tube; anthers erect, smooth, the tubules about twice as long as the sacs; 
stigma truncate. 
Type locality : Moyabamba, Department of Amazonas, Peru. Type collected 
by Mathews. 
Distribution : Known only from the type collection. 
This species is evidently quite distinct from the Colombian ones. No speci- 
mens of it are available to me, but from the description and the plate its 
relationship is apparent. 
2. Anthopterus cuneatus A. C. Smith, sp, nov. 
Frutex; ramulis ad nodos imbricato-bracteatis; laminis ovato-elliptieis basi 
cuneatis vel subattenuatis apice obtuse acuminatis 7-pli-neiviis; inflorescentia 
racemosa bracteata; floribus glabris; calyce urceolato 5-alato, alls anguste semi- 
ovatis, lobis lanceolato-triangularibus; corolla cylindrica 5-alata, alls late semi- 
obovatis; staminibus aequalibus, filamentis basi connatis, tubulis flexilibus 
quam loculis paullo longioribus. 
Shrub; branchlets subterete, glabrous, brown, often bracteate above nodes 
with several tightly imbricate subcoriaceous oblong blunt bracts 3 to 7 mm. 
long and 2 to 4 mm. broad; petioles terete, glabrous, 1.5 mm. in diameter, 4 to 
5 mm. long; leaf blades coriaceous, ovate-elliptic, 8 to 10 (rarely 11) cm. long, 
3.5 to 4.5 cm. broad, glabrous or minutely puberulous above near base, cuneate 
or subattenuate at base, decurrent on petiole, bluntly acuminate at apex (acu- 
men not exceeding 1 cm. in length), entire and slightly revolute at margins, 7 
(rarely 5) pli-nerved, the secondary nerves sharply ascending, oriented at or 
near base, with the midnerve impressed above, strongly prominent beneath, the 
veinlets slightly raised on both surfaces; racemes terminal, subtended at base 
by 2 linear-lanceolate acute bracts 25 mm. long and 3 to 4 mm. broad; rachis 
grooved, glabrous, up to 11 cm. long, bracteate at base with numerous closely 
imbricate, oblong or ovate, blunt bracts of varying size, the largest 8 mm. long 
and 4 mm. broad; pedicels alternate, 1 or 2 per centimeter on mature rachis, 
subterete, striate, 6 to 10 mm. long, each subtended by a single subcoriaceous 
oblong subacute bractlet 10 to 12 mm, long and 5 mm. broad; flowers glabrous; 
calyx tube urceolate, about 5 mm. long and 3 mm. in diameter at summit (ex- 
clusive of wings), the wings fleshy, narrowly semiovate, about 1 mm. broad; 
limb erect, about 5 mm. long including lobes, the lobes lanceolate-triangular, 
408 CONTRIBUTIONS PROM THE NATIONAL HERBARIUM 
about 4.5 mm. long, 2 mm. Jbroad at base; corolla membranous, 8 to 9 mm. long, 
about 3 mm. in diameter exclusive of wings, the wings semiobovate, about 2 
mm. broad at the broadest point, each traversed by a single faint longitudinal 
vein parallel to the margin, the lobes triangular, acute, about 0.8 mm. long 
and 1 mm. broad at base; stamens erect, 7 mm. long; filaments 2.5 mm. long, 
connate in a tube for half their length, membranous, glabrous; anther sacs 
slightly granular, about 2 mm. long, gradually leading into wide flexible tubules 
3 mm. long opening by wide introrse clefts 1 to 1.5 mm. long; style 8 to 9 mm. 
long, the stigma truncate. 
Type in the herbarium of the New York Botanical Garden, collected on 
" paramo," Barbacoas, Department of Narifio, Colombia, altitude 1,000 meters, 
1851 to 1857, by J. Triana (no. 2718). Duplicate at K, 
Distribution : Known only from the type collection. 
The collector's notes refer to the habitat as " p&ramo," although a pfiramo 
proper could not exist at such low altitude. It is a species distinguished from 
others of the genus by its cuncate leaf-base, numerous and varied bracts, and 
slightly smaller flowers. 
3. Anthopterus wardii Ball in Hook. Icon. PI. 15; pi. 1^65, 1884. 
Thibaudia wardii Hoer. Bot. Jahrb, Engler 42:274. 1909. 
Shrub or low tree; branchlets subterete, faintly puberulous when young, 
becoming glabrous, cinereous; petioles subterete, glabrous, 2 to 4 mm. long; 
leaf blades oblong or ovate oblong, 6 to 12 cm. long, 2.5 to 5 cm. broad, essen- 
tially glabrous, subcordate at base, bluntly acuminate at apex, entire and 
slightly revolute at margins, 5 to 7 pli-nerved, the secondary nerves oriented 
near base, ascending, with the midnerve slightly impressed or plane above, 
prominent beneath, the veinlets copiously reticulate, slightly raised on both 
surfaces; inflorescence axillary, short-racemose; rachis subterete, glabrous, 
1 to 2 cm. long, circumscribed at base by a few triangular bractlets up to 5 mm. 
long; pedicels subterete, glabrous, 10 to 20 mm. long, each subtended by a single 
oblong bractlet 3 to 6 mm long; flowers glabrous; calyx tube urceolate, 3 to 4 
mm. long and about 2.5 mm. in diameter at summit exclusive of wings, the 
wings narrowly semiovater about 1 mm. broad, opaque; limb subspreading, 7 
to 8 mm. long including lobes, the lobes triangular-ovate, acute, 6 to 7 mm. 
long and about 4 mm. across, traversed by about 7 parallel branching veins not 
quite reaching the margins; corolla membranous, 10 to 11 mm. long, about 4 mm. 
in diameter, slightly contracted at base and apex, the wings semiobovate, 2 to 3 
mm. across their broadest point, each with a single longitudinal vein parallel 
to the margin, the lobes ovate, about 1 mm. long; stamens 7 to 8 mm. long; 
filaments about 4 mm. long, membranous, connate for about half their length, 
glabrous, adherent to corolla; anther sacs about 2 mm. long, gradually leading 
into flexible tubules about 3 mm. long, opening by introrse clefts about half 
their length; stigma truncate. 
Type locality : Buenaventura, Department of El Valle, Colombia, near sea 
level. Type collected by R, Ward. 
Distribution : Pacific slope of Western Cordillera from Panama to southern 
Colombia, between sea level and 1,200 meters altitude. 
Panama: Dari6n, Cerro de Garagarfi, Snmbfi basin, Pittier 5652 (N.). 
Colombia : Bfo de Santa Rosa, Andrti K1335 (K). 
El ChocO: Quibd6, Archer 1901 (N, X). 
El Valle: Buenaventura, Andr& 269 (K); Lehmann K179 (K) ; KUlip 
5223 (B, G, N, Y), 11851 (N, Y). 
Nabxno: Between Barbacoas and Tuquerres, Tricma 2716 (K, Y). 
"Pebu: Maclean" (K). 
SMITH—AMERICAN SPECIES OP THXBAUDHfiAE 409 
Concerning the last specimen cited there Is probably a confusion of labels, as 
it is quite unlikely that the species would be found in Peru and Colombia and 
in no Intermediate places. It is a species of considerable variation; the Panama 
specimen has a calyx with broader wings and shorter lobes, a corolla with 
broader wings, and the leaves smaller than in typical material from Buena- 
ventura. The Triana specimen Is more or less Intermediate, suggesting that the 
* 
broader flower may be concomitant with increased altitude. At Buenaventura 
the species is reported as growing in mangrove swamps. 
4. Anthopterus bracteatus A. C. Smith, sp. no v. 
Frutex; laminis oblongo-ovatis basi subcordatis vel truncatls a pice obtuse 
acuminatis 5 ad T pli-nerviis; inflorescentia racemosa bracteata; floribus glabris; 
calyce urceolato 5-alato 5-lobato, lobis elongatls lanceolato-triangularibus; 
corolla 5-aIata, alls semiobovatls; sta minibus aequalibus, fllamentis basi con- 
natis, tubulis flexilibus quam loculis duplo longioribus. 
Shrub; branchlets subterete or obtusely angled, glabrous or minutely pale- 
puberulous when young; petioles terete, subglabrous, 1.5 mm. in diameter, about 
2 mm. long; leaf blades coriaceous, oblong-ovate, 7 to 9 cm. long, 3 to 4 cm. broad, 
glabrous or essentially so, subcordate or truncate at base, bluntly acuminate at 
apex (acumen less than 1 cm. long), entire and plane at margins, 5 to 7 pli- 
nerved, the secondary nerves sharply ascending, oriented near base, the mid- 
nerve and secondary nerves impressed above, prominent beneath, the veinlets 
copiously reticulate, slightly raised on both surfaces; racemes axillary near 
ends of branchlets; rachis obtusely angled, glabrous, up to 5 cm. long, bracteate 
at base with numerous closely imbricate, ovate, oblong, or lanceolate bracts, the 
largest of these 12 mm. long and 3 mm. broad; pedicels alternate, about 3 per 
centimeter on mature rachis, striate, about 2 cm. long, each subtended by a 
single oblong lanceolate acute bractlet 12 to 17 mm. long and 2 to 3 mm. broad; 
flowers glabrous; calyx tube about 5 mm. long and 3 mm. in diameter at 
summit exclusive of wings, the wings narrowly semiovate, about 1.5 mm. broad; 
limb erect, 10 to 11 mm. long including lobes, the lobes lanceolate-triangular, 
acute, 9 to 10 mm. long, 3.5 mm. broad at base, traversed by several close 
parallel longitudinal freely branching veins not quite reaching the margins; 
corolla 12 to 13 mm. long, 4 to 5 mm. in diameter (exclusive of wings) near 
base, contracted above, the wings semiobovate, about 3.5 mm. across broadest 
point, each traversed by a single faint longitudinal vein parallel to margin, the 
lobes erect, 1 mm. long, 1.2 mm. broad at base; stamens erect, 10 mm. long; 
filaments 5 mm. long, connate in a tube at base, free above, membranous, 
glabrous; connective short; anther sacs slightly granular, about 2 mm. long, 
gradually leading into wide flexible tubules 4 mm. long opening by wide introrse 
clefts half their length; style about 11 mm. long, the stigma truncate. 
Type in the herbarium of the New York Botanical Garden, collected at 
Tlmbiquf, above Popay&n, Department of El Cauca, Colombia, by F. C. Lehmann 
(no. BT949). 
Distribution : Known only from the type collection. 
The present species is allied to A. toardii, from which it is distinguished by Its 
larger bracts and lanceolate calyx lobes. 
EXPLANATION of Platb 11.—Anthopterua bracteatus, from photograph of type sheet. 
About one-half natural Bize. 
EXCLUDED SPECIES 
Anthoptkbus mucbonatus Benth. PI. Hartw. 221. 1846. 1 
TMb&udia muoronata Hoer. Bot. Jahrb. JSngler 42: 274. 1909. > 
k 
410 CONTRIBUTIONS PROM THE NATIONAL HERBARIUM 
Type locality : Near Pitayo, Department of El Cauca, Colombia. Type col- 
lected by Hartweg (do. 1210). 
Examination of the type specimen shows that it must be placed in tlie tribe 
Vaccinieae. Probably it is a species of Vaooinktm. 
14. THIBAUDIA R. & P.; St. Hil. Expos. Fam. Nat. 362. 1805 
(Eurygania Klotzsch, Linnaea 24:26. 1851) 
Calyx tube articulate with pedicel (continuous in the section Agathothi- 
6oshort-cylindric or campanulate, sometimes narrowly 5-winged to the 
sinuses; limb e recto-pa tent, 5-lobed, the lobes triangular, aubacute; corolla 
subcylindric, sometimes 5-angled, 5-lobed, the lobes triangular or oblong, sub- 
acute ; stamens 10, equal, often nearly as long as corolla; filaments distinct or 
connate, attached to the anther dorsally near its base; anthers firm or mem- 
branous, the sacs smooth or slightly granular, the tubules as long as the sacs 
or longer {rarely more than twice as long), opening by elongate introrse 
clefts; style filiform, about as long as corolla, frequently exserted. 
Shrubs of various habit, often epiphytic, with coriaceous or subcoriaceous, 
alternate, pinnate-veined or pli-nerved, petioled leaves; inflorescence axillary 
or terminal, subfasciculate or racemose; flowers pedi celled, few to many to an 
inflorescence; pedicels dedduously bibracteolate. 
Distribution : Mountainous South America from Colombia to Bolivia and 
eastward to Mount Roraima in British Guiana (also one species in Costa 
Rica). Forty species are here described and in addition there are nine names 
which I am unable to place. 
The relationships of this genus have been discussed in a previous section of 
this treatment. It is characterized by smooth or slightly granular anther sacs 
and more or less flexible, wide tubules. T. meWflora R. & P. is the type species. 
KEY TO THE SPECIES 
Calyx continuous with pedicel {section Agathotkibaudia Hoer.). 
Leaves acuminate at apex, at least 3 times as long as broad; flowers thin- 
carnose, racemose. 
Leaves oblong or oblong-lanceolate, 3 to 5 times as long as broad 
1. T. floribunda. 
Leaves lanceolate, about 8 times as long as broad 2. T. longifolla. 
Leaves rounded or obtuse at apex, less than twice as long as broad; flowers 
coriaceous, subfasciculate 3. T. turbinata. 
Calyx articulate with pedicel (section Eurygania IC1.). 
Filaments distinct (sometimes loosely coherent at base, never connate 
di s tally), 
Calyx and corolla rigidly carnose; calyx limb suberect, as long as the 
tube or longer; corolla strictly tubular. 
Anthers more than 11 mm. long. 
Leaves truncate or subcordate at base. 
Leaf margins entire, the principal secondary veins 5 to 8 to a side; 
flower parts stout, the calyx about 12 mm. long; anthers 20 mm 
long, the sacs about 3 times as long as tubules (Colombia) 
4. T. pachyantha. 
Leaf margins serrate, the principal secondary veins 3 to 5 to a side; 
calyx less than 9 mm. long; anthers up to 14 mm. long, the 
sacs not more than twice as long as tubules. 
SMITH—AMERICAN SPECIES OF THIBAUDD5AE 411 
Branch lets rugose, sabterete; leaves minutely reddish pilose be- 
neath (Bolivia) 5. T. macrocalyx. 
Branchlets sulcate-angled; leaves glabrous (Peru) 
6. T. engleriana. 
Leaves attenuate or long-cuneate at base. 
Calyx tube strongly papillose; filaments dor sally pilose; leaves not 
exceeding 6 cm. in length  7. T. axillaris. 
Calyx tube rugose, not papillose; filaments pilose at margins only; 
leaves 9 to 18 cm. long. 
Leaf apex acute; calyx apophysate at base, the limb about 3 times 
as long as tube; anthers about 20 mm. long 8. T. andrei. 
Leaf apex rounded or obtuse; calyx hardly apophysate, the limb 
about as long as tube; anthers 12 to 17 mm. long. 
9. T. rigidiflora. 
Anthers 9 mm. long or less. 
Calyx campanulate; corolla cylindric; anthers 7 to 9 mm. long 
(Venezuela and British Guiana). 
Rachis about 2 cm. long; anthers produced at base Into a slender 
tip  10. T. jahnli. 
Rachis about 1 cm. long or less; anthers not noticeably produced 
at base. 
Leaves nearly 3 times us long as broad; stamens not exserted or 
barely so  11. T. formosa. 
Leaves less than twice as long as broad; stamens exserted at 
maturity 12. T. roraimae. 
Calyx strongly apophysate; corolla conical; anthers about 5.5 mm. long 
(Peru) - 13. T. apophysata. 
Calyx and corolla soft-cahiose (usually flattened by pressure of drying). 
Branchlets stiff; leaves subcuneate at base; flowers subfasciculate 
(rachis stout, less than 1 cm, long); pedicels not much longer than 
flowers. 
Connectives with vestigial spurs near summit; filaments less than one- 
third as long as anthers (Amazonian Colombia). 
14. T. cupatensis. 
Connectives unspurred; filaments about half as long as anthers 
(Venezuela and British Guiana). 
Calyx and pedicel bearing persistent glandular hairs 1 to 1.5 mm. 
long  15. T. glandulifera. 
Calyx and pedicel without glandular hairs. 
Pedicel surmounted by a persistent involucre of 2 fused bractlets. 
16. T. involucrata. 
Pedicel without fused bractlets at summit. 
Corolla, calyx, and pedicel glabrous; calyx lobes triangular, 
acute, 1 mm. long or more 17. T. nutans. 
Corolla, calyx, and pedicel minutely and densely pale puberulous; 
calyx truncate  18. T. truncata. 
Branchlets slender, lax; leaves truncate or subcordate at base; flowers 
racemose (rachis slender, 1 to 3 cm. long) ; pedicels slender, about 
twice as long as flowers 19. T. lax a. 
412 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Filaments firmly connate in a tube. 
Leaves 12 to 17 cm. long, pli-nerved or nerved from base. . 
Inflorescence paniculate; flower parts glabrous or subglabrous; filaments 
glabrous. 
Leaves narrowly oblong, up to 5 cm. broad, long-acuminate; corolla 
about 10 mm. long (Costa Rica) 20. T. costaricensis. 
Leaves oblong, 5 to 8 cm. broad; corolla 12 to 17 mm. long (Colombia). 
Leaves about twice as long as broad, bullate, abruptly acuminate, 
rounded at base 21. T, paniculata. 
Leaves at least 3 times as long as broad, subacute or bluntly acumi- 
nate, cuneate at base 22. T. archeri. 
Inflorescence racemose; flower parts pilose (hairs about 0.25 mm. long); 
filaments dorsally pilose near summit, the hairs 0.3 mm. long 
(Colombia) 23. T. pennellii. 
Leaves not exceeding 9 cm. in length, predominantly pinnate-veined. 
Leaves sulcate, strongly revolute at margins. 
Flowers essentially glabrous, 1 to 3 to an inflorescence (Colombia). 
24. T. p&rvlfolia. 
Flowers densely tomentose, several to an inflorescence (Peru). 
25. T. tomentosa. 
Leaves not noticeably sulcate, plane or slightly revolute at margins. 
Calyx limb erect, twice as long as tube (limb about 7 mm. long); 
inflorescence densely tomentose, associated with cavendishioid 
bracts 26. T. anom&Ia. 
Calyx limb erecto-patent, hardly longer than tube; inflorescence 
glabrous or pilose, not associated with large bracts. 
Leaf margins serrate (northern and central Peru). 
Calyx and pedicel pubescent, the hairs pale, lax, about 0.3 mm. 
long. 
Leaves oblong-lanceolate, 3 or 4 times as long as broad; corolla 
subglabrous within. 
Corolla densely pilose without, the hairs pale, about 0.5 mm. 
long  27. T. phylliriaefolia. 
Corolla glabrous  28. T. moricandi. 
Leaves obovate-oblong, 2 or 3 times as long as broad; corolla 
densely tomentose within distally 29. T. obovata. 
Calyx and pedicel glabrous (young pedicels pilose in no. 33). 
Filaments strongly pilose at margins distally (hairs up to 0.5 
mm. long) ; anthers 8 to 10 mm. long. 
Leaves oblong, up to 2 cm. broad; corolla subglabrous within; 
^anthers subglabrous  30. T. angustifolia. 
Leaves ovate, 3 to 3.5 cm. broad; corolla tomentose within 
distally; anthers pilose at base 31. T. urbaniana. 
Filaments glabrous or very sparsely pilose; anthers up to 0 mm. 
long. 
Corolla tomentose or pilose within distally; anthers pilose at 
base; calyx not noticeably rugose. 
Leaves ovate, acute or subacute at apex. 
Leaves 3 to 4.5 cm. broad 32. T. harmsiana. 
Leaves 1 to 2.5 cm. broad 33. T. ovata. 
Leaves obovate, rounded (or apiculate) at apex. 
34. 1. spathulata. 
Corolla glabrous within; anthers glabrous; calyx rugose. 
35. T. ov&lifolia. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 413 
Leaf margins entire or shallowly and obscurely crenate (Peru and 
Bolivia). 
Flowers 1 to 3 to an Inflorescence; leaves rounded or frequently 
emarglnate at apex 36. T. biflora. 
Flowers several to an inflorescence; leaves subacute or obtuse at 
apex. 
Leaves about 4 times as long as broad. Flowers slender; 
pedicels about 0,7 mm. in diameter; calyx tube 1.5 mm. in 
diameter 37. T. herrerae. 
Leaves 2 or 3 times as long as broad. 
Lower surface of leaves and young calyx densely white-pilose 
(hairs spreading, up to 0.5 mm. long) 38. T. regularis. 
Lower surface of leaves and calyx essentially glabrous (rarely 
somewhat pilose). 
Branchlets and inflorescence glabrous; anthers about 4 mm, 
long (Bolivia) 39. T. boliviensis. 
Branchlets, rachls, and pedicels white-pilose; anthers about 
6 mm. long (Peru) 40. T. melliflora. 
1. Thibaudia floribunda H. B. K. Nov. Gen. & Sp, 3:209. pi. 254- 1818. 
Thibaudia pivhinchensis Benth. PI. Hartw. 223. 1846. 
Shrub or low tree with elongate branches; branchlets subterete, brownish and 
sparsely puberulous when young, becoming glabrous and cinereous; petioles 
rugose> stout, up to 4 mm. in diameter, 5 to 10 mm. long, glabrous, winged above; 
leaf blades subcoriaceous, oblong or lanceolate-oblong, 8 to 22 cm. long, 2.5 to 6 
cm. broad, cuneate at base, acuminate at apex, entire at margins, glabrous, 5 
(rarely 3 or 7)-pli-nerved, the secondary nerves oriented above base, with the 
midnerve impressed above, prominent beneath, the velnlets reticulate, plane 
above, slightly raised beneath; inflorescence axillary, copious, often from large 
leafless branchlets, racemose, 15 to 30 flowered, essentially glabrous in all parts; 
rachls slender, striate, 2 to 6 cm. long; pedicels sub rugose, 5 to 10 mm. long, 
each subtended by an oblong bractlet 2 to 4 mm. long, minutely bibracteolate 
near base (bractlets sometimes flmbrlate, rachls and pedicels sometimes mi- 
nutely puberulous), continuous with calyx; calyx tube campanulate, 2 to 3 mm. 
long, .2 to 3 mm. in diameter at anthesis; limb subspreading, 1 to 2 mm. long 
including lobes, the lobes acute, 1 mm. long or less; corolla subcylindric, 12 to 
10 mm. long, 3 to 4 mm. in diameter, the lobes 1 to 1.5 mm. long; stamens 8.5 to 
15 mm. long; filaments pale castaneous, 2 to 4 mm. long, distinct or loosely 
coherent, sparsely pilose distally with hairs up to 0.2 mm. long; anther sacs 
smooth, slender, 2.5 to 4 mm. long; tubules wide, 5 to 8 mm. long, opening by 
elongate clefts; stigma peltate. 
Type locality: Bogota, Department of Cundinamarca, Colombia, altitude 
about 3,000 meters. Type collected by Humboldt and Bonpland (or by Mutls?). 
Distribution : Eastern and Central Cordilleras of Colombia and southward 
along the Andes to central Peru, altitude 2,400 to 8,000 meters. 
Colombia : Pttrdie (K). Barroblanco, Andri 1020 (K). 
Santander : Las Vegas, Killip & Smith 15820 (N, Y). La Baja and vicin- 
ity, KilUp d Smith 18087 (N, Y), 18791 (N, Y). 
Cundinamabca : Bogota and vicinity, Humboldt d Bonpland (B, type); 
Holton 032 (T); Dome 310 (K, N); Pennell 1924 (N, Y). Paeho, 
164a (B). 
Caxdas: Old Quindfo Trail, KWip & Hazen 9462 (N, Y). Cerro Tatamfi, 
PenneU 10400 (Y). 
414 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
El Cauca: PAramo de Guanacas, Hartweg 1225 (K). Headwaters of Rfo 
Lopez, Rfo Palo basin, Tierra Adentro, Pittier 1073 (N). Mount 
Purac£, Pennell & Killip 6524 (B, N, Y). San Antonio, Pennell <& 
KiUip 7304 (N, Y). 
Narino : Barbacoas, Antir6 (K). 
Ecuador: Hartwey 1224 (E). 
Pichincha; Quito, Jameson (It). Mount Pichinchn, Hartweg 1217 (B, K, 
type of T. pichinolMMis) ; Sodiro (B), 92/llb (B), 02/15 (B); 
Jameson 293 (K). Niebli, Andr6 3797 (E), 
Tungubaqua: Spruce 6088 (K, Y). 
Pebu. 
HuAnuoo : Sawada P43 (F). Playapampa, Macbride 4874 (F). 
Study of a large series of specimens referred to T. ftoribunda and T. piohin- 
ohensis indicates that only one species is represented. The type specimen of T. 
ftoribunda has glabrous flowers, calyx lobes slightly longer than broad, and 
linear bractlets. The type specimen of T. piahinohemis has shor t- b r own-pi lose 
pedicels and calyces, short triangular calyx lobes, and triangular pilose bract- 
lets. Between these two forms are found specimens with every possible com- 
bination of these characters, indicating that they are purely individual and not 
even characteristic of geographic localities. Of the above-cited specimens, the 
most distinctive is Hartweg 1224, which is very robust, with large truncate- 
based leaves; however, it does not seem to present differences of specific value. 
A local name of the Bogota region is " uva de granls." 
2. Thibaudia longifolia H. B. E. Nov. Gen. & Sp. 3: 269. 1818. 
Psammisia longifolia Elotzsch, Linnaea 24:43. 1851. 
Thibaudia lehmannU Hoer. Bot. Jahrb. Engler 42: 311. 1909. 
Shrub; branchlets subterete and puberulous when young, becoming angled, 
glabrous and cinereous; petioles subterete, 8 to 10 mm. long, glabrous; leaf 
blades thick coriaceous, lanceolate-oblong, 16 to 30 cm. long, 2 to 3.5 cm. broad, 
cuneate or subattenuate at base, acute at apex, entire, glabrous above, sparsely 
pilose beneath with scattered short appressed hairs, becoming glabrous, 5 to 7 
pli-nerved, the secondary nerves oriented above base, ascending, with the mid- 
nerve impressed above, prominent beneath, the veinlets reticulate, obscure; 
inflorescence axillary, racemose, 20 to 40 flowered; rachis slender, striate, 
deciduously pilose with short dark hairs about 0.2 mm. long, 5 to 14 cm. long; 
pedicels striate, pubescent as the rachis or glabrous, 7 to 12 mm. long, each 
subtended by a lanceolate subflmbriate bractlet 3 to 4 mm. long, bibracteolate 
near base, continuous with calyx; calyx tube subcylindric or narrowly cam- 
panula te, 2.5 to 3 mm. long and 2 mm. in diameter at an thesis, subglabrous, 
rugose; limb 1 to 1.5 mm. long including lobes, the lobes apiculate, less than 
1 mm. long; corolla cylindric, glabrous, about 14 mm. long, 2 to 3 mm. in 
diameter, the lobes about 1 mm. long; stamens about 12 mm. long; filaments 
castaneous, membranous, 3 to 4 mm. long, connate most of their length, densely 
pilose at margins distally with pale hairs about 0.2 mm. long; anther sacs 
smooth, about 3 mm. long, narrowed and sparsely setose at base; tubules 
wide, erect, 5 to 7 mm. long, opening by clefts about half as long; style 
slender, striate, about as long as corolla, the stigma peltate. 
Type locality : Andes of the Quindfo region, near La Ceja, Colombia, altitude 
about 3,200 meters. Type collected by Humboldt & Bonpland. 
DISTRIBUTION: Andes of central and southern Colombia, altitude 2,600 to 
3,200 meters. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 415 
Colombia. 
Ei. Cauca : Andes west of Popayfin, Lehmann 8232 (B, type of T. lehmanni, 
F, N). 
Differs from T. floribunda only in the lanceolate leaves. There seem to be 
no specimens intermediate between the two species. 
3. Thibaudia turbinata (Kuntze) Hoer. Bot. Jahrb. Engler 42:272. 1909. 
Chupalon tur bind turn Kuntze, Rev. Gen. PI, 3a: 190. 1898. 
Low shrub; branchlets subterete, glabrous, cinereous; petioles subrugose, 
glabrous, narrowly winged, 4 to 5 mm. long; leaf blades coriaceous, ovate or 
slightly obovate, 5 to 8 cm. long, 3 to 5 cm. broad, sub attenuate at base, rounded 
at apex, entire and slightly revolute at margins, glabrous, sometimes sparsely 
punctate above, pinnate-veined, the midvein impressed above, prominent be- 
neath, the secondary veins 3 to 5 to a side, spreading or ascending, plane above, 
raised beneath, the veinlets reticulate, plane or slightly raised on both surfaces; 
inflorescence axillary, subfascieulate or short-racemose (rachis less than 5 mm. 
long), 2 to 6 flowered, glabrous in all parts; pedicels rugose, 15 to 20 mm. long, 
each subtended by an oblong acute bractlet about 2 mm. long, minutely bibracte- 
olate near base, swollen distally and continuous with calyx; calyx coriaceous, 
rugose, 5 angled (angles corresponding to lobes), the tube obprismatlc, 4 to 6 
mm. long, 4 to 5 mm. in diameter at anthesis, the limb erect, 4 to 6 mm. in 
diameter including lobes, the lobes thin-margined, apiculute, 1 to 1.5 mm. long, 
the sinuses rounded; corolla thick-carnose, rigidly cylindric, 15 to 16 mm. long, 
about 4 mm. in diameter, the lobes 1.5 mm. long; stamens about 16 mm. long; 
filaments dark castaneous, about 3 mm. long, loosely coherent at base, pilose at 
margins distally with pnle stiff spreading hairs about 0.2 mm. long; anther 
sacs slightly granular, slender, 9 to 10 mm. long, incurved at base; tubules 
wide, 5 to 6 mm. long, opening by oval clefts about one-third their length; style 
stout, the stigma truncate. 
Type locality : Santa Rosa, Bolivia, altitude 2,000 to 2,600 meters. Type 
collected by Kuntze, April 3, 1892. 
DISTRIBUTION: Known only from the type collection. 
Bolivia: Santa Rosa, Kuntze (B, Y, type). 
A very distinct species of the section Agathothibaudia and sharply distin- 
guished from the two preceding. 
4. Thibaudia pachyantha A. C. Smith, sp. nov. 
Frutex vel arbor parva; laminis ovato-oblongis basi subcordatis vel truncatis 
apice subacutis pinnatinerviis; inflorescentla breviter racemosa glabra; fioribus 
coriaceo-carnosis; calyce campanulato, limbo erecto quam tubo triplo longiore; 
corolla rigida cylindrica; staminlbus aequalibus, filamentis distinctis, antheris 
rigide camosls, tubulis quam loculis triplo brevioribus. 
Shrub or low tree; branchlets subterete, violaceous, glabrous; petioles rugose, 
subterete, 3 to 4 mm. long, glabrous; leaf blades thick-coriaceous, ovate-oblong, 8 
to 12 cm. long, 4 to 7 cm. broad, subcordate or truncate at base, subacute at 
apex, entire and narrowly revolute at margins, glabrous, pinnate-veined, the 
midvein nearly plane above, strongly prominent beneath, the secondary veins 
spreading, ascending and connected near margins, 5 to 8 to a side, plane above, 
prominent beneath, the veinlets reticulate, raised on both surfaces; inflorescence 
short-racemose, glabrous in all parts, 8 to 12 flowered; rachis stout, violaceous, 
glabrous, 1.5 to 2.5 cm. long; pedicels rugose, 20 to 30 mm. long, swollen distally, 
each subtended by a subcoriaceous ovate bractlet about 2 mm. long, articulate 
with calyx; calyx tube thick-coriaceous, subcylindric or campanulate, subrugose, 
about 3 mm. long and 5 to 6 mm. in diameter; limb erect, thick-coriaceous* 8 to 
84377—32 8 
416 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
9 mm. long Including lobes, the lobes deltoid, 1.5 to 2 mm. long, 4 mm. across, 
the sinuses subacute; corolla thlck-corlaceous, rigidly cylindric, 20 to 23 mm. 
long and about 5 mm. in diameter; stamens often slightly exserted; filaments 
castaneous, stout, often loosely coherent, 4 to 5 mm. long, glabrous, leading into 
long, slender connectives; anthers rigidly carnose, granular, 20 to 21 mm. long, 
including tubules, the tubules about 5 mm. long, coriaceous, distinct, opening by 
clefts nearly as long; style filiform, striate, about as long as corolla, the stigma 
truncate. 
Type In the herbarium of the Royal Botanic Gardens, Kew, collected near 
Tuquerres, Department of Narifto, Colombia, altitude 900 meters, by J. Triana 
(no. 2689). 
Distribution : Known only from the type collection. 
The present specimen, although very incomplete, indicates that the plant is a 
striking shrub, rigid In all its parts. It is a very distinct species, as indicated 
in the key. 
5. Thibaudia macrocalyx Bemy, Ann. Set. Nat. III. Bot. 8: 235. 1847. 
Ceratostema serration Britton, Bull. Torrey Club 20:138. 1893. 
Shrub or low tree 2 to 6 meters high; branchlets subterete or rugose, glabrous, 
brownish; petioles rugose, 2 to 4 mm. long, glabrous, narrowly angled; leaf 
blades thick-coriaceous, ovate or oblong-ovate, 5 to 9 cm. long, 2.5 to 4.5 cm. 
broad, truncate or subcuneate at base, obtuse or subacute at apex, shallowly 
serrate and slightly revolute at margins (serrations about 2 or 3 per centi- 
meter) , glabrous and olivaceous above, deciduously pilose beneath with minute 
appressed stout reddish hairs up to 0.4 mm. long, pinnate-veined, the midveln 
Impressed above, prominent beneath, the secondary veins spreading, 3 to 4 to 
a side, nearly plane above, raised beneath, the vein lets reticulate, plane or 
slightly raised on both surfaces; inflorescence subfasciculate or short-racemose 
(rachis less than 1 cm. long), glabrous in all parts, 3 to 6 flowered; pedicels 
rugose, 8 to 12 mm. long, each subtended by a subcoriaceous lanceolate-oblong 
bractlet 3 to 5 mm. long, bi- or tribracteolate near base, swollen distally; calyx 
rugose, the tube short-cylindric or broadly campanula te, 4 to 5 mm. long and 
about 5 mm. in diameter at anthesis, the limb erect, 4 to 5 mm. long including 
lobes, the lobes acute, 1 to 1.5 mm. long; corolla carnose, rigidly cylindric, about 
20 mm. long and 5 mm. in diameter, the lobes oblong, obtuse, about 2.5 mm. long; 
stamens about 18 mm. long; filaments dark castaneous, slender, 4 to 5 mm. long, 
pilose at margins distally with pale spreading hairs up to 0.3 mm. long, leading 
into long slender connectives; anthers golden-yellow, the sacs slightly granular, 
9 to 10 mm. long, the tubules erect, flexible, 5 to 6.5 mm. long, opening by elon- 
gate clefts; stigma peltate. 
Type locality: Cajapi and Tajeti, Yungas, Department of La Paz, Bolivia, 
altitude 3,500 meters. Type collected by D'Orblgny. 
Distribution: Eastern Cordillera of Bolivia, altitude 2,000 to 3,700 meters. 
Bolivia: Huaycani, Pearce, in May, 1866 (K). 
La Paz: Yungas, Unduavi, Pearce, in March, 1866 (K); Ruaby 2035 
(F, G, N, Y, type of Ceratostema serratum) ; Buchtien 30 (B, F, G, 
Y), 910 (F, N) ; Julio 447 (N). Pongo, Tate 200 (Y). 
Although I have not seen the type of this very coherent species, the description 
agrees exactly with the above specimens. It Is an unmistakable species, related 
as indicated in the key. 
6. Thibaudia engleriana Hoer. Bot Jahrb. Bugler 42: 312. 1909. 
Shrub about 2 meters high; branches subterete, cinereous, glabrous; branch- 
lets brownish, stout, sharply angled, glabrous; petioles rugose, 4 to 6 mm. long, 
SMITH—AMERICAN SPECIES OP THIBAUDIEAE 417 
subterete; leaf blades rigidly coriaceous, oblong, 5 to 7 cm. long, 2 to 3 cm. 
broad, subcordate or truncate at base, obtuse at apex, strongly revolute and 
cremate at margins, glabrous, pirmate-vetned, the midveln plane or sulcate above, 
prominent beneath, the secondary veins spreading or ascending, 3 or 4 to a 
side, plane on both surfaces, the veinlets inconspicuous, immersed; inflorescence 
short-racemose, 4 to 8 flowered; rachis subrugose, about 2 cm. long, pale puberu- 
lous when young; pedicels rugose, nigrescent, 16 to 2D mm, long, glabrous, each 
subtended by an oblong, coriaceous, deciduously flmbrlate bract about 3 mm. 
long, bibracteolate near base; calyx tube cylindric, rugose, about 4 mm. long 
and 3.5 mm. in diameter at anthesis, glabrous or sparsely minutely glandular; 
limb rigidly coriaceous, about 6 mm. long including lobes, the lobes acute, 
about 4 mm. long and 4 to 5 mm. broad, the sinuses acute; corolla rigidly car- 
nose, cylindric, glabrous, about 18 mm. long and 5 mm. in diameter; stamens 
slightly shorter than corolla; filaments subcoriaceous, subnigrescent, glabrous, 
loosely coherent, about 3 mm. long; anther sacs slightly granular, 6 mm. long; 
tubules flexible, about 8 mm. long, opening by clefts nearly as long; style 
nigrescent, the stigma truncate. 
Type locality : Huacapistana, Department of Junln, Peru, altitude 3,000 to 
3,100 meters. Type collected by Weberbauer (no. 2055). 
Distribution : Known only from the type collection. 
Peru. 
JtjwIk: Huacapistana, WeJyertauer 2055 (B, type). 
This is a very distinct species, with leaves and flowers approximating the 
preceding, but with extraordinarily stiff angled branchlets. 
7. Thibaudia axillaris Busby, sp. no v. 
Frutex; ramulis angulatis; laminis oblongis vel subspathulatis basi atten- 
uate apice subacutis marglne leviter crenatis et valde revolutls pinnatiner- 
viis; Jnflorescentia subfasciculata glabra; calycis tubo brevlter cylindrico papil- 
loso, limbo erecto quam tubo triplo longiore 5-lobato; corolla coriaceo-carnosa 
rigide cylindrica; staminibus aequalibus, fllamentis distinctis tomentosis, 
antheris longis, tubulis quam Idculls duplo brevioribus. 
Shrub; branch lets sharply angled, cinereous, glabrous; petioles rugose, 
3 to 5 mm. long, angled, glabrous; leaf blades thick-coriaceous, oblong or 
subspatulate, 4 to 6 cm. long, 1.5 to 2 cm. broad, attenuate at base, obtuse 
6r subacute at apex, strongly revolute at margins and shallowly crenate 
towards apex, glabrous, pinnate-veined, the midvein impressed above, prom- 
inent beneath, the secondary veins spreading, 3 to a side, slightly impressed 
above, raised beneath, the veinlets reticulate, slightly impressed above, plane 
beneath; inflorescence subfasciculate, glabrous In all parts, 2 or 3 flowered 
(?) ; pedicels rugose, 8 to 13 mm. long, each subtended by an oblong sub- 
coriaceous bractlet about 2 mm. long, deciduously bibracteolate near base, 
articulate with calyx; calyx tube covered with stout short appressed ascend- 
ing papillae, short-cylindric, about 3 mm. long and 5 mm. in diameter at 
anthesis; limb erect, coriaceous, about 8 mm. long including lobes, the lobes 
apiculate, about 2 mm. long, the sinuses rounded; corolla thick-camose, 
rigidly cylindric, 24 to 27 mm. long and about 5 mm. in diameter, the lobes 
oblong, subacute, about 2 mm. long; stamens as long as corolla or slightly 
exserted; filaments stout, castaneous, distinct, 6 to 7 mm. long, dlstally soft- 
tomentose, especially dorsally, with yellowish hairs about 0.2 mm. long, leading 
into long slender connectives; anther sacs slightly granular, 16 to 17 mm. long; 
tubules flexible, 8 to 9 mm. long, opening by clefts nearly as long; style 
filiform, about as long as corolla, the stigma truncate. 
418 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Type in the herbarium of the New York Botanical Garden, collected at 
Cocopucco, Cordillera Real, Department of La Paz, Bolivia, altitude about 
3,100 meters, March 24 to 29, 1926, by G. H. H. Tate (no. 372). 
Distribution : Known only from the type collection. 
Characterized by angled branch lets, stiffly revolute leaves, papillose calyx 
tube, extraordinarily long anthers, and unusually tomentose filaments. The 
description is Included here at the request of Doctor Busby. 
8. Thibaudia andrei A. C. Smith, sp. nov. 
Frutex vel arbor parva; laminis oblongls basi attenuate vel anguste cuneatls 
apice acutis pinna tinervils; inflorescentia breviter racemosa glabra; calyce 
rigide coriaceo rugoso, tubo apophysato, limbo erecto quam tnbo triplo longiore; 
corolla rigide cylindrical; staminibus aequallbus, fllamentis distinctis superne 
pilosis, antheris rigidis, tubulis erectis quam loculis brevioribus. 
Shrub or small tree; branches and branchlets subterete, rugose, violaceous, 
glabrous; petioles rugose, subnigrescent, up to 5 mm, long, winged distally; leaf 
blades oblong, 10 to 15 cm. long, 4 to 6 cm. broad, attenuate or narrowly cuneate 
at base, acute at apex, entire and slightly revolute at margins, glabrous, pinnate- 
veined, the mldvetn slightly impressed above, very prominent beneath, the 
secondary veins ascending, 3 or 4 to a side, impressed above, prominent beneath, 
the veinlets reticulate, raised beneath; inflorescence short-racemose, glabrous in 
all parts, 6 to 10 flowered; rachis subterete, violaceous, 1.5 to 2 cm. long; 
pedicels rugose, 18 to 22 mm. long, each subtended by an oblong deciduous 
flmbriate bractlet about 2 mm. long, bibracteolate near base (bractlets ovate, 
1 to 2 mm. long, puberulous, sometimes imbricate), swollen distally, obscurely 
articulate with calyx; calyx rigidly coriaceous, rugose, the tube apophysate, 
about 2 mm. long and 5 mm. in diameter at an thesis, the limb erect, 6 to 7 mm. 
long including lobes, the lobes broadly deltoid, about 1 mm. long and 4 mm. 
across, the sinuses rounded; corolla rigidly cylindric, 23 to 26 mm. long and 
about 5 mm. in diameter, the lobes oblong, about 1.5 mm. long and 2 mm. broad; 
stamens about as long as corolla; filaments castaneous, distinct, 4 to 5 mm. 
long, distally pilose with hairs about 0.3 mm. long, leading into long slender con- 
nectives; anther sacs castaneous, rigid, granular, 11 to 15 mm. long; tubules 
erect, rigid, 6 to 10 mm. long, opening by clefts nearly as long (total length of 
anthers about 21 mm.); style angled, tlie stigma truncate. 
Type In the herbarium of the Royal Botanic Gardens, Kew, collected near 
Barbacoas, Department of Narino, Colombia, by E. Andrg (with no. 3028). 
Disthibutton : Andes of southern Colombia. 
Colombia. 
NAaiRo: San Pablo, Andr£, with 1340 (K). 
The above cited specimens are in poor condition, but there is no doubt that 
they represent a distinct species allied to the following but distinguished from 
it by having the leaf apex acute, the calyx noticeably apophysate at base and 
with a long limb, and the anthers longer. 
9. Thibaudia rigidiflora A. C. Smith, sp. nov. 
Frutex; laminis nitidis ellipticis vel obovato-ellipticis basi attenuatis apice 
obtusis pinnatinerviis; inflorescentia racemosa glabra; calyce cylindrico 
5-Iobato; corolla rigide cylindriea; staminibus aeaualibus, fllamentis distinctis 
superne pilosis, tubulis loculos subaequantibus. 
Shrub; branchlets angled, glabrous; petioles glabrous, rugose, thick (3 to 4 
mm. in diameter), 4 to 6 mm. long; leaf blades thick-coriaceous, elliptic or obo- 
vate-elliptic, 9 to 15 cm. long, 4 to 7 cm. broad, attenuate at base, obtuse at 
apex, entire and revolute at margins, glabrous, pinnate-veined, the secondary 
SMITH—AMERICAN SPECIES OF THIBATTDIEAE 419 
veins ascending, 2 to 4 to a side, with the midvein nearly plane above, prom- 
inent beneath, the veinlets reticulate, slightly raised on both surfaces; inflores- 
cence axillary, racemose; rachis rugose, glabrous, 1 to 3 cm. long, bracteate at 
base with minute deciduous bracts; pedicels about 8 per centimeter, slender 
(about 0.8 mm. in diameter), 12 to 20 mm. long, striate, deciduously bibracteo- 
late near base, articulate with calyx; calyx cylindric, 6 to 6.5 mm. long (includ- 
ing tube and limb), 3.5 to 4 mm. in diameter, the lobes triangular, apiculate, 
0.5 to 1 mm. long, 1.5 to 3 mm. across; corolla red, cylindric, 12 to 19 mm. long, 
3 to 5 mm. in diameter, the lobes triangular, acute, 1.5 mm. long; stamens 12 
to 18 mm. long; filaments free, 1 to 3 mm. long, pilose at margins above with 
stiff hairs about 0.3 mm. long, attached to the anther dorsally near its base, lead- 
ing into narrow elongate connectives; anther sacs slightly granular, 5 to 10 mm. 
long; tubules erect, slender, flexible, 6 to 9 mm. long, opening by introrse elon- 
gate clefts; style about as long as corolla, the stigma truncate; young fruit sub- 
spherical, about 6 mm. in diameter, the calyx limb persistent. 
Type in the herbarium of the New York Botanical Garden, collected above 
Bogota, Department of Cundinamarca, Colombia, altitude 2,700 to 2,800 meters, 
August 16,1917, by H. H. Busby and F. W. Pennell (no. 1290A). 
Distbibutiojt : Andes of Colombia, altitude 1,300 to 3,000 meters. 
Colombia. 
Huila : Bast of Neiva, Rushy & Pennell 982 (Y), 983 (F, N, Y). 
AntcoquIa: Jervise (K). Belmira, Santa Rosa, Lehmann 7535 (F, K). 
El Valle : La Cumbre, Pennell & Killip 5802 (B, G, N, Y). 
It is surprising that so widely distributed a species has not been previously 
described. There is no doubt that the above-cited specimens are conspeciflc, the 
shiny obovate leaves giving the plant an unmistakable appearance. It may be 
remarked that the specimens from the Eastern Cordillera have flowers some- 
what smaller in all parts than those from the Central and Western Cordilleras. 
The relation of this species to the preceding has been noted above. 
10. Thibaudia jahnii Blake, Contr. TJ. S. Nat. Herb. 20: 529, 1924. 
Low shrub; branchlets subterete, nigrescent, glabrous; petioles rugose, 3 to 
6 mm. long, glabrous, winged above; leaf blades thick-coriaceous, oblong-ovate, 
5 to 8 cm. long, 2 to 3.5 cm. broad, cuneate or subattenuate at base, subacute or 
short-acuminate at apex, entire and slightly revolute at margins, essentially 
glabrous, pinnate-veined, the midvein slightly impressed above, prominent be- 
neath, the secondary veins 2 or 3 to a side, ascending, plane above, slightly 
raised beneath, the veinlets obscurely reticulate; inflorescence axillary, race- 
mose, glabrous in all parts, 10 to 20 flowered; rachis subrugose, 2 to 3 cm. long; 
pedicels rugose, slender, 8 to 12 mm. long, each subtended by an oblong bractlet 
about 2 mm. long, bibracteolate near base, swollen distally; calyx limb short- 
cylindric or campanulate, about 2 mm. long and 2.5 mm. in diameter at anthesls; 
limb coriaceous, about 2 mm. long including lobes, the lobes short-triangular, 
less than 1 mm. long; corolla carnose, rigidly cylindric, somewhat rugose, about 
12 mm. long and 3 mm. in diameter, the lobes up to 1.5 mm. long; stamens about 
10 mm. long; filaments dark castaneous, distinct, glabrous or very sparsely 
pilose distally, 2 mm. long, leading into long slender connectives; anther sacs 
nearly smooth, 4 to 5 mm. long; tubules erect, flexible, about as wide as sacs, 
4 to 5 mm. long, opening by oval clefts about half as long; stigma peltate. 
Type Loc&LirY; P&ramo de Piflango, Venezuela, altitude 2,800 meters. Type 
collected by Jahn (no. 424). 
Distribution : Known only from the type collection. 
420 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Venezuela: P&ramo de PIfiango, John, 424 (N, type). 
Closely allied to T. formosa, from which It is clearly separable on the 
characters mentioned in the key. A local name is M coralito." 
11. Thibaudia formosa Klotzsch; Schomb. Versuch Fauna & Fl. Br. Guian. 
1088. 1848. 
Psammisia formosa Klotzsch, Linnaea 24:46. 1851. 
Chupalon formosum Kuntze, Rev. Gen. PL 2: 383. 1891. 
Shrub with stout subterete glabrous branchlets; leaves subsessile or with 
short stout winged petioles; leaf blades ovate, 7 to 12 cm. long, 3 to 4.5 cm. 
broad, subacute at apex, attenuate or cuneate at base, entire and slightly 
revolute at margins, thick-coriaceous, often white-punctate on both surfaces, 
the lower surface also with less frequent short-stalked glandular hairs, pinnate- 
veined, the secondary veins arcuate, about 3 to a side, oriented from midvein 
near its base, raised or nearly plane on both surfaces, the veinlets reticulate, 
slightly raised above, plane beneath; flowers about 7 to an infloresence, in 
axillary racemes; rachis 4 to 10 mm. long; pedicels subterete, 12 to 25 mm. 
long, dilated at summit, slenderest at base, bracteolate on lower part with 
several broadly ovate sessile acute bractlets about 0.8 mm. long; calyx cam- 
panula te, about 5 mm. long and 5 mm. In diameter at summit, the lobes 1 mm, 
long; corolla fleshy, cylindric, 8 to 10 mm. long, 2.5 to 3 mm. in diameter at 
base, with broadly triangular lobes about 1 mm. long; stamens 7.5 to 8.5 mm. 
long; filaments fleshy, nigrescent, about 1.7 mm. long, sparsely pubescent at 
their junction with anthers with delicate pale hairs not more than 1 mm. long, 
coherent at base; anther sacs finely granular, 3 to 4 mm. long; tubules mem- 
branous, 3.5 to 4.5 mm. long, with clefts more than half as long; style 9 to 
10 mm. long, the stigma flattened, 1 mm. in diameter. 
Ttpej LOCALITY: Slopes of Mount Roraima, British Guiana. Type collected 
by Schomburgk (no. 1040). 
Distribution : Pacaraima Mountains, altitude 1,000 to 1,500 meters. 
British Guiana : Slopes of Mount Roraima, Schomburglc 1040 (B, type). 
Venezuela. 
Amazonas: Mount Duida, Tate 729 (N, X), 903 (N, Y). 
The name T, formoita was originally published without description; three 
years later Klotzsch described the plant under the generic name Psammteia. 
It is a beautiful sclerophyllous species which should find its way into cultiva- 
tion, and is to be looked for throughout the mountains between the two extreme 
localities cited above. 
12. Thibaudia roraimae Mansf. Notizbl. Bot. Gart. Berlin 9:437. 1925. 
Low shrub; branchlets subterete, glabrous, brownish; petioles rugose, 5 to 
10 mm. long, glabrous, narrowly winged; leaf blades thick-coriaceous, broadly 
ovate or ovate-oblong, 8 to 14 cm. long, 4.5 to 11 era. broad, cuneate at base, 
acute at apex, entire and revolute at margins, essentially glabrous, pinnate- 
veined, the secondary veins 2 or 3 to a side, arcuate-ascending, with the mid- 
vein impressed above, prominent beneath, the veinlets reticulate, plane on both 
surfaces; inflorescence subfasciculate or short-racemose (rachis not more than 
1 cm. long), glabrous in all parts, 0 to 10 flowered; pedicels rugose, 12 to 15 mm. 
long, each subtended by a subcoriaceous oblong bractlet about 2 mm. long, 
bibracteolate near base, swollen distally; calyx rugose, short-cylindric or 
broadly campanulate, the tube about 3 mm. long and 5 mm. in diameter, the 
limb suberect, coriaceous, about 3 mm. long including lobes, the lobes 5 (rarely 
6 or 7), acute, about 1 mm. long, membranous-margined at apex, the sinuses 
rounded; corolla carnose, rigidly cylindric, 7 to 11 mm. long, 3 mm. in diameter; 
SMITH-—AMERICAN SPECIES OF THIBATJD2EAB 421 
stamens 7 to 9 mm. long; filaments dark castaneous, distinct, about 2.5 
long, pilose dorsally and marginally towards apex with pale hairs up to 0.2 mm. 
long; anther sacs nearly smooth, 2.5 to 3 mm. long; tubules wide, flexible, 4 
to 5 mm. long; stigma peltate. 
Ttph LOCALITY: Mount Roraima, British Guiana, altitude 2,100 meters. Type 
collected by Ule (no. 8715). 
Distbibtttioit : Known only from the type locality. 
Bbitibh Guiana: Mount Roraima, Vie 8715 (B, type, Go, K) ; im Thurn 49, 
In part (K, N). 
This species and the two preceding are doubtless closely related, but they 
are easily distinguished from one another on the character of leaf shape. 
13. Thibaudia apophysata Hoer. Bot. Jalirb. Engler 42:314. 1909. 
Shrub about 2 meters high; branchlets subterete, slender, castaneous, gla- 
brous; petioles rugose, 1 to 3 mm. long, narrowly winged, glabrous; leaf 
blades thick-coriaceous, oblong, 6 to 7 cm. long, 1.5 to 2.5 cm. broad, attenuate 
at base, subacute at apex, slightly revolute and shallowly crenate at margins, 
glabrous, pinnate-veined, the secondary veins usually 3 to a side, with the 
mldvein slightly impressed above, raised beneath, the veinlets obscure; in- 
florescence short-racemose, glabrous in ail parts, 6 to 10 flowered; rachis and 
pedicels rugose, violaceous, the rachis about 2 cm. long, the pedicels 18 to 26 
mm. long, each subtended by a minute deciduous bractlet, bibracteolate near 
base (bractlets ovate, acute, about 2 mm. long), swollen distally and obscurely 
articulate with calyx; calyx rigidly coriaceous, rugose, the tube strongly 
apophysata, about 1.5 mm. long and 5 to 6 mm. in diameter at anthesis, the 
limb about 2 mm. long including lobes, the lobes broadly deltoid, about 1 mm. 
long and 4 mm. across, the sinuses flattened; corolla rigidly coriaceous, short* 
cylfndric, 7 to 9 mm. long and about 4 mm. in diameter; filaments nigrescent 
or castaneous, coherent at base, free distally, about 2 mm. long, sparsely pilose 
at margins distally, leading into strong nigrescent connectives; anther sacs 
slightly granular, about 3 mm. long; tubules flexible, about 2.5 mm. long, 
opening by large oval clefts; style stout, the stigma truncate. 
Type locality : Huacapistana, Department of Junln, Peru, altitude 2,800 to 
3,000 meters. Type collected by Weberbauer (no. 2071). 
Distribution : Known only from the type collection. 
Peru. 
JunIn : Huacapistana, Weberbauer 2071 (B, type). 
The present species apparently has no close relatives, being quite unrelated 
to the preceding group from the Pacaraima Mountains, with which it is artifi- 
cially keyed. In many respects (aspect of foliage, Inflorescence, and external 
appearance of flowers) it is suggestive of such species of Psammisia as P. 
lehmamnli, 
14. Thibaudia cupatensis Huber, Bol. Mus. Goeldi 7:304. 1913. 
Scandent epiphytic shrub; branches and branchlets subterete, cinereous, 
glabrous; petioles shallowly grooved above, stout (about 2.5 mm. in diameter), 
5 to 7 mm. long, glabrous; leaf blades coriaceous, oblong-ovate, 7 to 10 cm. 
long, 4 to 5 cm. broad, rounded or subcuneate at base, obtuse at apex, shal- 
lowly crenate at margins, glabrous, pinnate-veined, the midvein slightly im- 
pressed above, prominent beneath, the secondary veins arcuate-ascending, about 
4 to a side, plane above, slightly raised beneath, the veinlets copiously reticu- 
late, plane; inflorescence subfasciculate or short-racemose, 8 to 12 flowered; 
rachis stout, 3 to 5 mm. long, glabrous; pedicels flexuoee, 5 to 7 mm. long, 
each subtended by a coriaceous ovate bractlet 1.5 mm. long, bibracteolate at 
422 CONTRIBUTIONS FROM THE NATIONAL. HERBARIUM 
middle; calyx tube short-cylindric or subepherical, 2 mm. long and 2.5 mm. In 
diameter at anthesis, faintly and declduously puberulent; limb about 1.5 mm. 
long including lobes, the lobes apiculate, 0.5 mm. long and 2 mm. across base; 
corolla minutely puberulous, cylindric, 10 to 12 mm. long, about 4 mm. in 
diameter, the lobes acute, 1 mm. long; stamens about 9 mm. long; filaments 
free, stout, about 2.5 mm. long, narrowed above, marginally pubescent above 
with stiff brown hairs, the connectives slender, alternately equipped with very 
minute vestigial spurs (as Psammisia) ; anther sacs smooth, about 3 mm. long; 
tubules erect, wide, flexible, about 5 mm. long, opening by introrse clefts about 
half their length. 
Type locality ; Cupati, Rfo CaquetA, Intendencia of Caquetft, Colombia. 
Type collected by Ducke {no. 12275). 
Distribution : Known only from the type collection. 
Colombia. 
CaquetA: Cupati, Rio Caquetfi, Ducke 12275 (N, type collection). 
This is the only species of Thibaudia known to me which bears peammisiold 
spurs on the connectives. In all other respects It is a true ThibcHtdia and is 
certainly best left in this genus. 
15. Thibaudia glandulifera A. C. Smith, Bull. Torrey Club 58: 439. 1931. 
Straggling shrub about 1 meter high; branchlets grayish, glabrous or 
sparsely pubescent with declduously glandular hairs; leaf blades thick-cori- 
aceous, ovate, 2 to 3.5 cm. long, 12 to 18 mm. broad, glabrous or sparsely white- 
punctate or sparsely pubescent on both surfaces with minute black hairs, 
subacute at apex, entire or bluntly serrate at margins, rounded or cuneate at 
base to a thick petiole 2 to 3 mm. long, pinnate-veined, the midvein Im- 
pressed above, raised beneath, the secondary veins about 3 to a side, arcuate, 
obscure or faintly raised on both surfaces, the veinlets reticulate, obscure 
or plane; flowers fasciculate in groups of about 5, the fascicles axillary near 
ends of branchlets; pedicels slender, striate, 10 to 13 mm. long, pubescent 
with close minute short pale hairs (0.1 mm. long) and also with scattered 
erect ferruginous glandular hairs (0.9 to 1.5 mm. long), with a few triangular 
acute sessile bractlets near base; calyx campanulate, pubescent with glandular 
hairs, about 4 mm. long and 4 mm. in diameter at summit; corolla cylindric, 
somewhat carnose, glabrous, 12 to 13 mm. long, 2 to 3 mm. in diameter at 
base; stamens 9 to 10 mm. long; filaments 3.5 to 5 mm. long, sparsely pilose 
distally, l6osely connate at base; anther sacs granular, about 1.5 mm. long; 
tubules membranous, about 4.7 mm. long; style about 10 mm. long, the 
stigma hemispherical; fruit subspherical, 6 mm. or more in diameter, retaining 
pubescence of calyx. 
Type locality : Summit of Mount Duida, State of Ainazonas, Venezuela, 
altitude about 1,925 meters. Type collected by 6. H. H. Tate (no. 409). 
Distribution: Known only from Mount Duida, altitude 1,700 to 2,000 
meters. 
Venezuela. 
Amazonas: Summit of Mount Duida, Tate 409 (T, type), 457 (Y). 
This species and the three following are all closely allied, but are separable 
on the characters mentioned in the key. They form a group which must have 
been long isolated from the Andean species. Doubtless other species of this 
affinity await collection in the Pacaraima Mountains. The present species 
is well marked from the other three by the glandular hairs of its pedicels and 
calyces. Possibly two other specimens from Mount Duida (Tate 754 and 755) 
should be included here, but they have larger leaves of a slightly different 
SMITH—AMERICAN SPECIES OF THIB ATJDIBAE 423 
texture. Since they are in fruit, it can not be said whether they are really 
distinct from this species. 
16. Thibaudia involucrata A. C. Smith, Bull. Torrey Club 58: 440. 1931. 
Low shrub; branchlets subterete, glabrous; petioles stout, about 5 mm. long, 
winged nearly to base; leaf blades thick-coriaceous, broadly ovate, 3.5 to 7 cm. 
long, 2 to 4 cm. broad, obtuse or subacute at apex, cuneate at base, entire or 
sballowly serrate at margins, slightly revolute, sparsely black-punctate on 
both surfaces, pinnate-veined, the midvein Impressed above, prominent beneath, 
the secondary veins 3 to 5 to a side, arcuate or spreading, plane above, raised 
beneath, the velnlets reticulate, obscure above, raised beneath; flowers in 
axillary fascicles, 3 to 5 to an inflorescence, each fascicle circumscribed by a 
few sabcorlaceous, triangular, obtuse, faintly dilate bracts about 1 mm. long; 
pedicels, involucres, calyces, and corollas finely puberulent with minute pale 
hairs; pedicels subterete, stout, 3 to 5 mm. long, surmounted by persistent in- 
volucres of 2 coriaceous keeled acute fused bracts 1 to 2 mm, long; calyx tube 
subcylindric, about 2 mm. long, the limb about 1.5 mm. long, the lobes about 
1 mm. long; corolla fleshy, cylindric, 7 to 8 mm. long, about 2.5 mm. in diameter 
at base; stamens 5 to 6 mm. long; filaments about 2.5 mm. long, sparsely 
pilose distally, loosely connate at base; anther sacs finely granular, about 1.2 
mm. long; tubules membranous, about 3 mm. long, opening by introrse clefts; 
stigma flattened; fruit spherical, 3 to 4 mm. in diameter, coriaceous, the calyx 
persistent. 
Type locality: Summit of Mount Dulda, State of Amazonas, Venezuela, 
altitude 1,850 meters. Type collected by G. H. H. Tate {no. 525). 
DISTRIBUTION: Known only from Mount Duida, altitude 1,850 to 1,900 meters. 
Amazonas: Summit of Mount Dulda, Tate 525 (Y, type), 694 (N, Y), 
Closely allied to the following, but unique in its two fused bractlets sur- 
mounting the pedicel. 
17. Thibaudia nutans Klotzsch; Schomb. Versuch Fauna & PI. Br. Guian, 
1088. 1848, nomen; Mansf. Notizbl. Bot. Gart, Berlin 9:438. 1925. 
Ceratostema nutans Nledenzu, Bot. Jahrb. Engler 11; 224. 1889, nomen. 
Psammisia ooriacea N. E. Brown, Trans. Linn. Soc. Bot. II. 6: 42. 1901. Not 
Thibaudia ooriacea Blume, 1825-26, 
Ceratostema ulei Mansf. Notizbl. Bot. Gart. Berlin 9: 438. 1925. 
Low shrub; branchlets subterete, glabrous, cinereous; petioles rugose, 3 to 
8 mm. long, glabrous, angled above; leaf blades thick-coriaceous, ovate, 3 to 
10 cm. long, 2.5 to 6 cm. broad, cuneate or rounded at base, rounded or 
subacute at apex, entire at margins, glabrous, olivaceous or brownish, pinnate- 
veined, the midvein slightly impressed above, raised beneath, the secondary 
veins close, 3 to 5 to a side, nearly plane on both surfaces, the veinlets 
reticulate, obscure above, plane or slightly raised beneath; inflorescence axillary, 
subfasciculate, glabrous In all parts, 2 to 6 flowered; pedicels rugose, 5 to 
15 mm. long, each subtended by an ovate bract 1 to - mm. long, bibracteolate 
near middle, slightly swollen distally; calyx rugose, the tube campanulate, 
1.5 to 3 mm. long, 2 to 3 mm. in diameter at anthesis, the limb suberect, 
1.5 to 3 mm. long including lobes, the lobes 4 to 6, often in a state of semi- 
fusion, acute, about 1.5 mm. long; corolla cylindric, glabrous or sparsely 
farinose, 8 to 14 mm. long, 3 to 5 mm. in diameter, the lobes 5 or 6, 1.5 to 
2 mm. long; stamens 10 or 12, equal, 6 to 10 mm. long; filaments dark 
castaneous, distinct, slender, glabrous or very sparsely pilose distally, 3 to 
5 mm. long; anther sacs smooth, 2 to 2.5 mm. long; tubules wide, flexible. 
424 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
distinct to base, 3 to 4 mm. long, opening by elongate clefts about half their 
length; style striate, the stigma peltate. 
Typo locality ; Mount Roraima, British Guiana, altitude 1,600 meters. Type 
collected by Schomburgk (no. 873). 
Distribution : Highlands of western British Guiana, and westward along 
the Brazilian-Venezuelan Boundary, altitude 800 to 1,800 meters. 
Beitish Guiana; Schomburgk (E). Kaieteur Savanna, Jenman 1031 (K); 
im Thurn (K). Mount Roraima and vicinity, SchOrriburgk 566 (K), 
873 (B, type), 567/873 (K), 924 (B); im Thum 56 (K, N); Ule br. 
40 (B, type of Oeratostema ulei), 8719 (B, Go); Tate 284 (7), 402 
(Y); McConnell & Quelch 662 (K, type of Paammisia coriacea). 
Brazilian-Venezuelan Boundary : Western foothills of Serra Imeri, near 
Salto de Hufi, Holt d Blake 499 (N, Y). 
Among the above-cited specimens there is a good deal of variation in leaf 
size, the smallest leaves being found in the Ule specimens. However, there is 
no justification for recognising more than one species among the specimens 
I have seen. 
This species was not actually described by Klotzsch, the first complete 
description being by Mansfeld, who failed to note its identity with the Ule 
collection. 
18. Thibaudia truncata A. C. Smith, Bull. Torrey Club 58: 440. 1931. 
Low shrub; branchlets terete, glabrous; petioles about 4 mm. long, stout; 
leaf blades thick-coriaceous, ovate, 3 to 4.5 cm. long, 2 to 3 cm. broad, glabrous, 
sometimes sparsely punctate on both surfaces, subacute at apex, rounded at 
base, entire and plane at margins, decurrent on petiole, pinnate-veined, the 
midvein impressed above, raised beneath, the secondary veins 3 or 4 to a side, 
spreading, obscure above, plane or slightly raised beneath, the velnlets reticu- 
late, obscure; flowers axillary, apparently solitary, finely puberulent on all ex- 
terior surfaces with minute pale hairs; pedicels striate, slender, 9 to 10 mm. 
long, with 2 or 3 triangular acute sessile bractlets on the lower half; calyx 
campanulate, slightly constricted at summit of tube, about 3 mm. long, 4 mm. 
In diameter at summit, with 5 minute apiculate teeth; corolla somewhat fleshy, 
cyllndrlc, 10 mm. long, 2 to 3 mm. in diameter at middle; stamens about 9 mm. 
long; filaments about 3.5 mm. long, faintly pilose distally, loosely connate at 
base; anther sacs finely granular, about 2 mm. long, the tubules membranous, 
about 4 mm. long; stigma peltate. 
Type locality: Summit of Mount D ill da, State of Amazonas, Venezuela, 
altitude about 2,200 meters. Type collected by G. H. H. Tate (no. 602). 
Distribution : Known only from the type collection. 
Venezuela. 
Amazonas: Summit of Mount Dulda, Tate 602 (Y, type). 
This species is distinct from the preceding on the basis of its truncate calyx 
limb and pale puberulous flowers. 
19. Thibaudia laxa A. O. Smith, sp. nov. 
Frutex gracllis; ramis ramullsque laxis glabrescentlbus; lamlnis ovato- 
oblongis bast subcordatis vel rotundatis apice longe acuminatis 3-pli-nerviis; 
inflorescentia laxe racemosa molliter pilosa; calyce prismatico 5-angulato; 
corolla cylindrico-urceolata; staminibus aequalibus, filamentis dlstinctis superne 
piloslSf tubulis flexlllbus quam loculis longiorlbus. 
Shrub about 3 meters high with lax branches; branchlets subterete, glabrous 
or sparsely puberulous; petioles about 2 mm. long, essentially glabrous; leaf 
blades subcoriaceous, ovate-oblong, 4 to 6 cm. long, 1.5 to 2.5 cm, broad, subcordate 
SMITH—AMERICAN" SPECIES OP THIBAUDlEAE 425 
or rounded at base, long-acuminate at apex, entire at margins, essentially glabrous 
(sparsely hispid on midnerve beneath), 3-pli-nerved, the second and. third nerves 
extending about halfway to apex, the midnerve impressed above, prominent 
beneath, with several secondary nerves; inflorescence racemose; rachis slender, 
subterete, 1.5 to 2 cm. long, soft-pilose (hairs pale, spreading, about 0.15 mm. 
long), circumscribed at base by numerous ovate bractlets up to 2 mm. long; 
pedicels slender (about 0.3 mm. in diameter), 14 to 20 mm. long, strlate, pilose 
as the rachis, each subtended by a lanceolate subpilose bractlet about 2 mm. 
long and bibracteolate towards base; calyx prismatic, 5-angled (angles oppo- 
site the sinuses), pilose as the pedicels, the tube 3 mm. long and 4 mm. in 
diameter, the limb spreading, about 2 mm. long including lobes, the lobes tri- 
angular, acute, 1.5 mm. long, 2 mm. across base; corolla rose-red, sericeous 
(hairs pale, about 0.2 mm. long), cylindric-urceolate, 6 to 8 mm. long, 3 to 4 
mm, in diameter near base, the lobes triangular, about 1 mm. long; stamens 
equal, 5 to 6.5 mm. long; filaments free, about 2 mm. long, stiff-pilose above 
(hairs about 0.3 mm. long), attached to the anther dorsally near its base; 
anther sacs smooth, 2 to 2.5 mm. long; tubules erect, wide, flexible, 3 to 3.5 
mm. long, opening by distal introrse elongate pores up to 2 mm. long; style 
about 0.2 mm. in diameter, the stigma peltate. 
Type in the herbarium of the Field Museum of Natural History, no. 562,442, 
collected at Putls, Choimacota Valley, Department of Ayacucho, Peru, altitude 
3,200 meters, February 27 to March 12, 1926, by A. Weberbauer (no, 7532). 
Distribution : Peru, probably limited to the southern part. 
Pbru(?) : Cuitoc, about 3,000 meters, Pearoe (K). 
This is an isolated species, in habit suggesting Themistoclesia, but on the 
basis of its flower structure it is best placed in Thibaudia. Its distinguishing 
features are the slender lax branchlets with truncate-based leaves, the short 
racemose flowers, and the slender elongate pedicels. 
20. Thibaudia costaricensis Hoer. Bot. Jahrb. Engler 42: 311. 1909. 
Psammisia rhododelph4s K. Sebum.; WercklS, Bol. Fomento Costa Rica 1: 934, 
1011, nomen. 
Low shrub with elongate branches, usually epiphytic; branchlets terete, 
cinereous, glabrous; petioles subterete, slightly rugose, 3 to 5 mm. long, winged 
above, glabrous; leaf blades chartaceous or thin-coriaceous, oblong or lanceolate- 
oblong, 12 to 20 cm. long, 3.5 to 5 cm. broad, cuneate at base, caudate-acuminate 
at apex, entire and slightly revolute at margins, glabrous, 5-pli-nerved, the 
secondary nerves oriented near base, with the midnerve impressed above, promi- 
nent beneath, the velnlets reticulate, slightly raised on both surfaces; inflores- 
cence axillary, copious, racemose, 15 to 30 flowered; rachis slender, 2 to 5 cm. 
long, frequently with a few secondary branches nearly as long, laxly and 
sparsely puberulous or glabrous; pedicels subterete, 10 to 16 mm. long, dull red, 
glabrous or puberulous as the rachis, each subtended by a minute deciduous 
bractlet, deciduously bibracteolate near base, swollen distally; calyx rugose, 
sparsely puberulous or glabrous, the tube campanulate, about 2 mm. long and 
2.5 mm. in diameter at anthesis, the limb 1 to 2 ram. long including lobes, the 
lobes acute, 0.5 to 1 mm. long, sometimes cartilaginous; corolla 9 to 10 mm. 
long, cylindric, 3 to 3.5 mm. in diameter, slightly contracted at throat, the lobes 
about 1 mm. long; stamens about 7 mm. long, equal or subequal; filaments 
castaneous, membranous, firmly connate in a tube, glabrous, 3 mm. long, lead- 
ing Into slender connectives; anther sacs smooth, 2 mm. long; tubules wide, 
flexible, distinct to base, about 3 mm. long, opening by oval clefts about half 
their length; stigma broadly peltate. 
426 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Txpe locality: La Palma, Province of San Jose, Costa Rica, altitude 1,500 
meters. Type collected by Werckl6 (no. 20). 
Distribution : Mountains of Costa Rica, altitude 1,400 to 1,600 roeters. 
Costa. Rica: Werckte (V) 3 (33). 
San JosS: La Palma, Wercklt 20 (B, type), 52 (B); Standley 33002 (N)( 
38053 (N), 38072 (N). 
Cabtago: El Mufieco, on Rio Navarro, StatuHey A Torres 51292 (N), 
51376 (N). 
This species, with the three following, forms a very distinct group. It is the 
only Thibaudia found in Central America; with its large leaves and beautiful 
paniculate inflorescence it would be an excellent plant for cultivation. 
21. Thibaudia paniculata A. C. Smith, sp. nov. 
Frutex vel arbor parva; laminis subbullatis ovato-oblongis basi rotundatis 
apice abrupte caudato-acuminatis G ad 7 pli-nerviis; inflorescentia paniculata 
multiflora glabra; calyce campimulato rugoso 5-lobato; corolla cylindrica; 
staminibus subaequalibus, filamentis connatis glabris, tubulis flexilibus loculos 
subaequantibus. 
Shrub or small tree; branchlets terete, slender, glabrous, stramineous, some- 
what flexuose; petioles sub terete, rugose, 5 to 7 mm. long, glabrous; leaf blades 
thin-coriaceous, somewhat bull ate, ovate-oblong, 11 to 15 cm. long, 5 to 8 cm. 
broad, rounded at base, abruptly caudate-acuminate at apex (acumen about 1.5 
cm. long), entire and narrowly revolute at margins, glabrous, 5 to 7 nerved 
from the base, the principal nerves impressed above, strongly prominent be- 
neath, the veinlets reticulate, slightly raised above, prominent beneath; inflo- 
rescence axillary, paniculate, many-flowered, essentially glabrous in all parts; 
primary raehis 3 to 4 cm. long, sub terete, rugose; secondary branches of the 
Inflorescence about 15, spreading, 2 to 4 cm. long, each subtended by an ovate 
flmbriate bract about 3 mm. long; pedicels subterete, rugose, flexuose, 10 to 13 
mm. long, each bracteate at base and bibructeolate slightly below middle, ob- 
scurely articulate with calyx; calyx tube campanulate, rugose, 1 to 1.5 mm. 
long, 2.5 to 3 mm. in diameter at anthesis; limb 2 to 2.5 mm. long including 
lobes, the lobes acute, about 1 mm. long and 2 mm. broad, the sinuses rounded; 
corolla subcarnose, cylindric, 13 to 16 mm. long, 3 to 4 mm. in diameter, the 
lobes small, triangular; stamens about 10.5 mm. long, alternately slightly un- 
equal ; filaments submembranous, castaneous, flrmly connate in a tube, glabrous, 
about 3.5 mm. long, leading into slender connectives; anther sacs slightly gran- 
ular, about 4 mm. long; tubules wide, flexible, about 4 mm. long, opening by 
large oval clefts nearly as long; style flexuose, the stigma broadly peltate, 
1 mm, in diameter. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected at 
Timbiqut, Department of El Cauca, Colombia, in 1603, by F. C. Lehmann (no. 
K176). 
Distribution : Known only from the type collection. 
A handsome plant, related to the preceding, but separable on leaf characters 
and flower size. The leaves are abruptly caudate-acuminate and noticeably 
bullate, and the flowers are larger than those of T. oo&taricensis. 
22. Thibaudia archer! A. C. Smith, sp. nov. 
Frutex subscandens; ramis ramulisque glabris fuscis; laminis oblongls basi 
cuneatis apice subacutis vel breviter acumlnatis 7-pli-nerviis; inflorescentla 
paniculata robusta multiflora aubglabra; calyce campanulato 5-lobato; corolla 
tenuiter carnosa cylindrica; staminibus aequalibus. filamentis connatis glabris, 
tubulis membranaceis quam loculis paullo brevioribus. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 427 
Subscandent shrub about 5 meters high; branches and branchlets terete, stiff, 
stout, glabrous, brownish; petioles stout, rugose, glabrous, 8 to 13 mm. long; 
leaf blades coriaceous, olivaceous, glabrous, oblong, 18 to 22 cm. long, 5 to 6.5 cm. 
broad, cuneate at base, subacute or bluntly short-acuminate at apex, entire at 
margins, 7-pU-nerved, the principal nerves oriented near base, plane or slightly 
raised above, prominent beneath, the veinlets reticulate, obscure; inflorescence 
from older parts of branchlets, paniculate, many-flowered, minutely and 
sparsely strigose on external surfaces when young, becoming essentially 
glabrous; primary rachis slightly angled, stout, 2 to 4 cm. long; secondary 
branches of inflorescence about 12, widely spreading, 2 to 6 cm. long, each sub- 
tended by an ovate subinembranous bract about 2 mm. long; pedicels striate, 9 
to 16 mm. long, swollen distally, each subtended by a small bract and minutely 
bibracteolate at middle, articulate with calyx; calyx tube campanulate, about 
1.5 mm. long and 3 mm. in diameter at anthesis; limb about 2 mm. long includ- 
ing lobes, the lobes triangular, about 1 mm. long, the sinuses rounded; corolla 
thin-carnose, 12 to 17 mm. long at maturity, 3 to 4 mm. in diameter, the lobes 
small, triangular, obtuse; stamens equal, 10 to 11 mm. long; filaments mem- 
branous, pale, glabrous, firmly connate in a tube and adherent to corolla at 
base, 5 to 6 mm. long; anther sacs narrowed at base, 4 mm. long; tubules 
membranous, flexible, 2.5 to 3 mm. long; stigma broadly peltate. 
Type in the U. S. National Herbarium, no. 1,499,338, collected at La Con- 
cepcifin, Department of El Choc6, Colombia, April 30, 1931, by W. A. Archer 
(no. 2013). 
Disxbibution : Known only from the type collection. 
In floral characters this species is practically identical with T. panioulata, 
from which it differs by having the leaves narrower in proportion, cuneate 
rather than rounded at base, and decidedly not bullate. In common with 
T. panioulata, the present species has flowers larger than those of T. costari- 
censis, from which it Is distinguished also by its larger leaves and more robust 
inflorescence. The three species are very closely allied. 
Explanation of Plate 12.—Thibaudia archeri, from photograph of type sheet. One- 
half natural size. 
03. Thibaudia pennellii A. C. Smith, sp. nov. 
Frutex; laminis oblongis vel ovato-oblongis basi cuneatis apice acutis subtus 
parce pilosis glabrescentibus 5 ad 7 pll-nerviis; inflorescentia racemosa con- 
Stan ter ubique pubescente; calyce campanula to 5-lobato; corolla tenuiter 
camosa subcylindrica; fllamentis connatis dense pilosis, tubulis loculos sub- 
aequantibus. 
Shrub; branchlets subterete, stout, puberulous or glabrous, cinereous; 
petioles sub rugose, 6 to 11 mm. long, slightly puberulous or glabrous; leaf blades 
thick-coriaceous, oblong or ovate-oblong, 14 to 17 cm. long, 4.5 to 5.5 cm. 
broad, cuneate at base, acute at apex, entire and slightly revolute at margins, 
glabrous above, sparsely pilose beneath, with minute appressed hairs about 3 
per square millimeter of surface, becoming glabrous, 5 to 7 pli-nerved, the 
secondary nerves oriented near base or slightly above, with midnerve nearly 
plane above, prominent beneath, the veinlets reticulate, plane or slightly raised 
on both surfaces; inflorescence axillary, racemose, 10 to 15 flowered; rachis 
angled, 1.5 to 4 cm. long, regularly and persistently pubescent with pale spread- 
ing hairs up to 0.3 mm. long, circumscribed at base by numerous imbricate 
coriaceous oblong acute bracts up to 10 mm. long; pedicels striate, 6 to 10 mm. 
long, pubescent as the rachis, each subtended by a minute bractlet and minutely 
bibracteolate at middle, slightly swollen distally; calyx tube subcylindrlc or 
campanulate, 2.5 mm. long and 2.5 mm. in diameter at anthesis, sparsely pilose 
428 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
with pale hairs about 0.2 mm. long; limb 1.5 to 2 mm. long including lobes, 
the lobes aptculate, about 1 mm. long; corolla subcylindric, thin-carnose, about 
IS mm. long, 2.5 mm. in diameter, sparsely pilose with pale yellow hairs up 
to 0.3 mm. long, the lobes triangular, about 1 mm. long; stamens 8 to 9 mm. 
long; filaments castaueous, submembranous, firmly connate in a tube 2 mm. 
long, densely pilose distally dorsally with pale brown ascending hairs 0.3 mm. 
long; anther sacs nearly smooth, about 4 mm. long, narrowed and setose at 
base; tubules wide, flexible, 3 to 4 mm. long, opening by oval clefts nearly as 
long; stigma truncate. 
Type in the herbarium of the New York Botanical Garden, collected in forest 
at Murillo, Department of Tolima, Colombia, altitude 2,100 to 2,500 meters, 
December 18, 1917, by F. W. Pennell (no. 3179). Duplicate in the U. S. 
National Herbarium. 
Distribution: Known only from the type collection. 
This species, which is without close relatives, is sharply distinguished from 
the two preceding by the uniform pubescence of its flowers. 
24. Thibaudia parvifolia (Benth.) Hoer. Bot Jahrb. Engler 42:275. 1909. 
Ceratostema parvifolium Bentli. PI. Hartw. 220. 1846. 
Eurygania parvifolia Benth. & Hook. Gen. PI. 2: 568. 1876. 
Low shrub; branches and branchlets subterete, cinereous or brownish, glabrous 
or minutely puberulous; petioles subterete, rugose, nigrescent, glabrous, about 
2 mm. long; leaf blades oblong, 14 to 18 mm. long, about 6 mm. broad, rounded 
or broadly cuneate at base, subacute at apex, strongly revolute and crenate at 
margins, glabrous, rigidly coriaceous, obscurely pinnate-veined, the midvein 
impressed-sulcate above, raised beneath, the secondary veins 2 or 3 to a side, 
spreading, usually obscure; inflorescence axillary, near ends of branchlets, fas- 
ciculate ; flowers 1 or 2 to an inflorescence; pedicels strongly rugose, 5 to 8 mm. 
long, glabrous, subtended at base by 2 or 3 minute ovate bractlets; calyx coria- 
ceous, rugose, glabrous, the tube cylindric, about 2.5 mm. long, 1.5 to 2 mm. in 
diameter at an thesis, the limb suberect, 3 to 3.5 mm. long including lobes, the 
lobes 4 or 5, ovate, apiculate, about 2 mm. long and 2.5 mm. broad; corolla 
cylindric, subrugose, glabrous or minutely puberulous, 17 to 19 mm. long, 3 to 4 
mm. in diameter, the lobes oblong, about 2 mm. long; stamens about 13 mm. 
long; filaments dark castaneous, about 4 mm. long, firmly connate in a tube, 
pilose at margins distally with hairs about 0.2 mm. long, continued into slender 
connectives; anther sacs nearly smooth, about 4.5 mm. long; tubules wide, 
flexible, about 5.5 mm, long, opening by clefts about half as long; stigma 
truncate. 
Type locality : Near Laguna de Guanacas, Department of E51 Cauca, Colom- 
bia, altitude about 3,700 meters. Type collected by Hartweg (no. 1208). 
Distribution : Known only from the type collection. 
Colombia. 
El Cauoa: Near Laguna de Guanacas, Hartweg 1208 (K, type). 
A low compact sclerophyllous shrub, distinguishable as suggested in the key. 
25. Thibaudia tomentosa Hoer. Bot. Jahrb. Engler 42:312. 1909. 
Shrub, about 2 meters high; branches and branchlets subterete, covered 
with a loose, brownish, deciduously pilose bark; petiolfcs subterete, rugose, 
2 to 3 mm. long, pale pilose; leaf blades narrowly oblong, 2.5 to 3.5 cm. long, 
less than 1 cm. broad, attenuate at base, rounded at apex, strongly revolute 
and crenate at margins, deciduously pilose on both surfaces (hairs pale, up to 
0.5 mm. long), pinnate-veined, the midvein impressed-sulcate above, prominent 
beneath, the secondary veins 2 or 3 to a side, obscure; inflorescence copious 
SMITH—AMERICAN SPECIES OF THIBAT7DIEAE 429 
near ends of branchlets, short-racemose, densely tomentose in all parts (hairs 
pale, matted, about 0.5 mm. long), 6 to 12 flowered; rachls subrugose, about 
1 cm. long; pedicels striate, 6 to 10 mm. long, each subtended by an ovate 
bractlet less than 1 mm. long, deciduously bibracteolate near base; calyx 
tube campanulate, about 1.5 mm. long and 2 mm. in diameter; limb about 2.5 
mm. long Including lobes, the lobes 1 to 2 mm. long, about 2.5 mm. broad; 
corolla subcarnose, cylindric, 12 to 13 mm. long, 3 to 3.5 mm. in diameter, the 
lobes about 1 mm. long, sparsely short-pilose within; stamens 8.5 to 9 mm. 
long; filaments castaneous, loosely connate, about 2 mm. long, densely pilose 
dlstally with hairs about 0.5 mm. long, continued into slender connectives; 
anther sacs nearly smooth, about 2.5 mm. long, sparsely pilose at base; tubules 
flexible, about 5 mm. lonjj, opening by clefts about half as long; stigma 
truncate. 
Type locality: Motfnopampa, east of Chachapoyas, Department of Ama- 
zonas, Peru, altitude 2,300 to 2,400 meters. Type collected by Weberbauer 
(no. 4374). 
Distribution : Known only from the type collection. 
Pebu. 
Amazon as: Molinopampa, east of Chachapoyas, Weberbauer 4374 (B, 
type). 
The densely tomentose inflorescence of this species is approached only by 
that of T. anomala. 
26. Thibaudia anomala A. C. Smith, sp. nov. 
Frntex compactus; Iaminis ovato-oblongis basi cuneatis aplce subacutls 
margine subserratis obscure 3-nerviis; inflorescentia subfasciculata basi bracteis 
magnis deciduis instructa; calyce dense tomentoso, limbo erecto quam tubo duplo 
longiore 5-lobato, lobis elonga to-triangularibus; corolla cylindrica extus tomen- 
tosa intus glabra; staminibns aequalibug, fllamentls conaatis ad margines pilosis, 
tubulis flexilibus quam loculis duplo brevioribus. 
Shrub; branches and branchlets stout, subterete, clothed with a deciduous 
glabrous nigrescent bark; petioles rugose, narrowly angled, 2 to 3 mm. long, 
glabrous; leaf blades ovate-oblong, 2.5 to 3.5 cm. long, 1 to 1.5 cm. broad, cnneate 
or subattenuate at base, acute or subacute at apex, shallowly crenate-serrate at 
margins, glabrous above, deciduously sparsely pilose beneath with minute brown 
hairs, obscurely 3-nerved from base, the midnerve slightly impressed above, 
raised beneath, with 2 or 3 obscure lateral nerves; inflorescence axillary near 
ends of branchlets, subfasciculate, 3 to 8 flowered, circumscribed at base by 
several deciduous cavendishioid bracts up to 1 cm. long; pedicels striate, about 
1 cm. long, spreading-pilose with pale stiff hairs about 0.7 mm. long, decidu- 
ously bibracteolate near base, obscurely articulate with calyx; calyx densely 
tomentose, especially towards base, with yellowish hairs like those of the pedi- 
cel, the tube short-cylindric, 2.5 to 3 mm. long, 2 mm. in diameter at anthesls, 
the limb erect, thin-coriaceous, 7 mm. long including lobes, the lobes elongate- 
triangular, acute, about 3 mm. long and 1.5 mm. across; corolla tomentose as 
the calyx, thin-camose, cylindric, 10 to 11 mm. long, 2,5 to 3 mm. in diameter, 
glabrous within, the lobes triangular, about 1 mm. long; stamens about 7 mm. 
long; filaments castaneous, submembranous, about 2 mm. long, firmly connate 
in a tube, densely pilose at margins dlstally with hairs up to 0.4 mm. long, 
continued into slender connectives; anther sacs nearly smooth, produced at base 
into a caudate tip, 4 mm. long; tubules flexible, 2 mm. long, opening by clefts 
about half as long; stigma peltate. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected in 
Colombia or Ecuador by E. Andr& 
430 CONTRIBUTIONS PROM THE NATIONAL HERBARIUM 
Distribution : Doubtful, the type specimen being without definite data. 
It la unfortunate that this peculiar little plant is so completely without data. 
It Is not closely allied to any other species of Thibaudia t being unique In Its 
long erect calyx limb and its comparatively large bracts. These characters 
suggest certain species of CavendUhia, but in stamina! structure our plant is 
certainly a Thibaudia. 
27. Thibaudia phyllireaefolia Dun.; DC. Prodr. 7:564. 1839. 
Eurygania phyllireaefolia Benth. & Hook. Gen. PI. 2: 568. 1876. 
Low shrub; branchlets terete, loosely clothed with a cinereous deciduously 
puberulous bark; petioles sub rugose, pilose as the young branchlets, 2 to 3 mm. 
long; leaf blades narrowly oblong, 3 to 4 cm. long, about 1 cm. broad, narrowly 
cuneate or attenuate at base, obtuse at apex, cremate serrate at margins (ser- 
rations 4 or 5 per centimeter), essentially glabrous (sometimes on both sur- 
faces pilose with a few lax pale hairs and also with a few stiff brown op- 
pressed hairs), pinnate-veined, the midvein slightly impressed above, raised 
beneath, the secondary veins 2 or 3 to a side, spreading, obscure; inflorescence 
axillary near ends of branchlets, subfasciculate or short-racemose (rachis 
not more than 5 mm. long), 4 to 8 flowered; flowers pilose in all parts with 
spreading yellowish hairs about 0.5 mm. long; pedicels rugose, 5 to 8 mm, long, 
circumscribed at base by a few ovate bracts 2 to 3 mm. long, bibracteolate 
near base, obscurely articulate with calyx; calyx tube rugose, campanulate, 
2 to 2.5 mm. long, 2.5 to 3 mm. In diameter at anthesis; limb 2.5 to 3 mm. long 
including lobes, the lobes ovate, apiculate, 1 to 1.5 mm. long, 2.5 mm. across; 
corolla thin-car nose, 15 to 16 mm. long, about 4 mm. in diameter, 5 or 6 lobed, 
the lobes about 2 mm. long; stamens 9 to 10 mm. long; filaments castaneous, 
submembranous, about 4 mm. long, firmly connate in a tube, densely pilose at 
distal margins with hairs up to 0.5 mm. long, continued into slender con- 
nectives; anther sacs nearly smooth, about 4 mm. long; tubules flexible, 4 mm. 
long; stigma peltate. 
Type locality: Chachapoyas, Department of Aniazonas, Peru. Type not 
cited. 
Distribution : Known only from the type locality. 
Peru. 
Amazonas: Chachapoyas, Mathewx (K), 3041 (K, In part, lype collection?). 
28. Thibaudia moricandi Dun.; DC. Prodr. 7:563. 1839. 
Shrub; branchlets subterete, brownish, short-pilose, becoming glabrous; 
petioles sub rugose, essentially glabrous, 2 to 4 mm. long; leaf blades lanceolate- 
oblong, 4 to 5 cm. long, 1 cm. broad, cuneate at base, acute at apex, crenate- 
serrate at margins (serrations 3 or 4 per centimeter), glabrous, pinnate- 
veined, the midvein slightly impressed above, prominent beneath, the secondary 
veins obscure, 3 or 4 to a side, spreading; inflorescence axillary near ends of 
branchlets, subfasciculate or short-racemose (rachis not more thau 5 mm. 
long), 3 to 6 flowered; pedicels subterete, 8 to 13 mm. long, spreading-pilose 
with pale hairs about 0.3 mm. long, circumscribed at base by a few broadly 
ovate bracts about 1 mm. long, deciduously bibracteolate near base, slightly 
swollen distally; calyx subrugose, pubescent as the pedicels, the tube short- 
cylindric, 2 mm. long and 3 mm. in diameter at anthesis, the limb about 3 mm 
long including lobes, the lobes 5, often more or less fused, acute, about 1.5 mm. 
long; corolla subeylindric, 13 to 14 mm. long, about 4 mm. in diameter, glabrous, 
the lobes about 1.5 mm. long; stamens 10 to 11 mm. long; filaments dark 
castaneous, 3 to 3,5 mm. long, firmly connate in a tube about 2 mm. long, densely 
pilose at margins distally with pale hairs 0.5 mm. long, continued into slender 
■ ft.- 
SMITH—AMERICAN SPECIES OP THIBAUDIEA® 431 
I 
connectives; anther sacs smooth, 4 mm. long, narrowed at base; tubules wide, 
5 to 5.5 mm. long, opening by oval clefts nearly half as long; stigma truncate. 
Type locality: Peru. Type collected by Mathews. 
Distribution ; Known only from the central Andes of northern Peru. 
Pert?. 
Ahazonas: Chachapoyas, Mathews (K, Y, type collection?), 3041 (K, in 
part). 
This species is allied to the preceding and possibly is not distinct from it, 
although In the specimens available the presence or absence of corolla pubescence 
is never in doubt. 
29. Thibaudia obovata A. C. Smith, sp. nov. 
Frutex; lamlnis oblongo-obovatis basi attenuatis apice subactitis margine sub- 
serratis plnnatinerviis; infloreseentia subfasciculata vel breviter racemosa parce 
pilosa glabrescente; calyce campanulato 5-lobato; corolla carnosa laze et decidue 
pilosa; staminibus aequalibus, fllamentis connatis superne pilosis, tubulls flexili- 
bus quam loculis paullo loogioribus. 
Shrub; branchlets subterete, glabrous; petioles subterete, glabrous, 2 to 3 mm. 
long; leaf blades coriaceous, oblong-obovate, 2.5 to 3.5 cm. long, 1,2 to 1.5 em. 
broad, attenuate at base, obtuse or subacute at apex, shallowly serrate at 
margins (serrations 3 or 4 per centimeter), glabrous, pinnated-veined, the mid- 
vein slightly impressed above, prominent beneath, the secondary veins arcuate, 
2 or 3 to a side, plane above, slightly raised beneath, the veinlets copiously 
reticulate, plane; inflorescence axillary, subfasciculate or short-racemose, 3 to 6 
flowered; rachis stout (about 1.5 mm. in diameter), 4 to 7 mm. long, pilose with 
pale spreading hairs about 0.4 mm. long; pedicels subterete, about 1 mm. in 
diameter, & to 12 mm. long, pilose as the rachis, each subtended by a deciduous 
ovate acute dilate bract let about 3 mm. long, bibracteolate near base; calyx 
tube subcylindric, 2 mm. long and 2.5 mm, in diameter at anthesis, pilose as the 
pedicel; limb about 2.5 mm. long including lobes, the lobes 1 mm. long and 
3 mm. across base, ciliate; corolla red, camose, pubescent (especially distally) 
with lax pale hairs about 0.5 mm. long, 12 to 15 mm. long, 3 to 4 mm. in diameter, 
the lobes triangular, about 2 mm. long; stamens about 11 mm. long; filaments 
connate in a firm ring, about 2.5 mm. long, glabrous below, densely pubescent at 
junction with anthers with brown hairs 0.2 mm. long; anther sacs slightly 
granular, 4 to 4.5 mm. long; tubules wide, flexible, 5.5 to 6 mm. long; stigma 
truncate. 
Type in the Botanisches Museum, Berlin, collected between Tumbilla and San 
Carlos, Department of Amazonas, Peru, altitude 2,900 to 3,000 meters, June 26, 
1915, by A. Weberbauer (no. 7154). Duplicate at F. 
Distribution : Known only from the type collection. 
Somewhat intermediate between the preceding and the following species. In 
this whole group more material is needed before the relationships and limita- 
tions of the species can be definitely settled. The present plant is characterized 
by its obovate-oblong leaves, pilose calyces and pedicels, and corollas tomentose 
at the throat. 
30. Thibaudia angustifolia Hook. Icon. PI. 2: pi. 110. 1837. 
Eurygania angustifolia Klotzsch, Linnaea 24:26. 1851. 
Thibaudia tcebcrbaueri Hoer. Bot. Jahrb. Engier 42:313. 1609. 
Low shrub; branches and branchlets subrugose, cinereous or brownish, gla- 
brous ; petioles rugose, glabrous, 2 to 3 mm. long; leaf blades narrowly oblong, 
3.5 to 5.5 cm. long, 1.2 to 2 cm. broad, cuneate or attenuate at base, subacute 
at apex, serrate at margins (serrations 4 or 5 per centimeter), glabrous, pin- 
nate-veined, the midvein slightly impressed above, raised beneath, the sec- 
84377—32 9 
482 CONTRIBUTIONS FROM THE NATIONAL. HERBARIUM 
ondary veins about 3 to a aide, spreading, nearly plane, often obscure; in* 
florescence axillary near ends of branchlets, subfasciculate or short-racemose 
(racbis rarely 1 cm. long), 3 to 8 flowered, essentially glabrous in all parts; 
pedicels rugose, 5 to 10 mm. long, bracteate at base and blbracteolate near 
base with oblong sparsely flmbriate bractlets about 2 mm. long; calyx tube 
rugose, subcampanulate, about 2.5 mm. long and 3 mm. in diameter at 
anthesis; limb about 3 mm. long including lobes, the lobes ovate, apiculate, 
about 1.5 mm. long anrl 2.5 mm. broad; corolla subcylindric, subrugose, 13 to 
16 mm. long, about 4 mm. in diameter, the lobes about 1.5 mm. long; stamens 
about 11 mm. long; filaments dark castaneous, 2.5 mm. long, firmly connate 
in a tube, densely pilose distal!y with hairs up to 0.7 mm. long, continued into 
slender connectives; anther sacs smooth, 4,5 mm. long, continuing into wide 
flexible tubules about as long; stigma truncate. 
Type locality ; Bagasdn, near Chachapoyas, Department of Amazonas, Peru. 
Type collected by Ma thews (no. 1443). 
DiSTBiBuiToif: Central Andes of northern Peru, altitude 2,000 to 2,500 meters. 
Peru. 
Amazon as: BagasSn, near Cliachapoyas, Mat hews 1443 (K, type). Molino- 
pampa, east of Chachapoyas, Weberbauer 4339 (B, type of T. weber- 
baueri). 
31. Thibaudia urbaniana Hoer. Bot. Jahrb. Engier 42: 315. 1909. 
Shrub about 2 meters high; branches and branchlets terete, subrugose, vio- 
laceous; petioles rugose, glabrous, 4 to 0 mm. long; leaf blades ovate, 6 to 7 
cm. long, 3 to 4 cm. broad, attenuate at base, acute at apex, crenate serrate 
at margins (serrations about 3 per centimeter), glabrous, dull green above, 
brownish beneath, pinnate-veined, the secondary veins about 3 to a side, arcuate- 
ascending, with the midvein slightly impressed above, raised beneath, the vein- 
lets reticulate, plane, often obscure; inflorescence axillary, subfasciculate or 
short-racemose (rachis rarely more than 5 mm. long), 4 to 8 flowered, glabrous 
in all parts; pedicels rugose, 8 to 15 mm. long, bracteate at base and decidu- 
ously blbracteolate near base (bractlets oblong, about 1.5 mm. long), swollen 
distally; calyx coriaceous, subrugose, the tube campanulate, about 1.5 mm. 
long and 2.5 mm. in diameter at anthesis, the limb 2 to 2.5 mm. long including 
lobes, the lobes about 1 mm, long; corolla cylindric, rugose, tomentose within 
distally, about 16 mm. long and 4 mm. in diameter, the lobes oblong, about 
2.5 mm. long; stamens 10 mm. long; filaments nigrescent, 2.5 mm. long, 
firmly connate in a tube, distally pilose; anther sacs nearly smooth, 5.5 mm. 
long; tubules flexible, about 3 mm. long; stigma truncate. 
Type locality : Between Bagas&n and Almirante, east of Chachapoyas, De- 
partment of Amazonas, Peru, altitude 2,200 to 2,300 meters. Type collected 
by Weberbauer (no. 4449). 
Distribution : Known only from the type collection. 
Peru. 
Amazonas: East of Chachapoyas, Weberbauer 4449 {B, type). 
This species bears a very close superficial resemblance to the following, 
but has much larger flowers. 
32. Thibaudia harmsiana Hoer. Bot Jahrb. Engier 42: 314. 1909. 
•Low shrub; branches and branchlets terete, brownish, glabrous; petioles 
rugose, subterete, 2 to 4 mm. long, glabrous; leaf blades ovate or slightly 
obovate, 6 to 7 cm. long, 3 to 4.5 cm. broad, cuneate at base, acute at apex, 
crenate-serrate at margins (serrations about 4 per centimeter), glabrous, 
brownish, pinnate-veined, the secondary veins usually 2 per side, oriented near 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 433 
base, with the mid vein plane above, raised beneath, the veiniets reticulate, 
slightly raised beneath; inflorescence axillary, short-racemose, 10 to 15 flow- 
ered, essentially glabrous; rachis rugose, about 2 cm. long; pedicels striate, 10 
to 13 mm. long, deciduously bibracteolate near base (bractlets lanceolate, flm- 
briate-margined, about 2 mm. long), obscurely articulate with calyx; calyx 
tube coriaceous, campanulate or subglobose, about 2 mm. long and 2.5 mm. 
in diameter; limb about 1.5 mm. long, the lobes apiculate, about 2 mm. across; 
corolla carnose, 7 to 8 mm. long, 2.5 to 3 mm. in diameter, the lobes about 1 
mm. long, sparsely pilose within; stamens about 4.5 mm. long; filaments casta- 
neous, 1.5 mm. long, firmly connate in a tube, glabrous; anthers stramineous, 
about 3.5 mm. long, the tubules wide, about as long as the sacs, opening by 
wide clefts their entire length, the sacs densely pilose at base; stigma truncate. 
Type locality : Monzdn, Department of Hu&nuco, Peru, altitude 2,000 to 
2,500 meters. Type collected by Weberbauer (no. 3542). 
Distribution : Known only from the type collection. 
Peru. 
HtxAnuco : Monzfrn, Weberbauer 3542 (B, type). 
33. Thibaudia ovata (Hook, f.) Hoer. Bot. Jahrb. Engler 42:275. 1909. 
EurygaMa ovata Hook. f. Bot. Mag. Curtis 104: pi. 6398. 1878. 
Thibaudia graebneriana Hoer. Bot. Jahrb. Engler 43: 313. 1909. 
Low shrub about 1 meter high; branchlets subterete, glabrous, or decidu- 
ously puberulous, with deciduous cinereous bark; petioles subrugose, 2 to 4 
mm. long, glabrous, narrowly winged above; leaf blades coriaceous, ovate, 2 to 
5 cm. long, 0.8 to 2 cm. broad, cuneate at base, subacute or obtuse at apex, 
subentire at margins, glabrous, 5-pli-nerved, the secondary nerves oriented 
above base, approaching pinnate-veined, with the midnerve plane or slightly 
impressed above, raised beneath, the veiniets reticulate, nearly plane on both 
surfaces; inflorescence axillary, short-racemose, essentially glabrous in all 
parts, 3 to 8 flowered; rachis subrugose, 3 to 10 mm. long; pedicels striate, 
8 to 13 mm. long, each subtended by a lanceolate, acute, sparsely flmbriate 
bractlet about 3 mm. long, minutely bibracteolate ne&r base; calyx tube sub- 
cylindric or campanulate, about 2.5 mm. long and 3 mm. in diameter at 
anthesis; limb 2 to 3 mm. long including lobes, thin-margined, the lobes apicu- 
late, less than 1 mm. long; corolla cylindric, thin-carnose, 8 to 9 mm. long, 
about 4 mm. in diameter, densely pubescent within at apex with spreading 
hairs about 0.3 mm. long, the lobes about 1 mm. long; stamens about 6 mm. 
long; filaments casta neons, firmly connate In a tube 2 to 3.5 mm. long, glabrous 
or sparsely pilose distally; anthers yellow, the sacs smooth, 2.5 mm. long, 
sparsely pubescent at base with pale hairs about 0.3 mm. long; tubules flaring, 
about 2 mm. long; stigma peltate. 
Type locality : Peru. Type collected by Lobb. 
Distribution : Andes of central Peru, altitude 1,800 to 3,100 meters. 
Peru: (?) "Columbia," Lobb (K, type). 
JunIn: West of Palca, Weberbauer 2436 (B, type of T. graebneriana). 
Huacapistana, Killip <£ Smith 24244 (N, Y). Carpapata, KiUtp & 
Smith 24353 (N, Y). 
Concerning the type locality of this species, there is again to be mentioned 
the confusion surrounding the Lobb collection. The specimen at Kew is labeled 
" W. Lobb, Columbia, No. 1," but the original description places the type from 
the "Andes of Peru." The type of T. graebneriana has no marked points of 
difference from the other collections, although its leaves are somewhat smaller, 
a difference which may be owing to the higher locality altitude. 
434 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
34. TMbaudia spathulata A. C. Smith, sp. no v. 
Frutex humilis; laminls crasso-coriaceis obovntis basi attenuatis apice ob- 
tusis marglne subserratis 3 ad 5 pli-nerviis; inflcrescentia subfasciculata gla- 
bra; calycis tubo breviter cylindrico, limbo patulo 5-lobato; corolla cylindrica; 
stamlnibus aequalibua, fllamentis connatis glabris, nntheris basi pilosis, tubulis 
flexllibus quam loculis longioribus. 
Low shrub; young branclilets striate, mahogany-brown, glabrous; petioles 
subterete, stout (about 1.5 mm. in diameter), glabrous, 3 to 5 mm, long; leaf 
blades thick-coriaceous, obovate, 3.5 to 5 cm. long, 1.5 to 2.2 cm. broad, at- 
tenuate at base, obtuse or rounded at apex, shallowly and distantly serrate at 
margins, glabrous, 3 to 5 pli-nerved, the nerves oriented above base, nearly 
plane above, slightly raised beneath, the veinlets reticulate, obscure; inflores- 
cence axillary, subfasciculate, several-flowered; rachis very short (3 mm. long 
or less); pedicels subterete, essentially glabrous, about 0.6 mm. in diameter, 
swollen above, 6 to 10 mm. long, each subtended by an ovate dilate bract let 
about 2 mm. long, bibracteolatc near base; flowers glabrous; calyx tube short- 
cylindrlc, about 3.5 mm. long and 2.5 mm. in diameter at anthesis; limb 
spreading, about 4 mm. long including lobes, the lobes acute, 1.5 mm. long, 4 to 
5 mm. across base; corolla scarlet, cylindric (flaring a trifle at apex when 
mature), 10 to 12 mm. long, about 4 mm. in diameter, the lobes triangular, 
2 to 2.5 mm. long; stamens about 8 mm. long; filaments glabrous, nigrescent, 
connate in a tube, about 2.5 mm. long; anther sacs smooth, pilose at base (with 
a few pale lax hairs 0.2 to 0.5 mm. long), 2 to 2.5 mm. long; tubules wide, 
3.5 to 4 mm, long, opening by gaping introrse clefts their entire length; style 
stout (0.6 mm. in diameter), the stigma truncate. 
Type in the herbarium of the Field Museum of Natural History, no. 562,440, 
collected at Putis, Choimacota Valley, Department of Ayaeueho, Peru, alti- 
tude 3,300 meters, February 27 to March 12, 1926, by A. Weberbauer (no, 7530). 
Disteibuteon : Known only from the type collection. 
Well marked by its obovate or subspatulate leaves and thick carnose flowers. 
The anther sacs are unusually pilose at base. 
35. Thibaudia ovalifolia A. O. Smith, sp. nov. 
Frutex humilis; laminis oblong is vel obovato-oblongis breviter petiolatis basi 
cuneatis vel attenuatis apice subacutis margine subscrratis pinnatinerviis; 
inflorescentia breviter racemosa glabra; calyce ciimpanulato 5-lobato; corolla 
tenulter carnosa cylindrica; staminibus aequalibus, fllamentis connatis glabris, 
tubulis lntis quam loculis paullo brevioribus. 
Low shrub; branches gnarled, cinereous; branchlets subterete, rugose, brown- 
ish, glabrous; petioles rugose, 2 to 3 mm. long, glabrous; leaf blades oblong or 
obovate-oblong, 5 to 7 cm. long, 2 to 3.5 cm. broad, cuneate or attenuate at base, 
obtuse or subacute at apex, slightly re volute and crenate-serrate at margins 
(serrations about 3 per centimeter), glabrous, pinnate-veined, the secondary 
veins 2 or 3 to a side, oriented near base, ascending, with the mid vein slightly 
impressed above, prominent beneath, the veinlets usually obscure; inflorescence 
short-racemose, glabrous in all parts, 10 to 20 flowered; rachis rugose, subterete, 
1 to 1.5 cm. long; pedicels rugose, 12 to 18 mm. long, deciduously bibracteolate 
near base (bractlets lanceolate-oblong, acute, about 2.5 mm. long, sometimes 
glandular-margined), swollen distally; calyx rugose, coriaceous, the tube 
campanulate, 2 to 2.5 mm. long, 4 mm. in din meter at anthesis, the limb about 
3 mm, long, the lobes apiculate, minute, -.5 to 3 mm. across; corolla thin- 
carnose, short-cylindric, 10 to 11 mm. long, about 4 mm. in diameter, the lobes 
deltoid, 1.5 mm. long; stamens 7 mm. long; filaments dark castaneous, 2.5 mm. 
long, connate in a tube, glabrous, continued into slender connectives; anthers 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 435 
smooth, erect, about 5.5 mm. long, the tubules wide, slightly shorter than the 
sacs; stigma truncate. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected on 
Cuesta de Huanacabra, Department of Amazonas (?), Peru, by A. Ma thews 
(no. 883*). 
Distribution: Probably'limited to the Andes of northern Peru. 
Prau: Maclean (E). 
From the three preceding this species differs in its completely glabrous flowers 
and rugose calyx. The name "ovalifolia" was suggested by the collector but 
was never published. 
36. Thibaudla biflora (Poepp. & Endl.) Hoer. Bot. Jahrb. Engler 42:274. 
1909. 
Ceratostema biff ovum Poepp. & Endl. Nov. Gen. & Sp. 1:0. pi. 10. 1835. 
Eurygania biflora Benth. & Hook. Gen. PI. 8: 568. 1876. 
Slender shrub 2 to 3 meters high; branchlets subterete, brownish, densely 
puberulous with short spreading hairs about 0.2 mm. long, becoming cinereous 
and glabrous; petioles subterete, sparsely puberulous or glabrous, 1 to 2 mm. 
long; leaf blades ovate, 15 to 20 mm. long, 10 to 13 mm. broad, rounded at base 
and apex, entire at margins, essentially glabrous, obscurely 5-pli-nerved, the 
midnerve plane above, slightly raised beneath, the secondary nerves oriented 
near base, plane or slightly raised on both surfaces, the vein lets obscure; in- 
florescence axillary, 1 to 3 flowered, fasciculate; pedicels terete, 4 to 6 mm. long, 
pilose with spreading hairs about 0.3 mm. long, circumscribed at base by several 
imbricate oblong pilose bractlets about 2 mm. long; calyx tube short-cylindric, 
pilose as the pedicels, 2.5 mm, long and 3 mm. in diameter at an thesis; limb 
3 mm. long including lobes, the lobes apiculate, less than 1 mm. long; corolla 
subcylindrlc, 11 to 15 mm. long, about 2 5 mm. in diameter, sparsely pilose, the 
lobes oblong, 1 to 2 mm. long, densely pilose within; stamens 7 to 8 mm. long; 
filaments dark castaneous, connate in a tube about 2 mm. long, glabrous; anther 
sacs smooth, 2 to 3 mm. long; tubules wide, flexible, about 4 mm. long; fruit 
subspherical, up to 5 mm. in diameter, the calyx-limb decurrent. 
Type locality : Cerro de San Cristobal, near Cuchero, Peru. Type collected 
by Poeppig (no. 1350). 
Distribution: Andes of northern and central Peru, altitude 1,100 to 1,700 
meters. 
Peru : Cerro de San Cristobal, near Cuchero, Poeppig 1350 (B, type). 
San MaetIn : Guayrapurina, near Tarapoto, Spruce 4430 (K, Y). Cerro de 
Escalero, Vie 0700 (B, Go). 
JuNfN: Pichis Trail, Enefias, Killip & Smith 25686 (N, Y). 
A very distinct species, marked by its few-flowered inflorescences and rounded 
leaves. The plant from Junln was growing in an open sphagnum swamp; the 
others are said to have been epiphytic. 
37. Thlbaudia herrerae A. C. Smith, sp. nor. 
Frutex; laminls lanceolato-ovatis basl attenuates apice subacutis margine 
integerrimis 5-pli-nerviis; inflorescentia breviter racemosa, rhachidibus pedicel- 
lisque breviter pilosis, floribus glabris; calyce breviter cylindrico, limbo patulo 
5-lobato; corolla cylindrico-urceolata; staminibus aequalibus, fllamentis con- 
natis glabris, anther is basi setosis, tubulis quam loculis paullo longioribus. 
Shrub; branches terete, glabrous; branchlets striate, puberulous (hairs 0.2 
to 0.3 mm. long); petioles 2 to 3 mm. long, winged above, rugose, essentially 
glabrous; leaf blades coriaceous, lanceolate-ovate, 3.5 to 5 cm. long, 1 to 1.2 cm. 
broad, attenuate at base, obtuse or subacute at apex, entire at margins, glabrous, 
436 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
5-pii-nerved, the nerves nearly plane above, raised beneath, the vein lets reticu- 
late, obscure; inflorescence axillary near ends of branchlets, short-racemose, 
5 to 3 flowered; rachis striate, 5 to 8 cm. long, pilose with pale spreading hairs 
0.2 to 0.3 mm. long; pedicels rugose, about 0.6 mm. in diameter, 12 to 10 mm. 
long, pilose as the rachis, each subtended by an ovate ciliate bractlet 1.5 mm. 
long, bibracteolate near base; calyx tube subcylindric, 2 mm. long and 1.5 mm. 
in diameter at anthesis, essentially glabrous; limb spreading, about 1.5 mm. long 
including lobes, the lobes apiculate, about 0.7 mm. long and 2 mm. across base; 
corolla red, car nose, essentially glabrous, cylindric-urceolate, about 9 mm. long 
and 3 mm. in diameter at center, the lobes triangular, about 1 mm. long; stamens 
about 7 mm. long; filaments glabrous, connate in a tube, about 3.5 mm. long; 
anther sacs slightly granular, setose at base, about 2.2 mm. long; tubules wide, 
about 2.6 mm. long; stigma truncate. 
Type in the U. S. National Herbarium, no. 1,283,197, collected at ForoAtoy, 
Santa Ana Valley, Department of Cuzco, Peru, altitude 2,000 to 2,800 meters, 
in 1927, by F. L. Herrera (no, 1384). 
Distribution : Known only from the type collection. 
This species is marked by very narrow leaves and a delicate inflorescence. 
38. Thibaudia regularis A. C. Smith, sp. nov. 
Frutex; lam in is coriaceis ovatis basi attenuatis apice acutis margine sub- 
integerrimis subtus dense pilosis 5-pli-nerviis; inflorescentia breviter racemosa 
ubique praeter corollas dense et deeidue pilosa; calycis tubo subcylindrico, 
limbo suberecto tubuin subaequante; corolla cylindrica glabra; staminibus 
aequalibus, filament is tenuibus connatls, antheris basi parce setosis, tubulin 
quam loculls paullo brevioribus. 
Shrub 1 to 2 meters high; branchlets subterete, puberulous (hairs about 0.2 
mm. long) ; petioles 1 to 2 mm. long, winged to base, pilose; leaf blades cori- 
aceous, ovate, 4 to 5 cm. long, 1.5 to 2.5 cm. broad, attenuate at base, acute at 
apex, entire or shaliowly crenate at margins, essentially glabrous above, densely 
pilose beneath (hairs pale, spreading, about 0.5 mm. long, 10 to 20 per square 
mm.), 5-pli-nerved, the nerves oriented near base, plane above, slightly raised 
beneath, the veinlets reticulate, obscure; inflorescence axillary, abort-racemose, 
6 to 8 flowered, all parts except corollas densely and regularly pilose with pale 
hairs about 0.5 mm. long when young, glabrous when mature; rachis stria te, 
about 1 mm. in diameter, about 1 cm. long; pedicels subterete, about 0.6 mm. 
in diameter, 10 to 18 mm. long, each subtended by an ovate-oblong bractlet 
about 2 mm. long, bibracteolate near base; calyx tube subcylindric, 3 mm. 
long and 3 mm. in diameter at anthesis; limb 2.5 to 3 mm. long including lobes, 
the lobes 1 mm. long, about 2 mm. across base; corolla red, glabrous (or pilose 
within at apex), 11 to 13 mm. long, 3 to 4 mm. in diameter, the lobes triangular, 
1.5 mm. long; stamens about 7.5 mm. long; filaments thin, glabrous, connate in a 
tube, about 3.5 mm. long; anther sacs smooth, sparsely setose at base, about 
3 mm. long; tubules wide, about 2 mm. long; stigma peltate. 
Type in the herbarium of the Field Museum of Natural History, no. 580,234, 
collected at Machupicchu, Valle de San Miguel, Department of Cuzco, Peru, 
altitude 2,200 to 2,400 meters, July 20, 1928, by F. L. Herrera (no. 2004). 
Duplicate at T. 
Distribution : Known only from the type collection. 
The unusually soft and fine pubescence of the leaves and young flowers 
distinguishes this species from its allies. 
Explanation of Plate 13.—Thibaudia regularis, from photograph of type sheet. About 
one-half natural size. 
SMITH—AMERICAN SPBCIES OF TH IBATJDIEAE 437 
39. Thibaudia boliviensis (Kuntze) Hoer. Bot. Jahrb. Engler 42:275. 1909. 
Hornemarinia bolivlensis Kuntze, Rev. Gen. PI. 3*: 191. 1898. 
Shrub; bra nchlets sub terete, brownish or cinereous, sparsely puberulous or 
glabrous; petioles rugose, glabrous, 3 to 4 mm. long; leaf blades coriaceous, 
ovate, 4 to & cm. long, 2 to 3.5 cm. broad, cuneate or subattenuate at bas&, 
obtuse at apex, entire and slightly revolute at margins, glabrous, 5 to 7 pli-nerved 
(or pinnate-veined, the veins oriented near base), the secondary nerves ascend- 
ing, with the midnerve nearly plane or slightly Impressed above, raised be- 
neath, the veinlets reticulate, plane or slightly raised on both surfaces; in- 
florescence axillary, subfasciculate or short-racemose (rachis leas than 1 cm. 
long), glabrous in all parts, 3 to 8 flowered; pedicels striate, S to 20 mm. long, 
each subtended by an oblong acute bractlet 2 mm. long, bibracteolate near base 
(bracelets sparsely fimbriate), slightly swollen distally; calyx tube short- 
cylindric, about 1.5 mm. long, 2 to 3 mm. In diameter at an thesis; limb 1 to 2 
mm. long including lobes, the lobes apiculate, less than 1 mm. long; corolla 
subcylindric, 7 to 11 mm. long, 3 to 4 wm. in diameter, slightly contracted above, 
the lobes obtuse, about 1.5 mm. long; stamens 5.5 to 6 mm. long; filaments cas- 
taneous, firmly connate in a tube, 2 to 3 mm. long, glabrous; anther sacs nearly 
smooth, sparsely pubescent at base with hairs about 0.2 mm. long, 2 to 2.5 mm. 
long; tubules wide, 1.5 to 2 mm. long; style stout, rugose, the stigma truncate. 
Type locality: Santa Rosa, Bolivia, altitude 3,000 meters. Type collected 
by Kuntze (April 3,1892). 
Distribution : Eastern Cordillera of northern Bolivia, altitude 1,400 to 3,000 
meters. 
Bolivia: Santa Rosa, Kuntze, April 3, 1892 (B, T, type). Calli6n, Pearce, in 
1864 <K). 
La Paz: Near Yungas, Rushy 2034 (Y). Cargadira, R, S. Williams 1581 
(N, Y). Tipuani, Buchtien 7433 (B, N, Y), 
40. Thibaudia melliflora R. & P. Fl. Peruv. Ohil. 4: pi. 887. 1802. 
Thibaudia mellifera R. & P.; St. Hil. ExpoSi Fam. Nat. 363. 1805. 
Eurygania multiflora Klotzseh, Linnaea 84:27. 1851. 
Thibaudia multiflora R. & P.; Klotzsch, Linnaea 24:27. 1851, as synonym. 
Vaocinium melliflorum F. Muell. Sel. PI. Indust. Cult. 249. 1876. 
Sparsely branched shrub about 1 meter high; young branchlets puberulous 
(hairs pale, up to 0.3 mm. long) ; petioles stout (2 mm. in diameter), 2 to 3 mm. 
long, winged to base, puberulous as the branchlets or glabrescent; leaf blades 
thick-coriaceous, ovate or slightly obovate, 4 to 7 cm. long, 2 to 3 cm. broad, 
attenuate at base, obtuse or sub acute at apex, entire at margins, glabrous 
or sparsely puberulous near base above, glabrous or pilose with scattered 
brown hairs beneath, pinnate-veined, the midvein impressed above, prominent 
beneath, the secondary veins usually oriented near base, arcuate-ascending, 
2 or 3 to a side, impressed or plane above, prominent beneath, the veinlets 
reticulate, obscure; inflorescence axillary, racemose, 7 to 15 flowered; rachis 
striate, 1 to 2 cm. long, densely pilose with pale spreading hairs about 0.3 mm. 
long; pedicels striate, about 0.8 mm. in diameter, 6 to 15 mm. long, pilose 
as the rachis, each subtended by a deciduous bractlet, deciduously bibracteolate 
near base, the bractlets oblong, cilia te, about 2.5 mm. long; calyx tube sub- 
cylindric, rugose, glabrous, 2.5 mm. long and 3.5 mm. in diameter at anthesls; 
limb 2 mm. long including lobes, the lobes short, apiculate, about 3 mm. 
across base; corolla scarlet, paler distally, glabrous, cylindric-urceolate, 9 to 
11 mm. long and 3 to 4 mm. in diameter when mature, the lobes about 1 mm. 
long; stamens about 8 mm. long; filaments glabrous, connate in a tube, 
438 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
about 3.5 mm, long; anther sacs slightly granular, incurved and sparsely 
setose at base, 3 to 4 mm. long; tubules wide, about 2.8 mm. long; stigma 
truncate. 
Type locality- : Department of HufLnuco, Peru. Type collected by Ruiz and 
Pavon. 
Distribution : Andes of central Peru, altitude 2,000 to 3,000 meters. 
Peru: (?) "Columbia," Lobb (K). 
HuAnuco: Pillao, Pearce 126 (K). Mito, Macbride & Featherstone 1402 (F). 
The only previous adequate description of this plant is from Dunal.** Local 
names: " Puechnto sumacmisqui," " pucosato." The fruit is reported as edible. 
DOUBTFUL SPECIES1' 
Thibaudia a bdisi aefoli a H. B. K. Nov. Gen. & Sp. 3:274. 1818. 
Type locality : Near Fusagasugft, Department of Cundlnamarca, Colombia. 
Type collected by Humboldt and Bonpland. 
I have not seen any specimen answering to the description of this species. 
Hoerold questions its place in the genus. The type has not been available to me. 
Thibaudia caulialata R & P. 
See notes at end of Cavendishia. 
Thibaudia cerander Dun.; DC. Prodr. 7: 565. 1839, 
Type locality : Not given. 
The description of this plant is so incomplete that its affinities can not be 
guessed. Dunal places it in this genus with doubt. 
Thibaudia crenulata Itemy, Ann. Sel. Nat. III. Bot. 8: 234. 1847. 
Typb locality : Chupi, Yungae, Bolivia. Type collected by D'Orbigny. 
I have seen no specimens which match the description. It may be allied to 
T. bolivien&is or possibly equal to it. 
Thibaudia diphylla Dun ; DC. Prodr. 7:562. 1839. 
Type locality : Huasa Huasi and Paleo, Peru. Type collected by Dombey. 
Probably this incompletely described species is related to T. angustifolla and 
its allies. 
Thibaudia jussiaei Dun,; DC. Prodr. 7:565. 1839. 
Type locality: Peru. Type collected by Joseph de Jussieu. 
Like the preceding, the description is too incomplete to permit placing this 
species. 
Thibaudia mabtii Meissn. 
See notes at end of Cavetidixhia. 
Thibaudia ocanknsis Linden, Cat no. 6:4. 1851. 
Descriptions of this " species " and of the two others mentioned in the same 
publication are not available to me. Probably they are simply listed and are 
to be considered nomina nuda. 
Thibaudia schhmiana Linden, Cat. no. 6: 4. 1851. 
See under T. ocanensi*, above. 
Thibaudia serrata Dun.; DC. Prodr. 7: 563. 1839. 
Type locality : Vicinity of Chachapoyas, Department of Amazonas, Peru. 
Type not cited. 
" DC. Prodr. 7 : 561. 1839. 
"I have not listed Asiatic species originally described under Thibaudia, which 
have since been transferred to their proper genera. 
SMITH AMERICAN SPECIES OP THIBATTDIEAE 439 
Possibly this description refers to one of the Ma thews collections, such as 
T. moricandi, but it is too incomplete to be considered. 
Thibaudxa tetbagona Linden, Gat. no. 6:4. 1851. 
Bee under T. ocanensis, above. 
EXCLUDES SPECIES 
T HiB AUDI A dohin gen s is Urban, Symb. Antill. 7:319. 1912. 
Like the following, this species appears to me to belong to the tribe 
Vaccinieae. Its correct combination must, however, await further study of 
the genera there included. 
Thibatjdia kbtjoii Urb. & Hoer,; Urban, Symb. Antill. 5:454. 1908. 
The several specimens of this species which I have seen, including a sheet 
of thle type collection, incline me to believe it a species of the tribe Euvacclnieae 
rather than Thibaudieae, although at present its proper generic reference is 
uncertain. 
TmBAtTMA lattfolia Griseb. Fl. Brit. W. Ind. 143. 1884. 
This species was transferred to Vaocinium by Bentham and Hooker," but by 
Hoer<old is again placed in Thibaudia. It appears to me to be a true Vaccinium. 
Thibatjdia Mexican a Mart. & Gal. Bull. Acad. Sci. Brux. 9 1: 530. 1842. 
Tyte locality: Chinantla, State of Oaxaca, Mexico, altitude about 1,200 
meters. Type collected by Galeotti (no. 1813). 
From the description of this species, of which I have not seen the type, I 
conclude that it belongs to Cavendishia. It may be related to Cavendishia 
laurifolia or Cavendishia crassifolia, or identical with one or the other. 
Thibaudia subcbenulata (Klotzsch) Hoer. Bot. Jahrb. Engler 42:275. 1909. 
Vacoinium subcrcnulatum Klotzsch; Schomb. Versuch Fauna & Fl. Br. Guian. 
1088. 1848, nomen. 
Ewrygania suierenulata Niedenzu, Bot. Jahrb, Engler 11:207. 1890. 
There has been no formal description of this species. The type is without 
flowers and I suspect it belongs to the tribe Euvacclnieae rather than Thibau- 
dieae. 
15. THEHISTOCLESIA Klotzsch, Llnnaea 24:41. 1851 
Calyx tube continuous with pedicel, obconical or short cylindric, narrowly 
5-winged to sinuses; limb erecto-patent, 5-lobed, the lobes triangular, subacute; 
corolla subcylindric, 5-lobed, the lobes triangular, subacute; stamens 10, alter- 
nately unequal or subequal, more than half as long as corolla; filaments sub- 
membranous, slender, distinct, alternately unequal or subequal, attached to the 
anther dorsally near its base; anthers membranous, the sacs smooth, the tubules 
slightly longer than the sacs (rarely more than twice as long), opening by short 
introrse clefts; style filiform, about as long as corolla. 
Slender shrubs, usually epiphytic, with subcorlaceous, alternate, predomi- 
nantly subcordate-based, obscurely nerved, petioled leaves; inflorescence axillary, 
short-racemose; flowers pedicelled, several to an inflorescence; pedicels sub- 
tended by small bracts, deciduously bibracteolate. 
Distribution : Andes of Venezuela to Peru. Six species are known. 
This genus is distinguished from Thibaudia by its slender habit, small leaves, 
and often slightly dimorphic stamens. T. pendula Klotzsch Is the type species. 
"Gen. PI. 8:575. 1876, 
440 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
KEY TO THE SPECIES 
Corolla essentially glabrous (often tufted-setose at apex). 
Rachls about 2 cm. long, circumscribed at base by bracts 2 to 4 mm. in length; 
filaments conspicuously of two lengths (difference about 1 mm.) ; anthers 
not more than 4.5 num. long  1. T. vegasana. 
Rachls seldom over 1 cm. long, circumscribed at base by bracts less than 2 mm. 
long; filaments of one length or inconspicuously of two lengths (difference 
not more than 0.5 mm.); anthers at least 5.5 mm. long. 
Leaf base subcordate or rounded; lower surface of leaves glabrous or soft- 
pilose ; pedicels about 10 mm. long or more. 
Calyx broader than long; pedicels and rachls pilose (Venezuela). 
2. T. pendula. 
Calyx longer than broad; pedicels and rachls glabrous or essentially so 
(western Colombia and northern Ecuador) 3. T. dependens. 
Leaf base cuneate; lower surface of leaves hispid with stiff hairs; pedicels 
5 to 8 mm. long (Peru) 4. T. peruviana. 
Corolla hispid-pilose, the hairs about 1 mm. long. 
Anthers 6.5 mm. long; filaments glabrous 5. T. hirsuta. 
Anthers 4 mm. long; filaments pubescent, the hairs up to 1 mm. long. 
6. T. compacts. 
1. Themistoclesia vegasana A. C. Smith, sp. no v. 
Frutex pulcherrimus; rarnis elongatis subscandentibus decidue pilosis; 
laminis ovatis vel ovato-oblongis basi late cuneatis vel truncatis apice longe 
acuminatis decidue pilosis obscure 5-nerviis; influrescentia racemosa inultiflora 
ubique praeter corollas breve pilosa; calyce obprismatico anguste 5-alato; 
corolla subcylindrica apice breviter setosa; filament is distinctly alternatim 
inaequallbus, antheris subuequallbus, tubulls quam loculis duplo longloribus. 
Shrub or low tree with elongate subscandent branches; branchlets striate, 
densely pilose with stiffly spreading hairs up to 0.8 mm. long, becoming glabrous; 
petioles slender, 1 to 2 mm. long, pubescent as the branchlets; leaf blades thin- 
coriaceous, ovate or oblong-ovate, 2 to 4 cm. long, 1 to 1.5 cm. broad, broadly 
cuneate or truncate at base, long-acuminate at apex, entire and slightly revolute 
at margins, sparsely pilose above with brownish hairs about 0.3 mm. long, pilose 
beneath on midnerve, becoming glabrous on both surfaces, obscurely 5-pll- 
nerved, the midnerve impressed above, prominent beneath, the secondary nerves 
oriented near base, nearly plane on both surfaces; inflorescence axillary, race- 
mose, 10 to 20 flowered; raehis slender, striate, 2 to 3 cm. long, densely 
pilose with spreading pale-brown hairs up to 0.7 mm. long, circumscribed at 
base by numerous imbricate oblong acute bracts up to 4 mm. long; pedicels 
slender, pubescent as the raehis, 7 to 10 mm. long, each subtended by an oblong 
deciduous bract, deciduously bracteolate near base (bractlets fimbriate, lance- 
olate, about 2 mm. long); calyx pilose as the pedicels, obprismatic, winged to 
the sinuses, the tube 2.5 to 3 mm. long and about 2 mm. in diameter at summit 
at anthesis, the limb about 1.5 mm. long including lobes, the lobes apiculate, 
less than 1 mm. long, the sinuses rounded; corolla thin, subcylindric, 7 to 9 
mm. long, glabrous proximally, short-setose at apex, about 3 mm. in diameter, 
the lobes obtuse, about 1 mm. long; stamens alternately unequal, about 7 mm. 
and 8 mm. long, respectively; filaments free or slightly coherent at base, 
slender, glabrous, about 2.5 mm. and 3.5 mm, long, respectively; anther sacs 
1 to 1.5 mm. long; tubules wide, about 3 mm. long, opening by oval clefts about 
one-third their length; stigma truncate. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 441 
Type In the U. S. National Herbarium, no. 1,351,918, collected in mountains 
east Las Vegas, Department of Santander, Colombia, altitude 3,200 to 3,300 
metefs, December 21, 1926, by E. P. Kiilip and A. C. Smith (no. 16794). Dupli- 
cate at Y. 
DISTRIBUTION: Known only from the type locality in the Eastern Cordillera 
of Colombia, altitude 2,600 to 3,300 meters. 
COLOMBIA. 
Santander: Las Vegas, Kiilip d Smith 15880 (N, Y). 
A beautiful species with extraordinarily dense clusters of delicate flowers, 
distinguished from its allies by its comparatively elongate rachis, Its larger 
bracth, its conspicuously dimorphic filaments, and Its small anthers. 
Explanation or Plate 14.—Themistoclesia vegasana, from photograph of type sheet. 
About one-half natural size. 
2. Themistoclesia pendula Klotzsch, Linnaea 24:42. 1851. 
Bpiacopkt pendula Moritz; Klotzsch, Linnaea 24:42. 1851, as synonym. 
Themistoclesia Kumboldtiana, Niedenzu, Bot. Jahrb. Engler 11:211. 1889. 
Macleania humboldtiana Klotzsch; Niedenzu, Bot. Jahrb. Engler 11:211. 
1889, as synonym. 
Shrub with pendulous branches, usually epiphytic; branchlets subcylindric, 
rather densely hispid with spreading brown hairs up to 1.3 mm. long, 
becoming glabrous and cinereous; petioles slender, pubescent as the branchlets, 
1 to 6 mm, long; leaf blades coriaceous, ovate or oblong-ovate, 3 to 6 cm. long, 
1.2 to 2.5 cm. broad, truncate or subcordate at base, caudate-acuminate at 
apex, entire and slightly revolute at margins, sparsely pilose on both surfaces 
when young, retaining pubescence on nerves but otherwise becoming glabrous, 
obscurely 5-pli-nerved, the midnerve strongly impressed above, prominent be- 
neath, the secondary nerves oriented near base, nearly plane on both surfaces, 
the veinlets reticulate, obscure; inflorescence axillary, short-racemose, 3 to 10 
flowered; rachis slender, subterete, densely pubescent with pale brown spreading 
hairs up to 1 mm. long, 1 to 2 mm. long, circumscribed at base by a few 
imbricate oblong fimbriate bracts 1 to 2 mm. long; pedicels slender, pubescent 
as the rachis, 8 to 12 mm. long, each subtended by an oblong fimbriate bract- 
let about 2 mm. long, deciduously bibracteolate at middle; calyx pubescent as 
the pedicels, becoming subglabrous, obprismatic, the tube about 2 mm. long 
and 2.5 mm. in diameter at an thesis, the limb membranous, spreading, 2 to 
2.5 mm. long including lobes, the lobes apiculate, less than 1 mm. long, the 
sinuses rounded; corolla subcylindric, 9 to 10 mm. long, glabrous proximally, 
short-setose at apex, about 3.5 mm. in diameter, slightly contracted above, the 
lobes acute, about 1 mm. long; stamens subequal or slightly alternately unequal, 
7 to 7.5 mm. long; filaments castaneous, about 2 mm. long, glabrous; anther 
sacs about 2 mm. long; tubules flexible, about 4 mm. long, opening by oval 
clefts about 1 mm. long; stitfma truncate; young fruit subcylindric, 4 to 5 mm. 
in diameter, surmounted by the wide-spreading calyx limb. 
Type looajjty : Colonia Tovar, State of Aragua, Venezuela. Type collected 
by Moritz (no. 1662). 
DISTRIBUTION: Andes of northeastern Venezuela, altitude 1,800 to 2,500 
meters. 
Venezuela: Karsten (B, type of T, humboldtiand) ; Moritz 1340 (B). 
Sucre: Cerro de Turumiquire, Tate 214 (N), 215 (N). 
Federal District: Apretadero, near Caracas, Jahti 204 (N). 
Aragua: Colonia Tovar, Moritz 1682 (B, type, N) ; Fendler 733 (G, T); 
Pittier 9994 (N, Y); Allart 304 (N, Y). 
M&RIDA: Tabay, Qehriger 612 (N). 
442 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
The two specimens from the Cerro de Turumiquire differ slightly from typical 
material by their somewhat narrower leaves with subcuneate bases. 
T. humboldtiana is based on a sheet marked " Macteania humboldtiana Kl. & 
Karst.," a name published only in synonymy by Niedenzu. No data concerning 
the specimen are avuliable, but presumably it was collected by Karsten in 
Venezuela. There are no differences between it and the type of T. pendula. 
3. Themistoclesia dependens (Bentli.) A. C. Smith. 
Thibaudia dependens Bentli. IM. Hartw. 220. 1846. 
Themistoclesia lehinannii Hoer. Hot. Juhrb. Engler 42:332. 1909. 
Shrub; branch lots strinte, hispid with spreading pale-brown hairs about 1.5 
mm. long; petioles 1 to 1.5 mm. long, hispid aa the branchlets (hairs about 0.7 
mm. long) ; leaf blades coriaceous, ovate, 3 to 4 cm. long, about 1.5 cm. broad, 
subcordate or rounded at base, long-acuminate'at apex, entire at margins, essen- 
tially glabrous (sparsely hispid near base on midnerve and near margins 
above), obscurely 5-pIi-nerved, the midnerve impressed above, prominent 
beneath, the secondary nerves obscure, oriented near base; inflorescence short- 
racemose, 5 to 8 flowered; racliis slender, striate, glabrous, up to 1 cm. in length, 
circumscribed at base by numerous imbricate ovate acute ciliate-margined bract- 
lets up to 2 mm. long; pedicels slender (about 0.3 mm. In diameter), 10 to 20 mm. 
long, rugose, glabrous, each subtended by a deciduous lanceolate-oblong dilate 
bract let about 2 mm. long; calyx tube obconical, glabrous, rugose, about 4 mm. 
long and 4 mm. in diameter at summit; limb 2 mm. long including lobes, the 
lobes apiculate, less than 1 mm. long, 2.5 mm. across base; corolla glabrous 
(sometimes sparsely pilose at apex when young), cylindric, 10 to 11 mm. long, 
about 4 mm. In diameter near base, gradually narrowed to 2.5 mm. in diameter 
above, the lobes 1 to 1.5 mm. long, 1 mm. across base; stamens subdimorphic 
(filaments alternately slightly unequal), about 9 mm. long, the filaments about 
1.5 mm. and 2 mm. long, respectively, pale, glabrous, slender; anther sacs 
smooth, about 2.5 mm. long; tubules flexible, 5.5 to 0 mm. long, opening by 
introrse elongate pores about 2 mm. long. 
Type locality: Near I'itayo, Department of El Cauea, Colombia. Type col- 
lected by I-Iurtwcg (no. 1209). 
Distribution : Central Cordillera of Colombia to northern Ecuador, altitude 
2,500 to 3,500 meters. 
Colombia. 
ToLiMA: Ooudot (K). 
ArriTOQufA: Alto San JosC, Kalbreyer 1597 (B). 
El Cauca: P&ramo de Guanacas, Lehmann 5620 (B, type of T. lehmannii). 
P&ramo de Biiena Vista, Pittier 1180 (N); Pitayo, Hartweg 1209 (K, 
type). 
ECUADOR. 
Pichincha: Mount Corazdn, Sodiro 92/35 (B). 
4. Themistoclesia peruviana A. C. Smith, sp. no v. 
F rut ex humilis; raniulis petiolisque pilosis; laminis ovatis basi cuneatis 
apice longe acuminatis subtus hispldis 3 ad 5-pli-nerviis; inflorescentia breve 
racemosa ubique praeter corollas pilosa; calycis tubo obconico anguste 5-alato; 
corolla glabra apice pilosa; stamiuibus subaequalibus, fllamentis dlstinctis 
glabris, tubulis qnam loculis paullo longioribus. 
Low shrub; branchlets subterete, pilose with spreading brown hairs about 
1 mm. long, swollen at base of petioles; petioles about 2 mm. long, subrugose, 
pilose as the branch lets; leaf blades coriaceous, ovate, 2 to 3.5 cm. long, 1 to 
1.5 cm. broad, cuneate at base, long-acuminate at apex, entire at margins, es- 
SMITH—AMERICAN SPECIES OP THIBAUDIEAE 443 
sentlally glabrous above, hispid beneath (hairs 3 or 4 per square mm., stiff, 
about 1 mm. long), 3 to 5 pli-nerved, the nerves oriented slightly above base, 
the midnerve impressed above, prominent beneath, the secondary nerves im- 
pressed above, obscure beneath, the veinlets reticulate, obscure; inflorescence 
axillary, short-racemose, 3 to 6 flowered; rachis slender, striate, up to 1 cm. 
long, pilose with spreading delicate pale-brown hairs about 0.3 mm. long, cir- 
cumscribed at base by numerous imbricate ovate bractlets about 1 mm. long; 
pedicels slender (about 0.3 mm. in diameter), 5 to 8 mm. long, stria te, pubes- 
cent as the rachis, each subtended by an oblong ciliate bractlet about 1.3 mm. 
long; calyx tube obconical, narrowly 5-winged to sinuses, sparsely pilose (hairs 
like those of pedicel), about 4 mm. long and 3 mm. In diameter at summit; 
limb sparsely pilose, about 1.5 mm. long including lobes, the lobes apiculate, 
about 0.5 mm. long and 2 mm. ncross base; corolla essentially glabrous near 
base, sparsely pilose towards apex with stiff brown hairs up to 1 mm. long, 
cylindric, 9 to 10 mm. long, about 4 mm. in diameter near base, reduced above, 
the lobes acute, about 2 mm. long and 1 mm. across base; stamens subequal, 
7.5 mm. long, the filaments with a tendency to be alternately slightly unequal; 
filaments glabrous, pale, about 2 mm. long; anther sacs about 3 mm. long; 
tubules flexible, about 3.7 mm. long, opening by introrse distal clefts about 
half their length. 
Type in the herbarium of the Field Museum of Natural History, no. 536,005, 
collected in sphagnum at Villcabamba, on Bio Chiuchao, Department of 
Hufinuco, Peru, altitude about 1,850 meters, July 17 to 26, 1923, by J. F. 
Macbride (no. 4964). 
Distribution : Known only from the type collection. 
Distinctly marked from the northern species of the genus by its leaf shape, 
hispid pubescence, and short pedicels. 
5. Themistoclesia hirsuta A. C. Smith, sp. nov, 
Arbor parva; ramulis petiolisque setoso-pllosis; laminis ovatis basi rotundatls 
vel late cuneatis apice longe acuminatls utrinque pilosls glabrescentibus obscure 
3 ad 5 pli-nerviis; inflorescentia breviter racemosa ubique pilosa; calyce obprls- 
matico anguste 5-alato 5 lobato; corolla subcylindrica; fllamentis alternatim 
inaequallbus distinct is glabris, tubulis flexilibus quam loculis duplo longloribus. 
Tree 3 to 7 meters high with elongate branches; branchlets subterete, densely 
clothed with spreading setiforni brown hairs about 2 mm. long, becoming 
cinereous and subglabrous; petioles slender, 2 to 4 mm. long, pilose as the 
branchlets; leaf blades coriaceous, orate, about 4 cm. long and 1.5 cm. broad, 
rounded or broadly cuneate at base, long-acuminate at apex, entire and slightly 
reyolute at margins, pilose on both surfaces (more densely so beneath), with 
spreading brownish hairs up to 2 mm. long, becoming subglabrous with age, 
obscurely 3 to 5 pli-nerved, the midnerve impressed above, prominent beneath, 
the secondary nerves oriented near base, obscure; inflorescence axillary near 
ends of branchlets, short-racemose, 5 to 10 flowered; rachis, pedicels, and 
calyx pilose as the branchlets with hairs about 1 mm. long; rachis slender, 
1 to 2 mm. long, circumscribed at base by numerous imbricate oblong fimbrlate 
bracts about 4 mm. long; pedicels slender, striate, 7 to 10 mm. long, declduously 
blbracteolate near base; calyx obprismatic, narrowly wingetl to sinuses, the 
tube about 2.5 mm. long and 3 mm. in diameter at an thesis, the limb 1 to 1.0 
mm. long including lobes, the lobes apiculate, about 0.5 mm. long, the sinuses 
rounded; corolla subcylindric, sparsely hirsute with brownish hairs up to 1 mm. 
long, 9 to 11 mm. long, about 3 mm. in diameter, the lobes obtuse, about 1 mm. 
long; stamens alternately unequal, about 10 mm. and 11 mm. long, respectively 
(anthers approximately similar, filaments of 2 lengths); filaments castaneous, 
444 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
glabrous, about 4 mm. and 5 mm. long, respectively; anther sacs smooth, 2 mm. 
long; tubules flexible, 4 to 5 mm. long, opening by oval clefts about 1 mm. long; 
stigma truncate; disk cup-shaped, densely setose at base of style; young fruit 
obprlsmatic, up to 5 mm. in diameter, surmounted by the broad persistent 
calyx limb. 
Type in the U. S. National Herbarium, no. 1,355,102, collected between 
Pamplona and Toledo, crossing the divide between Rio La Teja (Maracaibo 
drainage) and Rio Mesme (Orinoco drainage), Department of Norte de San- 
tander, Colombia, altitude 3,000 meters, February 28, 1927, by E. P, Killip 
and A. C. Smith (no. 19936). Duplicate at Y. 
Distribution : Known only from the type collection. 
This species and the following are sharply marked from others of the genus 
by their uniformly pilose corollas. They are distinguished from each other 
by staminal characters mentioned in the key and by a considerable difference 
in habit. 
Themistoclesia compacts A. C. Smith, sp. nov. 
Frutex compactus hum His; ramulis petiolisque pilosis glabrescentibus; lami- 
nis ovatis basl truncatis vel leviter subcordatis aplce acumiuatis utrinque 
setosis glabrescentibus obscure 5-pli-nerviis; inflorescentia racemosa ubique 
dense constanterque hispido-pilosa; calyce obprismatico anguste 5-alato; corolla 
subcylindrica; fllamentis alternatim inaequalibus distinctis pilosis, tubulis 
quam loculis dnplo longioribus. 
Low shrub, epiphytic (?) ; branchlets terete, brownish, laxly pilose with 
pale hairs up to 0.8 mm. long, becoming glabrous and cinereous; petioles slender, 
2 to 3 mm. long, pubescent as the branchlets, the hairs spreading; leaf blades 
coriaceous, ovate, 20 to 30 mm. long, 13 to 18 mm. broad, truncate or slightly 
subcordate at base, acuminate at apex, entire and slightly revolute at margins, 
setose on both surfaces, especially beneath, witli pale brown spreading hairs 
up to 0.8 mm. long, becoming essentially glabrous with age, obscurely 5-pli- 
nerved, the midnerve deeply impressed above, prominent beneath, the secondary 
nerves oriented at base, slightly impressed above, obscure beneath; inflores- 
cence axillary, racemose, 5 to 10 flowered, all parts (racliis, pedicels, calyces, 
and corollas) densely and persistently hispid-pilose with pale brown hairs about 
0.8 mm. long; rachis slender, 1 to 2,5 cm. long, circumscribed at base by sev- 
eral oblong flmbrlate bracts 2 to 3 mm. long; pedicels striate, 5 to 7 mm, 
long, each subtended by a small bractlet and deciduously bibracteolate at 
middle; calyx tube obprlsmatic, narrowly winged to sinuses, about 3 mm. long 
and 2.5 mm. in diameter at an thesis; limb suberect, about 1.2 mm. long in- 
cluding lobes, the lobes acute, less than 1 mm. long, the sinuses obtuse; corolla 
subcylindric, about 9 mm. long and 3 mm. in diameter, the lobes about 1 mm. 
long, reflexed at maturity; stamens alternately unequal, 6 mm. and 7 mm. 
long, respectively (anthers equal, filaments dimorphic) ; filaments 3 mm. and 
4 mm. long, respectively, pilose on all surfaces, especially distally, with pale 
spreading hairs up to 1 mm. long; anther sacs about 1.5 mm. long; tubules 
wide, flexible, 2.5 to 3 mm. long, opening by lntrurse pores less than 1 mm. 
long; stigma truncate; disk densely setose at base of style. 
Type in the herbarium of the ,New York Botanical Garden, collected In light 
forest at El Peiifin, southwest of Sibat£, Department of Cundinamarca, Colom- 
bia, altitude 2,900 to 3,000 meters, October 29, 1917, by F. W. Pennell (no. 2659). 
Distbibutton : Cundinamarca, in the Eastern Cordillera of Colombia. 
Colombia. 
Cundinamarca: PA ram o near Bogota, Ooudot (K), 
From the preceding species, T. compacia is distinguished by its shorter 
anthers, pubescent filaments, and compact habit. 
••• 
,+
 -t 
SMITH—AMERICAN" SPECIES OF THIBAUDIEAE 445 
16. BUSBY A Britton, Bull. Torrey Club 20:68. 1893 
Calyx tube continuous with pedicel, obconical, narrowly winged; limb sub- 
erect, Globed, the lobes elongate-triangular, acute; corolla cylindrie, 5-lobed, 
the lobes oblong, subacute; stamens 10, slightly shorter than corolla; filaments 
of two lengths, distinct, attached to the anther dorsally near its base; anthers 
of two lengths, the sacs faintly granular, the tubules slightly longer than the 
sacd, with introrse clefts more than half their length; style filiform, nearly 
as long as corolla. 
Ail epiphytic shrub with densely leafy branches, the young branchlets deeply 
ridged; leaves coriaceous, alternate, crowded (sometimes appearing whorled), 
short-petioled, linear-oblong, 1-nerved; stipules persistent, aristate from a 
swollen base; flowers solitary, axillary; pedicels slender, minutely bracteolate 
near base. 
Distribution : One species from northern Bolivia. 
This genus has flowers resembling those of Themistoclesia, lanceolate one- 
nerved leaves, and stipules such as those of certain species of Ceratostema. 
1. Busbya taxifolia Britton, Bull. Torrey Club 20:68. 1893. 
Anthopterus taxifolius Drude; Engl. & Prantl, Pflanzeufam. Nachtr. 41:270. 
1897. 
Epiphytic shrub; branchlets brown, subterete when old, when young deeply 
furrowed, the bark swollen at base of each petiole; stipules persistent, aristate 
frofr a swollen base, 2 mm. long, in pairs at the superior base of each petiole; 
petioles glabrous, less than 1 mm. long, canaliculate above; leaf blades coriace- 
ous and smooth in texture, linear-oblong, 20 to 30 mm. long, 2 mm. broad 
(rarely laterally fused in pairs, doubling the width), glabrous, cuneate at 
base, rounded or slightly emarginate at apex, entire and slightly thickened 
at margins, the mid vein depressed above, plane beneath, continuing t6 apex; 
flowers sparse, solitary in leaf axils; pedicels circumscribed at base by a 
few minute ovate ciliate-maigined bractlets about 0.6 mm. long, slender 
(0.2 mm. in diameter), 10 to 12 mm. long, deciduously bracteolate near base 
(bractlets oblong-ovate, acute, ciliate-margined, about 0.8 mm. long) j calyx 
tube about 3 mm. long and 1 mm. in diameter at summit at anthesis, rugose; 
limb about 2 mm. long including lobes, the lobes 1.5 mm. long, about 1.3 mm. 
across base, each with a prominent midnerve, the sinuses acute; corolla 
glabrous, 8 to 9 mm. long, 4 mm. in diameter near base, contracted to 2 mm. 
in diameter at throat, the lobes refiexed, about 1.5 mm. long and 1 mm, across 
base; stamens alternately unequal (about 7 mm. and 7.2 mm. long, respec- 
tively) ; filaments nigrescent, free, 1.5 mm. and 2.5 mm. long, respectively, 
about 0.4 mm. wide, pubescent at margins with ascending stiff brown hairs 
about 0.2 mm. long; anther sacs 3 mm. and 2.7 mm. long, respectively; tubules 
abojit 3.4 mm. long; style about 7.5 mm. long. 
tStpe locality : Yungas, Department of La Paz, Bolivia, altitude about 
1,250 meters. Type collected by Busby (no. 2692). 
Distribution : Known only from the type locality. 
Bolivia. 
La Paz: Yungas, Rushy 2692 (N, Y, type); Bang 624 (N, Y). 
An Isolated species, marked as noted in the generic discussion. Two other 
species have been referred to this genus on the basis of their stipules, here 
considered a secondary character. 
446 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
EXCLUDED SPECIES 
Rusbya peabcei Brltton, Bull. Torrey Club 20: 68. 1893. 
Anthopterus pearcei Drude; Engl. & Prantl, Pflanzenfam, Nachtr, 41: 270. 
1897. 
This species, of which I have seen only a fragment of the type, is probably 
best placed in some genus of Euvaccinieae, whether Vactinium or an ally can 
not definitely be said. 
Rusbya boliviana Britton, Mem. Torrey Club 4:215. 1895. 
Although this species was described without flowers, a single flower is present 
on a sheet of the type collection borrowed from the Gray Herbarium. This 
establishes the species unmistakably as near Vaccinium, but whether it is a 
distinct species or one previously described can not be decided at present. 
17. CAVENDISHIA Lindl. Bot. Keg. 21: sub pi. 1791. 1836 
(? Chupalon Adans. Fain. PI. 2:164, 1763) 
{Hocratesia Klotzscli, Linnaea 24:22. 1851) 
(Polyboea Klotzsch, Linnaea 24:24. 1851) 
{Proclesia Klotzsch, Linnaea 24: 32. 1851) 
Calyx tube articulate with pedicel, short cylindric or campanulate; limb erect 
or spreading, G lobed (rarely 3 or 4 lobed), the lobes triangular or ovate; corolla 
subcyliudric, 5-lobed, the lobes triangular or oblong; stamens 10, alternately 
unequal, nearly as long as corolla; filaments distinct or coherent at base, alter- 
nately unequal, attached to the anther dorsally near its base; anthers firm or 
membranous, the sacs smooth or slightly granular, alternately unequal, the 
tubules somewhat longer than the sacs (usually not more than twice as long), 
opening by elongate introrse clefts; style filiform, about as long as corolla, 
frequently exserted. 
Shrubs of various habit, often epiphytic, with coriaceous or subcoriaceous, 
alternate, pli-nerved or pinnate-veined, petioled leaves; inflorescence axillary or 
terminal, subfasciculate or racemose, bracteate at base and usually enveloped 
when young by large submembranous reddish bracts; flowers pedicelled, few to 
many to an inflorescence; pedicels deciduously bibracteolate. 
Distribution : Mountainous tropical continental America from southern Mex- 
ico to northern Bolivia and eastward to British Guiana. Seventy-three species 
are here described, and in addition there are four names which I am unable to 
place. 
This large genus is superficially distinguished by its large floral bracts; it is 
also characterized by dimorphic stamens, of which the filaments and anthers are 
both alternately unequal. With the exception of C, complect ens and C. quereme, 
no species are found in both Central and South America. To facilitate the use 
of keys and text, the Central American and South American species are treated 
in separate groups, the two species above mentioned being keyed under each. 
C, nobilis Lindl. is the type species. 
KEY TO CENTRAL AMERICAN SPECIES 
« 
(Including Mexico and Panama west of the Canal Zone) 
Leaf base strongly cordate, amplexlcaul; calyx lobes slightly imbricate. 
1. C. complectens. 
Leaf base slightly cordate or variously shaped, never amplexlcaul; calyx lobes 
not imbricate. 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 447 
Leaves small (less than 3.5 cm. long and 1.5 cm. broad), rounded at apex. 
Flowers solitary or in pairs, ebracteate; pedicels about 6 mm. long; corolla 
more than 18 mm. long; stamens at least 17 mm. long. 
2. C. pterocarpa. 
Flowers In clusters of 3 to 6, surrounded by large bracts; pedicels not 
exceeding 3 mm. in length; corolla 12 mm. long or less; stamens not ex- 
ceeding 11 nnn, in length  3. C. capitulata. 
Leaves larger (rarely less than 6 cm. long and 1.8 cm. broad), acuminate or 
subacute at apex (rounded in no. 4 only). 
Calyx limb erect, subcylindric, longer than the tube, this often constricted 
at its summit. 
Corolla pubescent, the hairs at least 0.3 mm. long; calyx lobes not 
callose-thickened. 
Leaves not more than 7 cm. long, rounded or obtuse or subacute at 
apex; calyx and pedicel pubescent 4. C. quercina. 
Leaves more than 8 cm. long, caudate-acuminate at apex; calyx and 
pedicel glabrous. 
Corolla less than 20 mm. long; stamens about 15 mm. long; branch- 
lets and leaves essentially glabrous (Guatemala), 
i 5. C. calllsta. 
Corolla 25 to 30 mm. long; stamens more than 20 mm. long; branch- 
lets and petioles pubescent; leaves usually somewhat pubescent 
(Costa Rica). 
Leaves oblong, about 3 times as long as broad (5 to 10 cm. broad), 
7-pli-nerved 6. C. longlflora. 
Leaves lanceolate, 4 or 5 times as long as broad (3.5 to 4.5 cm. 
broad), 5-pli-nerved 7. C. bullata. 
Corolla glabrous; calyx lobes callose-tbickened. 
Flowers in an elongate raceme, the rachis 6 to 10 cm. long; bracts 
small, much shorter than pedicels 8. C. melastomoides. 
Flowers in a shorter crowded raceme, the rachis usually less than 3 
cm. long; bracts longer than pedicels, often surrounding the in- 
florescence. 
Corolla 16 to 20 mm. long; anthers about 12 and 15 mm long re- 
spectively ; leaves 5 to 8 cm. long; calyx tube short apophysate, 
about 2 mm. long 9. C. endresiL 
Corolla 30 to 40 mm. long; anthers about 24 and 28 mm. long re- 
spectively ; leaves 9 to 13 cm. long; calyx tube somewhat elon- 
gate, 3 to 4 mm. long, rugose 10. C. wercklei. 
Calyx limb erecto-patent, usually shorter than the tube, this not constricted. 
Racemes long, the rachis 3 cm. long or more; bracts often shorter than 
the pedicels, not covering the inflorescence; corolla less than 15 mm. 
long; leaves rarely more than 12 cm. long. 
Flowers small (corolla 9 to 10 mm. long; stamens about 8 mm. long). 
Racemes 5 to 10 cm. long (rarely less) ; pedicels often up to 18 inm. 
in length; calyx and corolla with scattered stiff brown hairs 
(sometimes glabrous), the calyx lobes not margined (Guatemala 
and Mexico) 11. C. laurifolia. 
Racemes 3 to 5 cm. long (rarely more); pedicels usually less than 
12 mm. in length; calyx and corolla glabrous, the calyx lobes 
slightly callose-thickened at margin (Costa Rica). 
12. C. quereme. 
84377—32 10 
448 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Flowers comparatively large (corolla IS to 15 mm. long; stamens 
about 32 mm. long) 13. C, crassifolia. 
Racemes shorter, the rachis less than 3 cm. long; bracts longer than the 
pedicels, often enveloping the inflorescence; corolla more than 15 
mm. long; leaves often large. 
Corolla 15 to 16 mm. long (Mexico and Guatemala). 
Flowers essentially glabrous (calyx sometimes with scattered stiff 
brown hairs). 
Leaves 5 to 6 em, broad, usually 5-pIi-nerved 14. C. chiapensis. 
Leaves 0 to 8 cm. broad, 7-pli-nerved 15. C. latifolia. 
Flowers uniformly pale-pubescent (including pedicels, calyces, corol- 
las, and sometimes bracts)—!  16. C. guatemalensis. 
Corolla more than 19 nun. long (rarely 17 mm.) (Nicaragua, Costa 
Kica, and western Panama). 
Leaves oblong or oblong-obovate, averaging 2,2 times as long as 
broad, abruptly caudate-acuminate  17. C. smithii. 
Leaves oblong-lanceolate, averaging 3 times as long as broad, long- 
caudate-acuminate. 
Calyx puberalous; corolla sometimes puberulous. 
18. C, veraguensis, 
Calyx glabrous (frequently glandular) ; corolla glabrous. 
Leaves not punctate or sparsely so 19. C. costaricensis. 
Leaves regularly punctate on both surfaces. 20, C. hoffmannii. 
1. Cavendishia complectens Iiemsl. Biol, Centr. Amer. Bot. 2 : 272. 1881. 
Chupalon complectens Kuntze, Rev. Gen. PL 2:383. 1891. 
Pendent epiphytic shrub, the branches about 1 meter long; branchlets terete, 
brownish or cinereous, glabrous, frequently ilexuose; leaves practically sessile 
and strongly amplexicaul, frequently completely surrounding the branchlet, the 
petioles rugose, glabrous, stout, not more than 1 mm. long, the blades coriaceous, 
ovate or subrotund, 10 to 18 cm. long, 5 to 11 cm. broad, strongly cordate at 
base, obtuse or rounded at apex, entire and slightly re volute at margins, 
glabrous, pinnate-veined, the midvein impressed above, strongly prominent * 
beneath, the secondary veins G to 9 to a side, the basal several pairs spreading 
or reflexed, the upper pairs spreading, ascending, slightly raised above, promi- 
nent beneath, the veinlets copiously reticulate, raised on both surfaces; in- 
florescence terminal or axillary, racemose, glabrous in all parts, 10 to 30 
flowered; rachis terete, 3 to 10 cm. long; pedicels sub terete, 4 to 8 mm. long, 
each subtended by an oblong bract (bracts up to 20 mm. long and 15 mm. 
broad, ouneate and sessile at base, rounded and apiculale at apex, several- 
veined, subcorlaceous, completely covering the young flowers), deciduously 
bibraceteolate near bast*, slightly swollen distally; calyx cylindrlc, the tube 
about 3 nun. long and 4 mm. in diameter at an thesis, the limb erect, 4 to 5 mm. 
long including lobes, the lobes broadly ovate, thin-margined, about 4 mm. long 
and 4 mm. across, with overlapping margins, the sinuses acute; corolla cylindrlc, 
8 to & mm. long and about 4 mm. In diameter, contracted above, the lobes 
oblong, acute, 1.5 to 2 mm. long; stamens alternately slightly unequal, about 8 
mm. and 8.3 mm. long, respectively; filaments nigrescent, distinct, glabrous, 
2 mm. and 2.5 mm. long, respectively; anthers 0.5 mm. and 0.2 mm. long, 
respectively (short filaments belonging to lung anthers), the sacs nearly smooth, 
about 2.5 mm. long, the tubules wide, 4 mm. and 3.7 mm. long, respectively; 
stigma truncate. 
Type locautt: Costa Blca. Type collected by Endres (no. 257). 
■I 
! 
SMITH—AMERICAN SPECIES OF THDBATTDIEAE 449 
Distribution : Mountains of Costa Rica, altitude 1,200 to 2,000 meters; also 
Western Cordillera of Colombia and Ecuador. 
Costa Rica. 
Saw Josfi: La Palma, WerckU 11598 (N) ; PUtier 10170 (N); Brade 16672 
(N); Tonduz 7404 (12439 Herb. Nat. Cost.; F, G, N) ; W. W. & H. B 
Rowlee 255 (N) ; Standley 32918 (N), 32950 (N), 33205 (N), 38121 
(N), 38134 (N). San Jos£, AI faro 5843 (N). La Hondura, Standley 
& Valeria 51928 (N). 
Cabtago: La Estrella, Standley 39162 (N). Orosi, Standley 39814 (N). 
El Mufieco, south of Navarro, Standley 33906 (N) ; Standley & Torres 
51738 (N), 51772 (N). 
This Is an unmistakable species with amplexicaul leaves, evidently Quite 
common locally in Costa Rica. The above flower dimensions are average, but, 
of course, there are slight variations in one direction or the other. The stamens 
frequently appear isomorphic, but examination shows a slight alternate varia- 
tion in the dimensions of their parts. 
The South American specimens are mentioned In the following section of 
this treatment. 
2. Cavendishia pterocarpa (Donn. Smith) A. C. Smith. 
Th$mi&toclesia pterocarpa Donn. Smith, Bot. Gaz. 44:113. 1907. 
Epiphytic shrub about 1 meter high; branch lets subterete, minutely puberu- 
lous Or glabrous, dark brown, becoming cinereous; leaves crowded, the petioles 
about 2 jnm. long, narrowly winged, the blades coriaceous, obovate, 15 to 22 
mm. long, 8 to 12 mm. broad, attenuate at base, rounded or slightly emarginate 
at apex, entire, slightly revolute and thickened at margins, sparsely puberulous 
when young, becoming glabrous, obscurely pinnate-veined, the midveln slightly 
impressed above, prominent beneath, the secondary veins 2 to 4 to a side, 
oriented near base, ascending, slightly raised on both surfaces, the veinlots 
reticulate, obscure or slightly raised on both surfaces; inflorescence axillary, 
fasciculate, 1 to 2 flowered, essentially glabrous in all parts; pedicels subterete, 
5 to 8 mm. long, circumscribed at base by several oblong, minutely flmbriato 
bractlets about 1.5 mm. long, surmounted at apex by several minute deciduous 
cartilaginous teeth; calyx obprismatic, narrowly winged to sinuses, the tube 
about 2 mm. long and 2 mm. in diameter at antliesis, the limb suberect, 2 mm. 
long including lobes, the lobes triangular, less than 1 mm. long, the sinuses 
rounded; corolla narrowly cylindric, 20 to 22 mm. long, about 4 mm. In diameter 
near fyase, gradually contracted above, glabrous without or minutely puberulous 
when jyoung, sparsely tomentose within distally, the lobes triangular, subacute, 
about 1 mm. long; stamens alternately slightly unequal, about 17.5 mm. and 
18 mm. long, respectively (anthers similar, filaments dimorphic); filaments 
loosely coherent at base, dark castaneous, glabrous, 2.5 mm. and 3 mm. long, 
respectively; anther sacs nearly smooth, incurved at base, about 3 mm. long; 
tubules flexible, 12.5 to 13 mm. long; stigma peltate. 
TtpId locality : Mount Carjzia, Costa Rica, altitude 2,000 meters. Type col- 
lected by Pittier (no. 14031). 
Distribution : Mountains of Costa Rica, altitude 2,000 to 2,400 meters. 
Costa Rica: Mount Carizia, Pittier 14031 (N, type). 
HpBBBiA: Terba Buena, northeast of San Isidro, Standley A Valeric 49837 
(F, N). Cerros de Zurquf, northeast of San Isidro, Standley <6 
Valeria 50822 (N). 
450 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
In spite of its apparent lack of large bracts, there is no doubt that this species 
is a true Cavendishiet, easily distinguished from the following on characters 
mentioned in the key. 
3. Cavendishia capitulata Donn. Smith, Bot. Gaz. 25:147. 1898. 
Low epiphytic shrub about 1 meter high; branchlets sub terete or slightly 
angled, dark brown, glabrous; leaves numerous, the petioles rugose, 1 to 2 mm. 
long, the blades coriaceous, ovate-oblong or slightly obovate, 18 to 30 mm. long, 
7 to 12 mm. broad, cuneate at base, rounded at apex, entire and slightly revolute 
at margins, glabrous, obscurely 5-pIi-nerved, the midnerve impressed above, 
prominent beneath, the secondary nerves oriented near base, ascending, with the 
copious veinlets slightly raised on both surfaces; inflorescence axillary, fascicu- 
late (peduncle less than 3 mm. long), 3 to 7 flowered, glabrous in all parts, 
surrounded by several membranous imbricate bracts, the bracts obovate, up to 
2 em. long and 1 cm. broad, subattenuate at base, red or purple, rarely sparsely 
brown-pilose; pedicels subterete, 1 to 3 mm. long, deciduously bibracteolate neai 
base; calyx tube subcylindric, 2 to 3 mm. long and about 2 mm. in diameter at 
anthesis; limb suberect, 2 to 3 mm. long, including lobes, the lobes triangular, 
less than 1 mm. long, the sinuses rounded; corolla cylindric, 11 to 14 mm. long, 
3 to 4 mm. in diameter, the lobes triangular, about 1 mm. long; stamens sub- 
equal (alternate filaments and anthers compensatingly unequal) ; filaments 
dark castaneous, glabrous, connate in basal half, 2 mm. and 4 mm. long, respec- 
tively; anther sacs slightly granular, about 3 mm. long; tubules flexible, about 
7 mm. and 5.5 mm. long, respectively; stigma peltate. 
Type locai^ty: La Palma, Province of San Jos6, Costa Rica, altitude 1,500 
meters. Type collected by WerckKi (no. 11565). 
Distribution: Mountains of Costa Rica, altitude 600 to 1,700 meters. 
Costa Riga. 
Guanacasth: El Silencio, Standley A Valerio 44734 (N), 44822 (N). Los 
Ayotes, near Tilarfin, Standl&y 6 Valerio 45381 (F, N), 45434 (F, N), 
45623 (N). 
Alajttela: Frai janes, Standley & Torres 47623 <F, N). 
San Joe A: La Palma, WercJcM 11565 (N, type). La Himdura, Standley 
36360 (N), 36395 <N), 37664 (N), 37862 (N). 
Cartago: La Estrella, Standley 39375 (N), 39418 (N), 39538 (N), 39581 
(N). El Mufieco, south of Navarro, Standley 33507 (N). Orosi, 
Standley 39852 (N), 39634 (N). South of Cartago, Stork 363 (N). 
A very distinct species, related to the preceding. The flower dimensions 
stated are from the type specimen. Slightly larger flowers, especially as regards 
the dimensions of calyces, are often apparent. Frequently the calyx-limb is 
margined with a few short hairs. The shape and size of the bracts are also 
subject to variation. The above citations are an illustration of the extent to 
which Mr. P. C. Standley has broadened our knowledge of Central American 
plants by his excellent collections. 
4. Cavendishia quercina A. C. Smith, sp. no v. 
Frutex epiphyticus; ramulls decidue puberulentls; laminis oblongis vel 
ovato-oblongis basi cordatis vel snbeordatis apice obtusis 5 ad 7 pli-nerviis; 
inflorescentia racemosa multibracteata, bracteis oblongis sessilibus; floribus 
breviter pilosis; calyce breviter cylindrico apophysato, limbo erecto quam tubo 
longiore 5-lobato, lobis apiculatis; corolla cylindrica; sta minibus sub- 
aequalibus (81 a mentis antherisque compensanter inaequalibus), filamentis dis- 
tlnctis superne pilosis, tubulis quam loculis longioribus. 
SMITH—-AMERICAN SPECIES OF THIBAUDIEAE 451 
Epiphytic shrub, usually growing on Quercus; branchlets subterete, puberulous 
when young with gray hairs up to 0.5 mm. long, becoming glabrous; petioles 
subrugose, faintly puberulous or glabrous, 3 to 5 mm. long; leaf blades thick- 
coriaceous, oblong or ovate-oblong, 4 to 7 cm. long, 2 to 3.5 cm. broad, cordate 
or; subcordate at base, rounded or obtuse at apex, entire and strongly revolute 
at; margins, essentially glabrous (sparsely puberulous on nerves beneath when 
young), 5 to 7 pli nerved, the midnerve deeply impressed above, prominent 
beneath, obscurely pinnate-reined distally, the secondary veins oriented near 
base, spreading, slightly impressed above, prominent beneath, the veinlets 
reticulate, nearly plane on both surfaces; inflorescence terminal or axillary, 
racemose, 8 to 25 flowered; rachis subterete, 2 to 10 cm. long, puberulous with 
pale spreading hairs about 0.2 mm. long, becoming glabrous; pedicels striate, 
puberulous, each subtended by bright red membranous bracts (bracts oblong, 
up to 2 cm. long and 1 cm. broad, sessile and broad at base, subacute at apex), 
10; to 15 mm. long at maturity, minutely and deciduously bibracteolate near 
base, swollen distally; calyx tube short-cylindric, apophysate, 2 to 3 mm. 
long, about 3 mm. in diameter at an thesis, contracted above, pilose with pale 
spreading hairs about 0.2 mm. long; limb erect, 4 to 5 mm. long including 
lobes, the lobes triangular, 1.5 to 2 mm. long, each margined with 4 or 5 
small glands, the sinuses rounded; corolla cylindric, 15 to 18 mm. long, 
about 4 mm. in diameter, pale puberulous with hairs up to 0.3 mm long, 
the lobes triangular, obtuse, 1.5 mm. long; stamens subequal (filaments and 
anthers compensatingly unequal), about 14 mm. long; filaments dark 
castaneous, distinct, distally pilose with hairs about 0.2 mm. long, 3 mm. 
and 5.5 mm. long respectively; anther sacs slightly granular, 3 to 4 mm. long; 
tubules wide, 8.5 mm. and 5.5 mm. long respectively; stigma peltate. 
Type in the U. S. National Herbarium, no. 577,938, collected on summit of 
Cerro de Carizia, Costa Rica, altitude 1,900 meters, September, 1900, by H. 
Pittier (no. 14030). Duplicate at Y. 
DiSTMutmoN: Mountains of Costa Rica, altitude 1,600 to 2,500 meters. 
Costa Rica: Candelaria, Brade 2090 (B). 
San Jos£: Between Aserrf and Tarbaca, Standlcy 34145 (N). Finca La 
Cima, above Los Lotes, north of El Copey, Standley 42578 (N), 42677 
I (N), 42772 (N), 42792 (N). ZurquI, Standley d Valerio 48023 (N), 
48122 (N). Laguna de la Chonta, northeast of Santa Maria de Dota, 
Standley 42205 (N). 
The present species is without close relatives and is clearly distinguished 
from its allies by the pubescent pedicels and calyces and by its smaller leaves, 
wh%ch are obtuse at the apex. The racemes often elongate to 10 cm., retaining 
a brilliant bract at the base of each pedicel. As a rule the corollas are early 
deciduous. 
5. Cavendishia callista Donn. Smith, Bot. Gaz. AO: 5. pi. 2. 1895. 
Epiphytic shrub; branchlets terete, brownish or cinereous, sparsely setose 
with hairs about 1 mm. long or glabrous; petioles subrugose, setose or glabrous, 
5 to 12 mm. long; leaf blades coriaceous, oblong or ovate-oblong, truncate or 
subcordate at base, long-acuminate at apex, entire or slightly revolute at 
margins, glabrous, or sparsely setose on nerves beneath, 5 to 7 pli-nerved, the 
secondary nerves oriented near base, with the midnerve impressed above, 
strongly prominent beneath, the veinlets copiously reticulate, slightly raised on 
both surfaces; inflorescence terminal, racemose, 15 to 35 flowered; racemes 
solitary or in pairs, circumscribed at base by numerous membranous, oblong 
or Ovate, glabrous bracts up to 2 cm. long; rachis angled, stout, 5 to 10 cm. 
long, glabrous; pedicels striate, glabrous, 6 to 12 mm. long, each subtended by 
452 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
a bract similar to those at base of rachis, bibracteolate at middle with oblong 
bractlets about 5 mm. long, swollen distally; calyx tube sub rugose, short- 
cylindric, glabrous, 2 to 2.5 mm. long, about 3 mm. in diameter at anthesis, 
slightly contracted above; limb erect, glabrous, 6 to 6.5 mm. long including 
lobes, the lobes oblong, subacute, about 3.5 mm. long, sparsely glandular- 
margined or entire, the sinuses acute; corolla cylindric, about 18 mm. long, 
4 to 5 mm. in diameter, densely pubescent with persistent pale spreading 
hairs up to 0.4 mm. long, the lobes triangular, subacute, about 1.5 mm. long; 
stamens subequal (filaments and anthers compensatingly unequal), about 15 
mm. long; filaments castaneous, loosely coherent at base, glabrous or sparsely 
puberulous distally, 3 mm. and 7 mm. long, respectively; anther sacs slightly 
granular, 8.5 to 4 mm. long; tubules wide, flexible, 10 mm. and 6 mm. long, 
respectively; stigma truncate. 
Type locality: Between Cob&n and Samac, Department of Alta Verapaz, 
Guatemala, altitude about 1,400 meters. Type collected by von Tuerckheim 
(no. 941). 
Distribution : Guatemala, known only from the Department of Alta Verapaz, 
altitude 300 to 1,400 meters. 
Guatemala. 
Alta Verapaz: Between Cob&n and Samac, von Tuerckheim 941 (F, G, Nt 
type, Y). Cubilquitz, von Tuerckkeim 4119 (F, N), 7916 (F, G, N, Y). 
CobAn, von Tuerckheim II. 1795 (G, N, Y). Trece Aguas, near Senahu, 
Pittier 340 (N). Finca SepaculW, Cook & Griggs 418 (N), 617 (N). 
Chamfi, Johnson 202 (N). 
Evidently a common species in the region mentioned. This species and the 
two following are very hand some shrubs, readily distinguished from one 
another on the characters stated in the key. 
6. Cavendishia longiflora Donn. Smith, Bot. Guz. 37:420. 1904. 
Shrub (epiphytic?); branchlets subterete or angled, densely and regularly 
pubescent with brown or .cinereous, spreading hairs about 2 mm. long, becoming 
glabrous with age; petioles rugose, 4 to 11 mm. long, densely pilose as the 
branchlets; leaf blades coriaceous, broadly oblong, 10 to 23 cm. long, 4.5 to 9 
cm. broad, subcordate or truncate at base, caudate acuminate at apex (acumen 
about 2 cm. long on large leaves), entire and narrowly revolute at margins, 
glabrous above or puberulous on nerves, pilose beneath, especially on nerves, 
with stiff erect brown hairs about 1 mm. long, 7 to 9 pli-nerved, the secondary 
nerves oriented near base, with the midnerve impressed above, strongly prominent 
beneath, the veinlets copiously reticulate, slightly impressed or plane above, 
raised beneath; inflorescence terminal or axillary, racemose, 15 to 25 flowered, 
circumscribed at base by numerous papyraceous, imbricate, oblong or ovate, 
glabrous bracts up to 4 cm. long and 3 cm. broad; rachis sharply angled, 
glabrous, 6 to 10 cm. long; pedicels subrugose, 6 to 12 mm. long, each sub- 
tended by a bract similar to those at base of racemes (bracts frequently obovate, 
3 times as long as broad), glabrous, blbracteolate below middle with oblong 
lanceolate bractlets 4 to 5 mm. long; calyx tube rugose, glabrous, slightly 
npophysate at base, about 4 mm. long and 3.5 mm, in diameter at an thesis; 
limb erect, about 4 mm. long including lobes, glabrous, the lobes triangular, 
subacute, about 2 mm. long; corolla cylindric, 26 to 30 mm. long, about 5 
mm. in diameter, densely and persistently pubescent with pale brown 
ascending hairs up to 1 mm. long, the lobes triangular, obtuse, about 1.5 mm. 
long; stamens subequal (filaments and anthers compensatingly unequal), about 
26 mm. long; filaments dark castaneous, loosely coherent at base, glabrous or 
faintly puberulous distally, 3 mm. long and 6 to 7 mm. long, respectively; anther 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 453 
sacs nearly smooth, 8 to 9 mm. long; tubules wide, flexible, 17 mm. and 14 mm. 
long, respectively; stigma peltate. 
Typh locality : Alto de La Palma, Province of San Josg, Costa Rica, altitude 
1,700 meters. Type collected by Tonduz (no. 7391). 
Distribution : Known only from type locality, altitude 1,000 to 1,700 meters. 
Costa Rica. 
San Josfi: La Palma, Tonduz 7391 (12486 Herb. Nat. Cost.; B, F, G, N, 
type); Brade 61 (B); Standley 33089 (N). 
7. Cavendishia bullata Smith & Standl., sp. nov. 
I 
Frutex eplphyticus; ramulis petiolisque pubescentibus glabrescentibus; 
laminls bullatissimis oblongo-lanceolatis basi abrupte truncatis apiee caudato- 
acuminatis utrinque parce setosls 5 ad 7 pli-nervils; lnflorescentia racemosa 
multiflora basi bracteis oblongo-ovatis papyraceis imbricatis instructs.; calyce 
glapro, tubo rugoso, limbo erecto quam tubo longiore; corolla cylindrica dense 
coustanterque pubescente; fllamentis antherisque alternatim inaequalibus, flla- 
mentis dlstinctis glabris, tubulis quam loculis longioribua. 
Epiphytic shrub about 1 meter high; branchlets subterete, brownish, densely 
pubescent with pale brown setiform hairs about 2 nun. long, becoming glabrous 
with age; petioles subterete, 8 to 18 mm. long, densely pubescent as the branch- 
lets; leaf blades coriaceous, strongly bullate, oblong-lanceolate, 15 to 28 cm. 
long, 3.5 to 4.5 cm. broad, abruptly truncate at base, caudate-acuminate at 
apex, entire and re volute at margins, glabrous above or setose on veins (some- 
times sparsely setose on surface), setose on nerves beneath with hairs about 
1.3 mm. long (sometimes setose on surface, completely glabrous with age), 5 to 
7 pli-nervedt the nerves oriented from base or slightly above, with the midnerve 
deeply impressed above, very prominent beneath, the veinlets reticulate, slightly 
raised or plane on both surfaces; inflorescence terminal or axillary, racemose, 
30 to 40 flowered at maturity, circumscribed at base by numerous orange 
papyraceous imbricate oblong-ovate glabrous bracts up to 4 cm. long and 2 cm. 
broad; rachis stout (4 to 5 mm. in diameter), sharply angled, glabrous, 8 to 11 
cm. long at maturity; pedicels arranged on the rachis more or less spirally, 
striate, 8 to 12 mm. long, each subtended by a deciduous bract similar to those 
at base of racemes, bibracteolate near base with lanceolate bractlets 4 to 5 mm. 
long; calyx tube strongly rugose, the basal margin produced below articulation, 
glabrous, about 3 mm. long and 3 mm. in diameter at an thesis; limb erect, 
kllgjhtly flaring, about 5 mm. long including lobes, glabrous, the lobes triangular, 
subjacute, about 1.5 mm. long, narrowly membranous-margined; corolla cylindric, 
26 to 28 mm. long, about 5 mm. in diameter, densely and persistently pubescent 
with pale subtomentose hairs up to 1 mm. long, the lobes triangular, subacute, 
about 1 mm. long, deep red at margins (corolla otherwise orange-yellow); 
stamens subequal (filaments and anthers compensatingly unequal), about 22 
mm. long; filaments membranous, pale castaneous, loosely coherent at base, 
glabrous, 4 mm. and 9 mm. long respectively; anther sacs nearly smooth, 7 to 8 
mm. long; tubules wide, flexible, 12 mm. and 8 mm. long respectively, opening 
by clefts more than half their length; stigma truncate. 
Type in the herbarium of the Field Museum of Natural History, no. 598,143, 
collected at Naranjo, Costa Rica, altitude about 1,700 meters, March 5, 1926, by 
H. IE, Stork (no. 1789). 
Distribution: Mountains of Costa Rica, altitude 1,400 to 1,700 meters. 
Costa Rica. 
Cabtaqo : El Mufleco, on Rfo Navarro, Standley A Torres 51279 (N, Y). 
A striking species sharply distinguished from the preceding on its leaf shape. 
In the type specimen the leaves are nearly glabrous. The other collection cited 
454 CONTRIBUTIONS FROM THE NATIONAL, HERBARIUM 
has a leaf surface more or less densely hispid. In all other respects the two 
are'identieal, and this pubescence does not seem a specific character. 
8. Cavendishia melastomoides (Klotzsch) Hemsl. Biol. Centr. Arner. Bot. 2: 
273. 1881. 
Socratesia melastomoides Klotzsch, Linnnea 24:23. 1851. 
Cavendishia klotzschiana Niedenzu, Bot Jahrb. Engler 11:206. 1890. 
Cavendishia graebneriana Hoer. Bot. Jahrb. Engler 42: 324. 1909. 
Chupalon melastomoides Kuntze, Rev. Gen. PI. 2:383. 1891. 
Low epiphytic shrub; branchlets terete, brownish or cinereous, glabrous; 
petioles subterete, glabrous or sparsely puberal ous, 4 to 6 mm. long; leaf 
blades coriaceous, oblong or ovate-oblong, 4.5 to 8 cm. long and 1 to 3 cm. 
broad, cuneate at base, long-acuminate at apex, entire and narrowly revolute 
at margins, glabrous above, glabrous beneath or sparsely pilose with hairs 
of two types (stout brown appreased hairs about 0,2 mm. long and pale spread- 
ing slender hairs up to 0.5 mm. long), obscurely 3 to 5 pli-nerved, the mid- 
nerve impressed above, prominent beneath, the secondary nerves oriented near 
base, plane or slightly raised on both surfaces, the veinlets reticulate, slightly 
raised above, plane beneath; inflorescence terminal or axillary; racliis sub- 
terete, glabrous or with minute glandular hairs, 6 to 12 cm. long, not always 
sharply distinguished from the branchlets; pedicels subrugose, 10 to 20 mm. 
long, glabrous or with minute glandular hairs, 1 or 2 per centimeter of rachis, 
each subtended by a deciduous greenish papyraceous oblong bract about 1 
cm. long, bibracteolate near base with oblong bractlets 2 to 3 mm. long; calyx 
glabrous, broadly apophysate at base, the tube about 1.5 mm. long and 6 mm. 
across apophysis, the limb erect, flaring, 4.6 to 8 mm. long including lobes, 
the lobes triangular, subacute, about 1 mm. long, the sinuses rounded; corolla 
cylindric, 28 to 40 mm. long, 4 to 5 mm. in diameter, glabrous, viscid, the 
lobes triangular, obtuse, 1.5 mm. long, often reflexed at maturity; stamens 
subequal (filaments and anthers compensatlngly unequal), 26 to 35 mm. long; 
filaments castaneous, slender, slightly coherent at base, pale pubescent dls- 
tally with hairs up to 0.3 mm. long or subglabrous, 4 to 6 mm. and 10 to 11 
mm. long, respectively; anther sacs nearly smooth, 5 to 7 mm. long; tubules 
flexible, 17 to 24 mm. and 13 to 19 mm. long, respectively; stigma truncate. 
Type locality: Costa Rica. Type collected by Warszewicz. 
Distribution : Mountains of Costa Rica, altitude 1,500 to 2,000 meters. 
Costa. Rica: Warszewicz (B, type) ; \Verekl6 29 (B, type of C, yraebneriana), 
Estrella road, Stork 2569 (F). 
San Josfi: Las Nubes, Standley 38506 (N), 38741 (N). 
Cabtaqo: Santa Clara de Cartago, Maxon & Harvey 8197 (N). 
The name C. melastomoides must be retained for this plant rather than for 
the Colombian species (Thibaudia melastomoides H. B. K.), for which the 
name C. miconioides Is proposed in this treatment. The combination C. melas- 
tomoides was never formally applied to the Colombian plant until 1909 
(by Hoerold), whereas it was used In regard to the Costa Rican plant in 
1881. There is no need, therefore, for Niedenzu's name C. klotzschiana. 
The type of C. graebneriana has leaves considerably narrower than those of 
the type of C. melastomoides, but the specimens here cited show such inter- 
mediate variations in this respect that it can not be considered a specific 
difference. There is a good deal of variation in the flower dimensions of 
various specimens. Completely mature flowers seem to average 4 cm. in length. 
The proportions of flower parts, however, are very constant. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 455 
bro 
lea 
lavendishia endresii Hemsl. Biol. Centr. Amer. Bot. <2:273. 1881. 
'hupdlon endresii Kuntze, Rev. Gen. Pl. S: 388. 1891, 
'avendishia glu tinosa Hoer. Bot. Jahrb. Engler 42:321. 1909. 
iLow shrub, usually epiphytic; branchlets subterete or striate, slender, gla- 
jus, brownish or cinereous; petioles subterete, glabrous, 4 to 8 mm. long; 
blades ovate-oblong or lanceolate-oblong, 5 to 8.5 cm. long, 1.2 to 2.5 cm. 
brolad, cuneate at base, long-acuminate at apex, entire and slightly revolute at 
margins, glabrous, obscurely pinnate-veined, the midvein impressed or plane 
above, somewhat prominent beneath, the secondary veins 2 or 3 to a side, 
ori<snted near base, ascending, plane or slightly impressed above, slightly 
rallied beneath, the veinlets reticulate, plane or slightly raised on both sur- 
; inflorescence axillary near ends of branchlets, short-racemose, 3 to 0 
flowered, glabrous in all parts; rachis subterete, 0.5 to 2 cm. long; pedicels 
subterete, 7 to 14 mm. long, each subtended by a deciduous papyraceous ob- 
long bract up to 2 cm. long (the entire inflorescence more or less covered by 
similar imbricate bracts when young), deciduously bibracteolate near base 
with triangular bractlets less than 1 mm. long; calyx slightly viscid, apophy- 
at base, the tube 1.5 mm. long and 3 mm. in diameter at anthesls, the 
limlb erect, about 2 mm. long including lobes, the lobes somewhat thickened, 
triangular, apiculate, less than 1 mm. long, the sinuses rounded ; corolla cylln- 
dric, 15 to 17 mm. long, about 3.5 mm. in diameter, the lobes triangular, sub- 
acute, about 1 mm. long; stamens subequal (filaments and anthers compen- 
satlngly unequal), 14 to 14.5 mm. long; filaments membranaceous, distinct or 
looitely coherent at base, glabrous, 2.5 mm. and 4.5 mm. long respectively; 
anther sacs slightly granular, about 2.6 mm. long; tubules flexible, 10.5 mm. 
and 8.5 mm. long respectively; stigma truncate; young fruit subspherical, up 
to 5 mm. in diameter, surmounted by the persistent calyx limb. 
locality : Costa Rica. Type collected by Endres (no. 173). 
I^istbibutiok : Mountains of Costa Rica and western Panama, altitude 1,300 
to 2,000 meters. 
Costa Rica: Endres 173 (K, type). 
1
 San Jos£: La Palma and vicinity, Wcrckte 19 (B, type of C. glutinosa), 50 
(B); Brade 2101 (B) ; Stork 429 (N); Maxon & Harvey 7912 (N), 
I 8018 (N). La Hondura, Standley 36258 (N), 37022 (N). 
Panama. 
I CHntiQuf: Cerro de Lino, above El Boquete, Pittier 3036 (F, N). 
Tfhe present species is closely related to C. wercklei. The flower dimen- 
sions above stated are more or less average for the Costa Rican specimens. 
The specimens from Panama have slightly larger flowers, the corollas being 
2 cm. long and the stamens concomltantly large. 
10.1 Cavendishia wercklei Hoer. Bot. Jahrb. Engler 40:325. 1909. 
Shrub with elongate branches; branchlets subterete, glabrous, slender, brown- 
ish; petioles sub rugose, glabrous, 5 to 8 mm. long; leaf blades coriaceous, 
oblong or ovate-oblong, 9 to 13 cm. long, 2.5 to 6 cm. broad, truncate or sub- 
cur eate at base, caudate-acuminate at apex (acumen about 2 cm. long), entire 
and slightly revolute at margins, glabrous above, glabrous beneath or sparsely 
pilose with appressed nigrescent hairs about 0.2 mm. long, 5 to 7 pli-nerved, 
the! secondary nerves oriented near base, with the nildnerve slightly impressed 
abdve, prominent beneath, the veinlets copiously reticulate, slightly raised on 
botfi surfaces; inflorescence axillary or terminal, racemose, circumscribed at 
bade and completely covered, when young, by numerous imbricate membranous 
oblpng glabrous bracts up to 4 cm. long and 2.5 cm. broad, 5 to 12 flowered, 
glabrous in all parts; rachis angled, 1 to 2 cm. (up to 7 cm.?) long; pedicels 
456 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
t 
subterete, about 10 mm. long, each subtended by a deciduous bract similar to 
those at base of racemes, deciduously blbracteolate near base with ovate 
bractlets about 1 mm. long, slightly swollen dlstally; calyx tube strongly 
rugose, the base produced below the articulation, subcyllndric, 4 to 4.5 mm. 
long and 3 to 4 mm. in diameter at anthesls; limb erect, slightly flaring, about 
6 mm. long including lobes, the lobes triangular, about 1.5 mm. long, callose- 
tlpped; corolla cyllndrlc, membranous, 30 to 40 mm. long, 5 to 6 mm. in 
diameter, the lobes triangular, subacute, about 1 mm. long; stamens subequal 
(filaments and anthers compensatingly unequal), 28 to 29 mm. long; filaments 
castaneous proximally, nigrescent distally, distinct, puberulous when young 
and at margins with hairs up to 0.3 mm. long, 2 mm. and 7.5 mm. long, respec- 
tively ; anther sacs slightly granular, 8 to 10 mm. long; tubules wide, flexible, 
18 to 19 mm. and 14 to 15 mm. long, respectively; stigma truncate. 
Type locality : La Palrtia, Province of Sail Jos£, Costa Rica, altitude 1,700 
meters. Type collected by Werckld (no. 53). 
Distribution: Mountains of Costa Rica and western Panama, altitude 1,700 
to 2,300 meters. 
Costa Rica. 
San Jos6: La Palma, Werol*16 53 (B, type). 
Panama. 
ChiriquI : Between Alto de las Palmas and Cerro de la Horqueta, PUtier 
3206 (F, N) ; Maxon 5446 (N). 
Although the original description gives the length of the rachls as 7 cm., 
the type specimen is in such poor condition that in the above description I 
have used the Panama specimens as more illustrative of the plant's usual habit. 
The Panama specimens have, it is true, somewhat broader leaves and show 
slight differences in venation, but since they are Identical with the type in 
flower structure I believe them to be conspeciflc. In folinge this species is 
larger than the two preceding, to which it is closely allied. 
11. Cavendishia laurifolia (Klotzsch) Benth. & Hook. Gen. Pi. 2:570. 1876. 
Polyboea laurifolia Klotzsch, Liunaea 24:31. 1851. 
Chupalon l&urifolium Kuntze, Rev. Gen. PI. 2:383. 1891. 
Cavendishia tuerckhcimii Hoer. Bot. Jahrb. Englor 42:323. 1909. 
Subscandent shrub, often epiphytic; branchlets subterete, brownish or cinere- 
ous, sparsely puberulous when young becoming glabrous; petioles terete, 
minutely puberulous or glabrous, 2 to 4 mm. long; leaf blades ovate or oblong- 
ovate, 5 to 9 cm. long, 2 to 3.5 cm. broad, cuneate or truncate at base, acuminate 
at apex, entire at margins, glabrous, 5-pli-nerved, the secondary nerves oriented 
near base, with the mid nerve impressed above, prominent beneath, the veinlets 
reticulate, plane or slightly raised on both surfaces; Inflorescence terminal or 
axillary near ends of branchlets, racemose, 10 to 30 flowered; racliis subterete, 
3 to 14 cm. long, glabrous; pedicels subrugose, glabrous, 10 to 20 mm. long, each 
subtended by a papyraceous oblong obovate bract up to 1 cm. long, blbracteo- 
late near base with ovate bractlets 1 to 2 mm. long, swollen at apex; calyx 
tube short-cylindric, 1 to 2 mm. long and about 3 mm. in diameter at anthesls, 
sparsely brown-puberulous or subglabrous; limb 2 to 2.5 mm, long, including 
lobes, the lobes triangular, apiculate, about 1 mm. long, thin-margined and 
sometimes sparsely glandular-margined; corolla subcylindrie, 9 to 10 mm. long, 
about 4 mm. in diameter, contracted above, sparsely brown-puberulous or 
glabrous, the lobes triangular, subacute, about 1 mm. long; stamens about 7 mm. 
and 8 mm. long, respectively; filaments castaneous, distinct, distally puberulous, 
about 2 mm. and 4 mm. long, respectively; anther sacs nearly smooth, about 
SMITH—AMERICAN SPECIES OP THIBAUDEEAE 457 
2 mm. long; tubules wide, about 3.5 mm. and 3 mm. long, respectively; stigma 
peltate. 
Type locality: Department of Alta Verapaz, Guatemala, altitude about 
2,150 meters. Type collected by Warszewicz. 
Distribution : Mountains of southern Mexico and Guatemala, altitude 800 to 
2,150 meters. 
Mexico: Ehrenberg 630 (B). 
Chiapas: Tumbala, Nelson 3350 (N), 3362 (N). 
Guatemala. 
Alta Verapaz: Warszewicz (B, type). Cob&n, von Tuerckheim 64 (B, 
type of C. tuerekheimii, G, N, Y), II. 1826 {F, G, N, T). Finca Sepacu- 
it6, Cook tf Qriygs 99 (N), 129 (N). Between Panzos and Sepacult£, 
Goll 213 (F, N). Finca Mocca, Johnson 134 (N). 
This gpecles and the two following were considered by Klotzsch to constitute 
a distinct genus, Polyboea, a view which is somewhat supported by the undeni- 
ably close relationship between them. They are readily separated by the 
characters mentioned in the key. Between the two types here involved there 
are no important differences. 
12. Cavendishia quereme (H. B. IC.) Benth. & Hook. Gen. PI. 2:570. 1876. 
A description will be found in the section of this treatment dealing with 
the South American species of this genus. 
Ttpb locality : Near Cali, Department of El Valle, Colombia, altitude 
about 1,000 meters. Type collected by Humboldt and Bonpland. 
Distribution : Mountains of Costa Rica, also in the Western Cordillera of 
Colombia, altitude 1,000 to 1,700 meters. 
Costa Rica. 
San Jos£: La Palma, WerckU 11567 (N). La Hondura, Standley 36130 
(N), 36223 (N), 36552 <N), 37593 (N), 37633 (N), 37807 (N) ; Standley 
A Valeria 51919 (F, N). 
Castaqo: Orosi, Pittier 16610 (N); Standley 39832 (N). El Mufieco, 
Standley 33556 (N), 33618 (N); Standley & Torres 51400 (N). 
Evidently this species is locally common in Costa Rica; the specimens here 
cited seem identical with those from Colombia. 
13. Cavendishia crassifolia (Benth.) Hemsl. BIol. Centr. Amer. Bot. 2:273. 
1881. 
Thibaudia crttssifolia Benth, PI. Hartw. 65. 1840. 
Polyboea erasitifolia Klotzsch, Linnaea 24:31. 1851. 
Chupalon erassifotium Kuntze, Rev. Gen, PI. 2: 383. 1891. 
Subscandent shrub, sometimes epiphytic; branchlets subterete, dark brown, 
glabrous: petioles terete, slightly rugose, glabrous, sometimes nigrescent, 5 to 
10 mm. long; leaf blades oblong-ovate, 7 to 13 cm. long, 2.5 to 5 cm. broad, 
cuneate at base, caudate-acuminate at apex, entire and slightly revolute at 
margins, glabrous (or very sparsely pilose beneath with appressed brown 
hairs), 5-pli-nerved (rarely 7-pli-nerved), the secondary nerves oriented near 
base, with the midnerve slightly impressed above, prominent beneath, the 
yeinlets reticulate, nearly plane on both surfaces; inflorescence terminal or 
axillary, racemose, 10 to 20 flowered; rachis subterete, glabrous, 2 to 5 cm. 
long; pedicels subrugose, 6 to 11 mm. long, glabrous or minutely brown- 
puberulous, each subtended by a membranous, oblong or obovate, glabrous 
bract up to 2 cm. long and 1 cm. broad (bracts deciduous), deciduously 
bibracteolate near base with oblong lanceolate bractlets about 2 mm. long; 
calyx tube slightly rugose, subcylindric or broadly campanulate, glabrous or 
458 CONTRIBUTIONS PROM THE NATIONAL HERBARIUM 
minutely brown-puberulous, about 2 mm. long and 3 mm. in diameter at 
anthesis; limb about 2 mm. long including lobes, short-pilose distally with 
stout brown hairs up to 0.3 mm. long, the lobes triangular, acute, about 1 mm. 
long, thin margined and deciduously glandular margined; corolla subcylindric, 
about 15 mm. long and 4. to 5 mm. in diameter, glabrous, the lobes triangular, 
subacute, about 1 mm. long; stamens 12 to 12.5 mm. long; filaments dark 
castaneons, distinct, sparsely puberulous at margins and ventrally distally, 
about 2,5 mm, and 4.5 mm. long, respectively; anther sacs nearly smooth, 
about 2.5 mm. long; tubules wide, 7.5 mm. and 6.5 mm. long, respectively; 
style slightly exserted^ the stigma broadly peltate; young fruit nigrescent, 
subsplierical, glabrous, up to 6 mm. in diameter. 
Type locality: Totontepeque, State of Oaxaca, Mexico. Type collected by 
Hartweg (no. 477). 
DISTRIBUTION: Mountains of southern Mexico and Guatemala, altitude 800 
to 1,700 meters. 
Mexico: Alpatlahua, Hanbury (K), 
Oaxaca: Totontepeque, Hartweg 477 (B, K, type, Y); Nelson 778 (N). 
Tetalcingo to Ghoapan, Reko 4096 (N). 
Chiapas: Qhiesbreght 645 (G, K). Fen fa, Pwpus 10410 (N, Y). 
Guatemala. 
Alta Vksapaz; Between Panzos and SepacuiW, Ooll 211 (N, Y). 
14. Cavendishia chiapensls Brandeg. TTniv, Calif. Pnbl. Bot. 6:188. 1915. 
Shrub; branchlets subterete, cinereous, glabrous; petioles subterete, slightly 
rugose, glabrous or minutely puberulous, 12 to 16 mm. long; leaf blades oblong- 
ovate, 12 to 15 cm. long, 4 to 6 cm. broad, cuneate or truncate at base, long- 
acuminate at apex, entire and slightly revolute at margins, essentially glabrous 
above, glabrous beneath or very sparsely pilose with minute appressed nigrescent 
hairs, 5 to 7 pll nerved, the secondary nerves oriented near base, with the mid- 
nerve slightly impressed above, prominent beneath, the veinlets reticulate, 
nearly plane on both surfaces; inflorescence axillary, short-racemose, 10 to 15 
flowered, essentially glabrous in all parts (calyces and pedicels sometimes 
sparsely puberulous with minute stiff hairs), circumscribed at base by numer- 
ous deciduous papyraceous oblong bracts about 2 cm. long and 1 cm. broad; 
rachis angled, 2 to 2.5 cm. long; pedicels subrugose, 10 to 13 mm. long, each sub- 
tended by a deciduous bract similar to those at base of raceme, deciduously 
bibracteolate near base with oblong fhnbriato bractlets about 2 mm. long, 
swollen distally; calyx tube campanulate, about 2 mm. long and 3 mm. in 
diameter at anthesis; limb about 2.5 mm. long including lobes, the lobes tri- 
angular, acute, about 1 mm. long, ihiii-margiutHl mid sparsely glandular-margined ; 
corolla subcylindric, about 15 mm. long and 4 mm. in diameter, the lobes tri- 
angular, subacute, about 1 mm. long; stamens alternately slightly unequal; 
filaments imperfect in our specimens but apparently short; anther sacs 
slightly granular, about 2.5 mm. long; tubules wide, about 11 mm. and 9.5 mm. 
long, respectively; stigma peltate; young fruit somewhat nigrescent, subspherical, 
5 mm. in diameter or more. 
Type locality : Cerro del Boquer6n, State of Chiapas, Mexico. Type collected 
by Purpus (no. 7342). 
Distribution : Known only from the type collection. 
Mexico. 
Chiapas: Cerro del Boquer6n, Purpus 7342 (type collection, F, G, N, Y). 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 459 
15. Cavendishia latifolia Hemsl. Blol. Centr. Amer. Bot. 3:273, 1881. 
Chitpalon latifolium Kuntze, Rev. Gen. PI. 2:383. 1891. 
Shrub; branchlets subterete; petioles rugose, glabrous, about 10 mm. long; 
leaf blades ovate-oblong, 11 to 13 cm. long, 6 to 8 em, broad, rounded at base, 
short-acuminate at apex, entire at margins, glabrous, 7-pli-nerved, the sec- 
ondary nerves oriented near base, with the midnerve slightly impressed above, 
raised beneath; inflorescence apparently terminal, short-racemose, glabrous in 
all parts, deciduously bracteate at base; rachis 3 to 4 cm. long; pedicels 10 to 
12 mm. long, bracteate at base; calyx tube campanulate, the lobes broad, 
obtuse, glandular-ciliate; corolla subcylindric, 12 to 16 mm. long; stamens 
subequal, the filaments and anthers compensatingly unequal; filaments essen- 
tially distinct, slightly hirsute. 
Type locality: Pueblo Nuevo, southern Mexico. Type collected by Linden 
(no. 390). 
Distribution : Known only from the type collection. 
I have not seen the type specimen of this species, which is characterized as 
* 
above on the basis of the original description and a photograph of the type in 
the herbarium of the New York Botanical Garden. 
16. Cavendishia guatemalensis Loesener, Bull. Herb. Boiss. II. 3:221. 1903. 
Shrub 2 to 4 meters high, probably epiphytic; branchlets angled, brownish or 
cinereous, glabrous; petioles slightly rugose, glabrous, 5 to 10 mm. long; leaf 
blades oblong or ovate-oblong, 10 to 15 cm. long, 3.5 to 6.5 cm. broad, rounded 
or truncate at base, acuminate at apex, entire and slightly revolute at margins, 
essentially glabrous, 7-pli-nerved, the secondary nerves oriented near base, with 
the midnerve slightly impressed above, prominent beneath, the veinlets reticu- 
late, nearly plane on both surfaces; inflorescence axillary, short-racemose, 10 
to 20 flowered, circumscribed at base and surrounded, when young, by numerous 
bracts, the bracts broadly ovate or oblong, up to 15 mm. long and 12 mm. 
broad, papyraceous, densely pubescent without with appressed white hairs up 
to 0.4 mm. long, the hairs sometimes at margins only; rachis subterete, 2 to 
3.5 cm. long, densely and persistently pubescent with lax white hairs about 
0.4 mm. long; pedicels rugose, pubescent as the rachis, S to 12 mm. long, each 
subtended by a deciduous bract similar to those at base of racemes, bibracteo- 
late near base with oblong pilose bractlets about 2 mm. long, swollen distally; 
calyx pilose as the pedicel, the tube broadly campanulate, about 2 mm. long 
and 4 mm. in diameter at anthesis, the limb about 3 mm. long including lobes, 
the lobes triangular, acute, 2 mm. long, margined with several erect brown 
glandular hairs about 0.2 mm. long; corolla subcylindric, 15 to 16 mm. long 
and 4 to 5 mm. in diameter, densely pilose with pale spreading hairs about 0.3 
mm. long, the lobes triangular, subacute, about 1 mm. long; stamens 11 to 
11.5 mm. long; filaments castaneous, loosely coherent at base, glabrous or 
distally puberulous, about 2 mm. and 3.5 mm. long, respectively; anther sacs 
nearly smooth, about 2.5 mm. long; tubules wide, 7.5 mm. and 7 mm. long, 
respectively; stigma peltate; young fruit subsplierical, becoming subglabrous, 
up to 7 mm. in diameter. 
Tyfb locality: Jacaltenango, Department of Huehuetenango, Guatemala, 
altitude 2,380 meters. Type collected by Seler (no. 3107). 
DISTRIBUTION: Mountains of Guatemala, altitude 1,700 to 2,400 meters. 
Guatemala. 
QuickC: San Miguel Uspant&n, Ileyde £ Lux 3184 (F, G, N). 
Huehuetenango: Jacaltenango, Seler 3107 (type collection, B, N, Y). 
Alta Verapaz: Cham& to Cob&n, Johnson 568 (N). 
Zacatep£quez : Embaulada, Heyde & Lua> 4532 (F, G, N). 
460 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
A very distinctive species, being the only one in Central America in wbieli 
the inflorescence is uniformly pubescent. Its closest relative is the South 
American G, pubescens, 
17. Cavendishia smithii Iloer. Bot. Jnlirb. Engler 42:328. 1909. 
Shrub 1 to 5 meters high, sometimes epiphytic; branchlets subterete, brown- 
ish, glabrous or sparsely puberulous; petioles rugose, glabrous, 4 to 10 mm. 
long (rarely longer), angled or narrowly winged above; leaf blades thick- 
coriaceous, oblong or oblong-obovate, 6 to 11 (rarely to 17) cm. long, 2.5 to 5 
(rarely to 9) cm. broad, cuneate or truncate at base, abruptly caudate-acuminate 
at apex, entire and slightly revulute at margins, glabrous, 5 (rarely 7) pli- 
nerved, the secondary nerves oriented near base, with the midnerve impressed 
above, prominent beneath, the vein lets reticulate, plane or slightly raised on 
both surfaces; inflorescence axillary or terminal, short-racemose, 6 to 15 flow- 
ered, essentially glabrous in all parts, circumscribed at base and completely 
enveloped when young by numerous Imbricate papyraceous oblong bracts up 
to 2 cm, long and 1 cm. broad; rachis stout, 1 to 3 cm. long at maturity; 
pedicels subrugose, (J to 14 mm. long, each subtended by a deciduous bract 
similar to those at base of raceme, deciduously bibracteolate near base with 
oblong bractlets about 3 mm. long; calyx tube campanulate, sometimes very 
sparsely pilose, about 3 mm. long and 3 mm. in diameter at anthesis; limb 
about 3 mm. long including lobes, the lobes triangular, acute, sparsely pilose 
without and densely flmbriate with stout glandular hairs about 0.1 mm. long, 
the sinuses rounded; corolla 18 to 20 mm. long, about 5 mm. in diameter, 
slightly contracted above, the lobes triangular, subacute, about 1 mm. long; 
stamens about 14 mm. and 15 mm. long, respectively; filaments dark castaneous, 
connate in basal half, sparsely puberulous distally, 3.5 mm. and 5.5 mm. long 
respectively; anther sacs nearly smooth, incurved at base, 2.5 to 3 mm. long; 
tubules wide, 9.5 mm. and 7.5 mm. long respectively; stigma truncate; young 
fruit rugose, subspherical, up to S mm. in diameter, surmounted by the per- 
sistent calyx limb and style. 
Type locality: Volcftn Irazfi, Province of Cartago, Costa Rica, altitude 
about 2,500 meters. Type collected by John Donnell Smith (no. 4876), 
Distribution : Mountains of Nicaragua, Costa Rica, and western Panama, 
altitude 1,400 to 2,700 meters. 
Nicaragua: Wright (G, N). Mumbaeho Volcano, Maxon, Harvey & Valentine 
7768 (N). 
Costa Rica: Volciin de Bnrbn, Hoffmann 5% (It). Narango, Oersted 8572 (Y). 
Heredia : Yerba Buena, northeast of San Isidro, Standley & Valerio 
49091 (N). 
Alajuela: VolcfLn Po&s, J. D. Smith 6636 {B, F, G, N, Y) ; Tonduz 10781 
(N) ; Jimenez 1030 (N) ; Stanley 34878 (N). 
San Josfi: La Palma, Tondus 7462 (F, G, N, Y), 12351 (N), 12657 (N) ; 
Brade 16333 (N) ; WcrcJcU 11597 (N), 1(5684 (N), 17413 (B) ; Mawon d 
Harvey 7913 (N), 7914 (N) ; Standley 32954 (N), 32987 (N), 32999 
(N), 33071 (N), 33088 (N). Las Nubes, Standley 38(531 (N), 38853 
(N). Laguna de la Chonta, Standley 42287 (N). 
Caktago: Vole&n Irazti, J. D. timith 4876 (type collection, G, N) ; Kuntse 
2348 (N); Stork 1264 (F). La Carpintera, Standley 35698 (N) ; Stark 
1161 (F). 
Panama; Veraguas, Bridges (K). 
This is the most common species in Central America and one which shows 
a good deal of variation, especially in the leaves, which sometimes reach a size 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 461 
of 17 cm. by 9 cm. The above dimensions are taken from average material. 
The proportions of leaf length and breadth are fairly constant, but the species 
is not too clearly separable from the two following. Occasionally In C. amithii 
the calyx is puberulous, but never persistently so. 
18. Cavendishia veraguensis (Klotzseh) Hemsl, Biol. Centr, Amer. Bot. 
2:273. 1881. 
ProcleHa, veraguensis Klotzseh, Linnaea 24: 35. 1851. 
Chupaton veraguense Kuntze, Rev. Gen. PI. 2:383. 1891. 
Shrub; branchlets subterete or angled, brownish or cinereous, when young 
pilose with pale spreading hairs about 0.5 mm. long, becoming glabrous; petioles 
subterete, pilose as the branchlets, 4 to 6 mm. long; leaf blades oblong or 
lanceolate-oblong, & to 14 cm. long, 2.5 to 4 cm. broad, cuneate or truncate at 
base, long-acuminate at apex, entire and slightly revolute at margins, essen- 
tially glabrous above, glabrous beneath or very sparsely puberulous on nerves 
at base, 5-pU-nerved, the secondary nerves impressed above, prominent beneath, 
the veinlets reticulate, slightly raised on both surfaces; inflorescence axillary, 
short-racemose, 5 to 12 flowered, circumscribed at base and completely enveloped 
when young by numerous, closely imbricate, papyraceous, glabrous, oblong bracts 
up to 2.5 cm. long and 1.5 cm. broad; rachis sub rugose, 1 to 2 cm. long, essen- 
tially glabrous; pedicels subrugose, 8 to 12 mm. long, glabrous or sparsely 
puberulous, each subtended by a deciduous bract similar to those at base of 
raceme, minutely and deciduous!y bibracteolate at base; calyx tube short- 
ly lindrio or campanulate, 3.5 mm. long, 4 to 5 mm. in diameter at anthesis, 
short-puberulous at base; limb 1 to 2 mm. long, including lobes, the lobes trian- 
gular, apiculate, less than 1 mm. long, sometimes sparsely glandular-margined; 
corolla cylindric, 19 to 22 mm. long, about 5 mm. in diameter, glabrous or 
minutely puberulous distally, the lobes triangular, subacute, about 1 mm. long; 
stamens 17 to 19 mm. long; filaments dark castaneous, stout, distinct, about 
3 mm. and 5 mm, long, respectively, pilose, especially distally, with pale hairs 
up to 0.3 mm. long; anther sacs slightly granular, sometimes subpuberulous, 
3.5 to 4.5 mm. long; tubules wide, flexible, about 12 mm. and 10 mm. long, 
respectively; stigma peltate; young fruit rugose, subspherical, up to 0 mm. in 
diameter, surmounted by the persistent calyx limb and style. 
Type locality : Costa Rica. Type collected by Warszewicz. 
DISTRIBUTION: Mountains of Costa Rica, altitude 1,100 to 2,800 meters. 
Costarica: Warszewicz (B, type). Cascajal, Lankester 107 (K). 
Alajtjela: Volcfin Po&s, PUtier 2033 (N, in part). 
San Josfs: L#a Palma, Brade 2102 (B). 
Caktago: Volcftn Irazti, Oersted 8560 (N, Y). Volcfin Turrialba, PUtier 
7547 {13089 Herb. Nat. Cost; F, G, N). El Rosario de Orosi, Pittier 
10909 (N, Y). 
Distinguished from the following only by the puberulous calyx, a character 
which may well be questioned as a basis of specific distinction. 
19. Cavendishia costaricensis Hoer. Bot. Jahrb. Engler 42:32ft 1909. 
Slender shrub 2 to 5 meters high, sometimes epiphytic; branchlets subterete 
or angled, brownish, when young puberulous with spreading hairs about 0.2 mm, 
long, becoming glabrous; petioles subrugose, sparsely puberulous, becoming 
glabrous, 4 to 10 mm. long, angled above; leaf blades thick-coriaceous, oblong 
or ovate-oblong, 8 to 14 cm. long, 2.5 to 5 cm. broad, cuneate at base (rarely 
truncate or subcordate), long-acuminate at apex, entire and slightly revolute at 
margins, essentially glabrous, 5 to 7 pli-nerved, the secondary nerves oriented 
near base, with the midnerve impressed above, prominent beneath, the vein- 
462 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
lets reticulate, slightly raised or nearly plane on both surfaces; inflorescence 
axillary near ends of branchlets, short-racemose, 8 to 12 flowered, essentially 
glabrous in all parts, circumscribed at base and completely enveloped when 
young by numerous, imbricate, papyraceous, oblong or ovate bracts up to 2.5 
cm. long and 1.5 cm. broad; rachis stout, 1 cm. long or less; pedicels subterete, 
7 to 10 mm, long, each subtended by a deciduous bract similar to those at base 
of raceme, bibracteolate near base with narrow oblong bractlets 1 to 2 mm. 
long; calyx tube broadly campanulate, sub rugose, about 3 mm. long and 4 mm. 
in diameter at anthesis; limb about 3 mm. long including lobes, the lobes tri- 
angular, acute, about 1.5 mm. long, densely margined with minute glandular 
hairs, sparsely glandular on exterior surfaces or glabrous; corolla subcylindric, 
19 to 24 mm. long, about 5 mm. in diameter, the lobes triangular, subacute, 
about 1 mm. long; stamens 14 to 18 mm. long; filaments castaneous, distinct or 
loosely coherent at base, about 3.5 mm. and 5 mm. long, respectively, puberulous 
within distally with hairs up to 0.3 mm. long; anther sacs sparsely granular, 
3.5 to 4 mm. long; tubules bright yellow, wide, flexible, 9 to 10 mm. and 7 to 8 
mm, long, respectively; stigma peltate; young fruit rugose, up to 6 mm. in 
diameter, surmounted by the persistent calyx limb. 
Type locality : La Palma, Province of San Jos6, Costa Rica, altitude 1,550 
meters. Type collected by Werckl6 (no. 54). 
DISTRIBUTION: Mountains of Costa Rica, altitude 1,500 to 2,400 meters. 
Costa Rica: Brade 2354 (B). Cerro Jucosal, Stork 1115 (F), Agua Caliente, 
Stork 1316 (F). San Cristobal Road, Stork 2567 (P). 
Hmedia : Cerro de las Cariclas, Standley d Valeria 52038 (N), 52276 (N), 
52311 (N), 52342 (N). Cerros de ZurquI, Standley A Valeria 50415 
(N), 50752 (N). Cerros de Las Lajas, Standley <£ Valerio 51589 (N). 
Yerba Buena, Standley & Valerio 50189 (N). 
San Jos£: La Palma, Werckl4 54 (B, type). Laguna de la Chonta, Stand- 
ley 42190 (F, N). North of El Copey, Standley 42650 (N>. 
Cabtago: Cart ago, Stevens 75 (N) ; Stork 390 (N). La Estrella, Standley 
39460 (N). Cerro de La Carpintera, Standley 34329 (N), 34334 (N), 
34467 (N). 
20. Cavendishia hoffmannii Hoer. Bot. Jahrb. Engler 42: 328. 1909. 
Shrub; branchlets subterete, rugose, brownish, glabrous; petioles rugose, 
4 to 7 mm. long, glabrous; leaf blades oblong, coriaceous, 10 to 15 cm. long, 
3.5 to 5 cm, broad, broadly cnneate at base, long-acuminate at apex, entire and 
often cartilaginous at margins, glabrous and impressed-pun< ta te on both 
surfaces, 5-pli-nerved, the secondary nerves oriented near base, ascending, with 
the midnerve impressed above, prominent beneath, the veinlets reticulate, 
obscure; Inflorescence axillary near ends of branchlets, sub fasciculate or short- 
racemose (rachis rarely more than 5 mm. long), essentially glabrous in all 
parts, 8 to 12 flowered, circumscribed at base by numerous, imbricate, oblong 
or ovate, papyraceous bracts up to 25 mm. long; pedicels rugose, 5 to 10 mm. 
long, each subtended by a bract similar to those at base of racemes, deciduously 
bibracteolate near base; calyx tube subrugose, campanulate, about 3 mm. long 
and 3.5 mm. in diameter at anthesis, minutely pilose when young; limb about 
2 mm. long including lobes, the lobes deltoid, about 1 mm. long and 3 mm. broad, 
sparsely deciduously glandular-margined; corolla subcylindric, about 20 mm. 
long and 4 mm. in diameter, the lobes oblong, about 1,5 mm. long; stamens 
16 to 17 mm. long; fl laments castaneous, distinct, sparsely pilose distally, 3 mm. 
and 6 mm. long, respectively; anther sacs slightly granular, 3 to 3.5 mm. long; 
tubules flexible, about 10.5 mm. and 8.5 mm. long, respectively; stigma truncate. 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 463 
Type locality : Vole An irazti, Province of Cartago, Costa Rica. Type col- 
lected by Hoffmann (no. 141). 
Distribution : Known only from the type collection. 
Costa Rica. 
Caktago: Volcftn Irazti, Hoffmann 141 (B, type). 
From the two preceding species this plant la distinguished by having the 
leaves distinctly punctate on both surfaces. In floral characters the three 
species are very close, and I should hesitate to describe new species on the 
slender characters that evidently were considered sufficient by Hoerold. 
DOUBTFUL CENTRAL AMERICAN SPECIES 
Cavbndishia warszewiqzii (Klotzsch) Hemsl. Biol. Ceotr. Amer, Bot. 2:274. 
1881. 
Proolesia wqrszewiozii Klotzsch, Llnnaea 24: 35. 1851. 
Chupalon toarszewiczii Kuntze, Rev. Gen. PI. 2:388. 1891. 
Type locality : Mountains of Guatemala. Type collected by Warszewicz. 
I have not seen the type of this species, which, according to the description, 
probably allies Itself to C. chiapensis. 
KEY TO SOUTH AMERICAN SPECIES 
(Including Panama east of the Canal Zone) 
Calyx lobes slightly imbricate, the adjoining margins narrowly overlapping. 
Leaves amplexicaul at base, rounded at apex 1. C. complectens. 
Leaves cuneate or subcordate at base, acuminate at apex 2. C. compact*. 
Calyx lobes not imbricate. 
Limb of calyx erect or suberect, subcylindrlc, 3 to 8 mm. long, longer than 
tube, 
' Corolla pubescent, the hairs pale, 0.3 mm. long or more. 
Branchlets and leaves glabrous; leaves pinnate-veined; calyx 3 or 4 
times as long as broad ; 3. C. lindauiana. 
Branchlets and lower surface of leaves hispid; leaves pli-nerved; calyx 
twice as long as broad 4. C. hispida. 
Corolla glabrous. 
Calyx lobes callose-thickened. 
Branchlets, petioles, and lower surface of leaves pilose. 
5. C. bomareoides. 
Branchlets, petioles, and lower surface of leaves glabrous. 
Corolla#25 to 30 mm. long; calyx llnlb 3 times as long as the strongly 
apophysate tube ;   6. C. splachnoides. 
Corolla 13 to 22 mm, long; calyx limb 1 to 2 times as long as the 
rugose subapophysate tube. 
Inflorescence up to 5 cm. long at maturity; filaments connate at 
base or free, glabrous (Colombia). 
Leaves 13 to 16 cm. long; pedicel without teeth at summit; fila- 
ments connate at base; stamens about 16 mm. long. 
7. C. amalflensis. 
Loaves 5 to 7 cm. long; pedicels surmounted by minute teeth; 
filaments free; stamens about 10 mm. long.. 8. C. purdlei. 
Inflorescence 10 to 14 cm. long at maturity; filaments free, the 
long ones pilose (Pacaralma Mountains) 9. C. duidae. 
84377—32 11 
464 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Calyx lobes not callose-thickened. 
Inner bracts margined with short-stalked glands 10. C. adenophora. 
Inner bracts not glandular-margined. 
Leaves cordate and subamplexicaul at base, obtuse at apex. 
18. C. subamplexicaulls. 
Leaves cuneate or truncate at base, long-acuminate at apex. 
Calyx limb minutely glandular-dotted. 
Branchlets and leaves glabrous. 
Leaves not more than 10 cm. long and 4 cm. broad; bracts 
membranous, obviously veined; stamens about one-third 
as long as corolla 11. C. venosa. 
Leaves up to 20 cm. long and 6 cm. broad; bracts subcoria- 
ceons, obscurely veined; stamens nearly as long as corolla. 
12. C. macrocephala. 
Branchlets and lower surface of leaves pale-pilose. 
40, C. glandulosa. 
Calyx limb not glandular-dotted. 
Leaves large, up to 40 cm. long and 16 cm. broad; racemes 15 to 
25 cm. long 13. C. grandlfolia. 
Leaves smaller, not more than 17 cm. long and 7 cm. broad; 
racemes less than 9 cm. long. 
Inflorescence long-racemose, the racliis 4 to 9 cm. long at 
maturity  14. C. tarapotana. 
Inflorescence short, the rachis 1 cm. long or less at maturity. 
Pedicels glandular-dotted, the glands short-stalked, decidu- 
ous after maturity 15. C. engleriana. 
Pedicels eglandular. 
Leaves 2 to 3 times as long as broad (4 to 7 cm. broad); 
stamens about 28 mm. long (Ecuador). 
16. C. gilgiana. 
Leaves 3 to 4 times as long as broad (about 3 cm. broad); 
stamens about 17 mm. long (northwestern Colombia). 
17. C. kalbreyeri. 
Limb of calyx erecto-patent, usually shorter than tube (rarely erect, then 
deeply cleft). 
Racemes elongate, the rachis 7 to 20 cm. long at maturity. 
Rachis simple, or rarely with a few short lateral branches. 
Leaves strongly cordate, subamplexicaul 18. C. subamplexicaulis. 
Leaves truncate or lightly subcordate, not amplexicauL 
Pedicels and rachis puberulous; corolla less than 7 mm. long; leaves 
up to 6 cm. long, not punctate (Colombia) 19. C. spicata. 
Pedicels and rachis glabrous; corolla 11 to 13 mm. long; leaves 10 
to 25 cm. long, densely punctate on both surfaces (Peru). 
20. C. punctatifolia. 
Rachis freely branched, the lateral branches elongate, 5 to 10 in number. 
Flowers large, the corolla about 20 mm. long; brancblets and petioles 
robust; primary rachis averaging 7 mm. in diameter (Colombia). 
21. C. divaricata. 
Flowers smaller, the corolla 10 to 12 mm. long; primary rachis aver- 
aging 4 mm. In diameter (Peru and Bolivia). 22. C. paniculata. 
SMITH—AMERICAN SPECIES OF THIBAXJDIEAE 465 
Racemes comparatively short, the rachis less than 4 cm. long, slightly 
longer in some specimens of nos. 26 and 37. 
Corolla pubescent with pale persistent hairs. 
Leaves attenuate at base; flowers solitary or in pairs, subsesslle In 
leaf axils—: 23. C. sessillflora. 
Leaves cuneate, truncate, or subcordate at base; flowers several or 
many to an inflorescence, pediceled.. 
Bractlets of pedicels glandular-margined; calyx lobes flmbriate with 
glandular hairs; leaves rounded or obtuse at apex. 
24. C, killlpil. 
Bractlets of pedicels not glandular-margined (except no. 29); calyx 
lobes not glandular-fimbriate (sometimes with sessile glands); 
leaves various at apex, seldom rounded. 
■ Lower surface of leaves densely nigrescent-pilose (hairs about 0.2 
mm. long, 5 to 8 per sq, mm. of surface (Peru). 
25. G. peruviana. 
Lower surface of leaves glabrous or pale-pilose or sparsely brown- 
pilose. 
Leaves 7 to 9 pli-nerved, 10 to 18 cm. long, pilose beneath; calyx 
lobes elongate-triangular, usually slightly longer than 
broad 26. C. pubescens. 
Leaves 5 (rarely 3 or 7) pli-nerved or pinnate>veined; calyx 
lobes triangular, broader than long. 
Calyx tube campanulate or ehort-cylindric, about 3 mm. long; 
leaves oblong, ovate, or ovate-lanceolate. 
Leaves pilose beneath; calyx lobes glandular-margined. 
Corolla about 17 mm. long; leaves up to 8 cm, long, short- 
acuminate (acumen less than 1 cm. long). 
26b. C. pubescens microphylla. 
Corolla 12 to 14 mm. long; leaves S to 11 cm. long, long- 
acuminate (acumen 1 to 2 cm. long). 
27. C. sillarensis. 
Leaves essentially glabrous beneath; calyx lobes eglandular. 
Calyx lobes triangular, 1 to 1.5 mm. long. 
Leaves about twice as long as broad. 
Leaves 35 to 70 mm. long, 20 to 35 mm. broad, sub- 
cordate at base (Venezuela, Colombia, and north- 
ern Ecuador) 28. C. cordifolia. 
Leaves 30 to 50 mm. long, 15 to 221 mm. broad, trun- 
cate or lightly subcordate at base. 
Calyx pale-pilose; leaves 5-nerved, hardly scabridu- 
lous above (Ecuador) 29. C. hartwegiana. 
Calyx glabrous or with a few stiff stout brown 
hairs; leaves 8-nerved, scabridous above (Peru). 
30. C. bracteata. 
Leaves about 3 times as long as broad, usually truncate 
at base, rarely lightly subcordate. 
CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Branchlets puberulons; leaves usually scabridulous 
on both surfaces (Colombia). 
31. 0. scabriuscula. 
Branchlets usually subglabrous; leaves rarely sca- 
bridulous (Peru and Bolivia). 
30. C. beckmanniana. 
Calyx lobes apiculate, less than 1 mm. long (western 
Colombia) 33. C. xnontana. 
Calyx tube elongate, subfalcate, 6 to 7 mm. long; leaves elon- 
gate-deltoid 34. 0. durifolia. 
Corolla glabrous. 
Flowers small, the corolla 5 to 10 mm. long. 
Leaves broadly ovate, 6 to 9 cm. broad, subsessile; inflorescence few- 
flowered, crowded in leaf axils; corolla less than 6 mm. long. 
35. C. axillaris. 
Leaves ovate or oblong, not more than 4.5 cm. broad, petioied; 
Inflorescence several to many-flowered; corolla 7 to 10 mm. long. 
Apex of leaves subacute or obtusely short-acuminate; leaves 3 to 
5 cm, long 36. C. gu&tapeensis. 
Apex of leaves long-acuminate; leaves 7 to 13 cm. long. 
Rachis 2 to 5 cm. long; pedicels 8 to 12 mm. long. 
37. C. quereme. 
Rachis less than 2 cm. long; pedicels 2 to 5 mm. long (rarely 
more). 
Inflorescence sub fasciculate; bractlets of pedicels exceeding 
the calyx in length; calyx campanulate, the lobes large, 
triangular-ovate 38. C. caudata. 
Inflorescence laxly short-racemose; bractlets absent or very 
small; calyx cylindrlc, the lobes small, triangular- 
apiculate 39. C, ollgantha. 
Flowers larger, the corolla at least 10 mm. long. 
Calyx tube densely and uniformly covered with minute spherical 
glands 40. C. glandulosa. 
Calyx tube not gland-covered. 
Leaves narrowly lanceolate, up to 1 cm. broad. 
41. C. angustifolla. 
Leaves variously shaped, more than 1.5 cm. broad. 
Apex of leaves rounded (rarely obtuse). Plant robust, the 
branchlets stout, often angled; calyx tube usually rugose; 
bracts numerous   42. C. obtusa. 
Apex of leaves subacute or acuminate. 
Bractlets at base of pedicels linear, 10 to 13 niiu. long, glandu- 
lar margined ; calyx lobes elongate-triangular, each flanked 
by a nigrescent elongate callose thickening. 
43. C. margin at a. 
Bractlets at base of pedicels small; calyx lobes not as above. 
Venation of leaves 5-pli-nerved. 
Leaves lanceolate-oblong, 5 times as long as broad (20 to 
to 25 cm. long) 44. C. rlgidifolla. 
Leaves various, 2 or 3 times as long as broad (up to 
15 cm. long). 
SMITH—AMERICAN SPECIES OP THIBAUDIEAE 467 
Calyx tube pilose (at least at base), tbe hairs pale, 
about 0.25 mm. long. 
Leaves long-acuminate, oblong-lanceolate, 3 times as 
long as broad (7 to 10 cm. long); pedicels pubes- 
cent, the hairs as those of calyx tube (Colombia). 
45. C. lehmannll. 
Leaves acute, ovate, not much longer than broad (3 to 
6 cm. long); pedicels essentially glabrous (Ecua- 
dor)  29, C. hartwegiana. 
Calyx tube glabrous. 
Corolla slender, not more than 2.5 mm. in diameter; 
plant of slender habit, the petioles usually less 
than 1 mm. in diameter 46. C. gracills. 
Corolla 3.5 mm. or more In diameter; habit stouter, 
the petioles averaging 1.5 mm. or more in 
diameter. 
Bracts, young branchlets, and petioles pilose, the 
hairs pale, about 0.2 mm. long; leaves subpubes- 
cent on principal nerves beneath. 
47. C. pseudopubescens. 
Bracts, young branchlets, and petioles essentially 
glabrous. 
Leaves oblong, subcordate at base, obtusely short- 
acuminate at apex  48. C. miconioides. 
Leaves ovate-oblong, cuneate or. truncate at 
base, acuminate at apex. 
Apex of leaves acuminate (acumen usually less 
than 1 cm. long) .; leaves up to 10 (rarely 
13) cm. long. 
Leaves subcoriaceous, dull, sharply acuminate, 
predominantly ovate or lanceolate-ovate 
(western Colombia to Bolivia). 
49. C. acuminata. 
Leaves coriaceous, nltid, predominantly ob- 
long (Venezuela and eastern Colombia). 
, 50. C. splendens. 
Apex of leaves long-acuminate (acumen about 
2 cm. long); leaves 12 to 15 cm. long, dull 
olivaceous (Peru) 51. C. weberbauexi. 
Venation of leaves 7 to 9 pll-nerved. 
Nerves oriented near base (rarely joined for more th&n 
1 cm.). 
Corolla up to 20 mm. long, . ., 
Calyx limb short, the, lobes about 1 mm. long, (Vene- 
zuela and Colombia)-. 50. C. splendgna 
Calyx limb 2 to 4 mm. lpng, the lobes usually . 1.5 mm. 
long (Peru) 52. C. ulei. 
Corolla 22 to SO mm. long. 
Bracts glabrous—. 53. C. capitata. 
Bracts pubescent without 54. C. nobilis. 
Nerves oriented well above the base (coherent 3 to 5 em,) . 
55. C. urbaniana. 
468 CONTRIBUTION'S FROM THE NATIONAL HERBARIUM 
1. Cavendishia complect ens Hem si. Biol. Centr. Amer. Bot. 8:272, 1881. 
A description of this species will be found In the earlier portion of this 
treatment dealing with Cavendishia in Central America (p. 448). 
Type locality: Costa Rica. Type collected by Endres (no. 257). 
Distribution: Western Cordillera of Colombia and Ecuador; also In Costa 
Rica; altitude 1,200 to 2,000 meters. 
Colombia. 
El Cauca: La Gailera, Micay Valley, KUlip 7909 (Y). 
Ecuador: Nono, Sodiro 92/36 (B). 
The specimens here cited seem Identical with those from Costa Rica, where 
the species is more common. It is an isolated species, not closely related to 
any other Cavendishia. 
2. Cavendishia compacta A. C. Smith, sp. nov. 
Frutex; lamlnis oblongis bast cuneatis vel subcordatts apice caudato- 
acumlnatis 7-pH-nerviis; Inflorescentla racemosa glabra; calycis tubo rugoso 
breve cyllndrico, limbo suberecto quam tubo longiore 5-lobato, lobis anguste 
Imbricatis; corolla subcylindrica; filamentis antherlsque compensanter in- 
aequalibus, fllamentls subdlstlnctis subglabris, tubulis quam loculis duplo 
longloribus. 
Shrub; branchlets terete, brownish, glabrous; petioles rugose, terete, 4 to 8 
mm. long; leaf blades thick-coriaceous, oblong, 11 to 15 cm. long, 6 to 6 cm. 
broad, broadly cuneate or subcordate at base, caudate-acuminate at apex 
(acumen 1.5 cm. long), entire and slightly revolute at margins, glabrous, 
sparsely punctate on both surfaces, 7-pll-nerved, the secondary nerves oriented 
above base to a distance of 2 or 3 cm., ascending, with the midnerve slightly 
Impressed above, prominent beneath, the veinlets copiously reticulate, slightly 
raised on botb surfaces; inflorescence axillary near ends of branchlets, racemose, 
10 to 15 flowered, glabrous in all parts; raehls subterete, swollen at bases of 
pedicels, 6 to 8 cm. long; pedicels strongly rugose, stout, 2 to 3 mm. in diameter, 
2 to 4 mm. long, each subtended by a coriaceous deciduous oblong bract about 
20 mm. long and 12 mm. broad; calyx tube strongly rugose, short-cylindrlc, 
about 3 mm, long and 4 mm. In diameter at anthesis; limb subcorlaceous, about 
5 mm. long Including lobes, the lobes ovate-oblong, rounded or obtuse, about 
5 mm. long, 3 to 4 mm, broad, thickened at margins, narrowly imbricate; 
corolla subcyllndric, 18 to 20 mm. long, about 5 mm. in diameter, the lobes 
oblong, subacute, 1.5 mm. long; stamens 15 to 16 mm. long; filaments sub- 
nigrescent, distinct or loosely coherent, sparsely pilose at distal margins, 2 to 
3 mm. and 4 to 5 mm. long, respectively; anther sacs slightly granular, about 
4.5 mm. long; tubules flexible, 10 mm. and 8.5 mm. long, respectively, opening 
by clefts nearly as long; stigma truncate or subpeltate; young fruit extremely 
rugose, up to 8 mm. in diameter, surmounted by the persistent imbricate calyx 
lobes. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected in the 
Cordillera of El Choc6, Intendencia of El ChocG, Colombia, altitude 1,800 meters, 
1851 to 1857, by J. Triana (no. 2699). 
Distribution : Andes of northwestern Colombia, altitude 1,400 to 1,800 meters. 
Colombia. 
BolIvab: Boca Antizales, on Hfo Esmernlda, Pennell 4488 (Y). 
This Is a species without close relatives, distinguished not only by its 
imbricate calyx lobes but also by its sh or t-pedl celled flowers and coriaceous 
bracts. The Pennell specimen is without flowers, but is accompanied by a few 
corollas of a Satyria, which I conclude belong to Permell 4484 (from the same 
locality), the type of Satyria latifolia. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAB 469 
3. Cavendishia llndaulana Hoer. Bot Jahrb. Engler 40: 330. 1909. 
Shrub; branchlets subterete, brownish, essentially glabrous; petioles rugose, 
stout, glabrous, 7 to 0 mm. long; leaf blades oblong, coriaceous, 13 to 18 cm. 
long, 4.5 to 6 cm. broad, cordate at base, obtusely acuminate at apex, entire and 
rcvolnte at margins, glabrous, pinnate-veined, the midvein stout, slightly raised 
above, very prominent beneath, the secondary veins 4 or 5 to a side, oriented in 
basal half, arcuate-ascending, nearly plane above, raised beneath, the veinlets 
copiously reticulate; inflorescence axillary near ends of branchlets, racemose, 
15 to 25 flowered; rachls subterete, violaceous, glabrous, 15 to 22 cm. long; 
pedicels rugose, slender, glabrous, about 5 mm. long when young, increasing to 
40 mm. at maturity, each subtended by a submembranous glabrous oblong 
bract about 2 cm. long and 1 cm. broad, bibracteolate near middle, the bractlets 
glabrous, oblong, 2 to 3 mm. long; calyx tube rugose, cylindric, about 5 mm. long 
and 3 mm. in diameter at anthesis, glabrous; limb erect, coriaceous, about 8 
mm. long including lobes, the lobes deltoid, subacute, 1.5 to 2 mm. long, callose- 
thickened; corolla narrowly cylindric, up to 25 mm. long, 3 to 4 mm. In diameter, 
densely pilose, the hairs pale, spreading, up to 0.5 mm. long; stamens 23 to 24 
mm. long; filaments castaneous, slender, distinct, sparsely puberulous ventrally, 
1 to 2 mm. and 9 mm. long, respectively; anther sacs slightly granular, 10 mm. 
and 8 mm. long, respectively; tubules flexible, scabridulous, 13 mm. and 10 mm. 
long, respectively; stigma truncate. 
Type locautt ; Frontino, Department of Antioqula, Colombia, altitude 800 
to 1,700 meters. Type collected by Lehmann (no. 7525). 
Distribution : Known only from the type collection. 
Colombia. 
AwnoQUfa: Frontino, Lehmann 7525 (B, type). 
This species and the following, although doubtless related to one another, are 
readily distinguished on key characters and are quite remote from other 
species. 
4. Cavendishia hispida A. C. Smith, sp. nov. 
Frutex; ramulis petiolisque decidue hispldo-piiosis; laminis oblongis basi 
truncatis vel leviter subcordatis apice acumlnatis subtus pilosis 7 ad 9 pli- 
nerviis; inflorescentia raeemosa basi bracteis oblongis deciduis instruct a; 
calycls tubo rugoso subcylindrico, limbo erecto quam tubo longlore 5-Iobato, 
lobis triangularibus catlosis; corolla cylindrica dense pubescente; fllamentis 
antherisque compensanter inaequalibus, fllamentis distlnctis subglabris, tubulis 
quam loculis duplo longiorlbus. 
Shrub; branchlets terete, deciduously pilose with pale brown hispid hairs 
about 2 mm. long; pedicels rugose, 6 to 10 mm. long, pilose as the branchlets; 
leaf blades oblong, 14 to 18 cm. long, 6.5 to 7.5 cm. broad, coriaceous, truncate 
or lightly subcordate at base, acuminate at apex, entire and narrowly revolute 
at margins, essentially glabrous above, pilose beneath with hairs like those 
of the branchlets, 7 to 9 pli-nerved, the secondary nerves oriented slightly 
above base, ascending, with the midnerve impressed above, strongly prominent 
beneath, the veinlets copiously reticulate, impressed above, raised beneath; 
inflorescence axillary, racemose, 15 to 25 flowered, deciduously bracteate at 
base; rachls subterete, glabrous, about 5 cm. long; pedicels strlate, 5 to 8 mm. 
long, glabrous, each subtended by a submembranous oblong bract about 15 mm. 
long, deciduously bibracteolate near base; calyx tube rugose, subcylindric, 
about 3 mm. long and 3 mm. in diameter at anthesis, glabrous; limb erect, cori- 
aceous, about 4 mm. long including lobes, the lobes triangular, subacute, about 
1.5 mm. long, callose thickened; corolla cylindric, 22 to 25 mm. long, 4 to 5 mm. 
in diameter, densely pubescent with spreading pale brown hairs about 1 mm. 
470 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
long, the lobes triangular, about 1.5 mm. long; stamens 20 to 21 mm. long; 
filaments dark castaneous, slender, distinct, glabrous or slightly pilose distally, 
2 mm. and 6 mm. long, respectively; anther sacs slightly granular, about 6 mm. 
long; tubules about 14 mm. and 10 mm. long respectively, opening by clefts 
nearly as long; style as long as corolla or slightly exserted, the stigma trun- 
cate or subpeltate. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected at Te- 
nant Intendencia of El Chocd, Colombia, altitude 250 meters, 1861 to 1857, by 
J. Triana (no. 2709). 
Distribution : Known only from the type collection. 
Allied to O. lindauiana, from which it differs by the hispid lower surface of 
the leaves and the comparatively short calyx limb, as well as In leaf venation. 
It is related also to the Costa Rlcan C. lonQiflora Donn. Smith. 
5. Cavendishla bomareoides A. O. Smith, sp. nov. 
Frutex; ramulis saepe subscandentibus dense pubescentibus; laminls ob- 
longis basi truncatls vel leviter cordatis aplce eaudato-acnminatis supra decldue 
puberulentls subtus constanter pllosis 7 ad 0 pli-nervils; inflorescentia race- 
mosa basi bracteis imbricatis glabris instruct a; floribus glabrls; calycis tubo 
rugoso, limbo erecto quam tubo longiore G lobato, lobis callosis; corolla sub- 
cylindrica, lobis callosis; fllamentis antherisque alternatim inaequalibus, flla- 
mentis distinctis puberulis, tubulis quam loculis longiorlbus. 
Shrub; branchlets subterete, stout, brownish, densely pubescent with pale 
brown spreading hairs up to 1 mm. long, becoming subglabrous; petioles sub- 
terete, pubescent as the branchlets, 4 to 7 mm. long; leaf blades oblong, coria- 
ceous, 0 to 17 cm. long, 4 to 5.5 cm. broad, truncate or lightly cordate at base, 
caudate-acuminate at apex, entire and slightly revolute at margins, puberulous 
above with brownish hairs up to 0.3 mm. long, becoming glabrous, persistently 
pilose beneath with spreading hairs about 0.7 mm. long, 7 to 9 pli-nerved, the 
secondary nerves oriented above base, with the mldnerve slightly impressed 
above, prominent beneath, the veinlets reticulate, slightly raised on both sur- 
faces; inflorescence terminal or axillary, racemose, 20 to 30 flowered, circum- 
scribed at base by numerous deciduous imbricate oblong-ovate papyraceous 
glabrous bracts up to 2.5 cm. long and 2 cm. broad; rachis angled,,glabrous, 
G to 7 cm. long at maturity; pedicels subrugose, glabrous, 7 to 12 mm. long, 
each subtended by a deciduous bract similar to those at base of racemes, 
blbracteolate near base with oblong bractlets up to 3 mm. long; calyx tube 
rugose, about 3 mm. long and 3.5 mm. in diameter at anthesis, glabrous; limb 
erect, cylindrlc, 5 to 6 mm. long including lobes, the lobes triangular, subacute, 
about 1 mm. long, callose-thickened at tip; corolla subcylindric, 28 to 30 mm. 
long, about 6 mm. in diameter, membranous, glabrous, the lobes triangular, 
subacute, about 1 mm. long, callose-thickened at tip; stamens about 27 mm. 
long; filaments castaneous, slender, distinct, puberulous distally within with 
pale lax hairs about 0.4 mm. long, 2 mm. and 8 mm. long, respectively; anther 
sacs slightly granular, 10 mm. and 8 mm. long, respectively; tubules flexible, 
16 mm. and 13 mm. long, respectively, opening by clefts nearly one-half their 
length; stigma truncate; young fruit extremely rugose, surmounted by the 
persistent calyx limb. 
Type in the herbarium of the New York Botanical Garden, collected on 
rocky stream bank in forest, Rio San Rafael, below Oerro Tatamfi, Department 
of Catdas, Colombia „ altitude 2,500 to 2,800 meters, September 7 to 11, 1922, by 
F. W. Pennell (no. 10402). 
DiSTEmtrTioN: Western Cordillera of Colombia and southern Darign, altitude 
500 to 2,800 meters. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 471 
Panama. 
Dabi^n ; Cerro de Garagarfi., Sambfl Basin, Pittier 5651 (N). 
Colombia. 
El Ohoo6: Dauro, Two 1172 (X). 
The three specimens above cited show some variation, but in all essential 
characters they seem to me conspecific. The Toro collection has the leaves 
cordate at base, slightly different in texture, and with less pubescence. This 
species and the four following, of which two also are here described for the 
first time, form a coherent group of the genus by virtue of their elongate calyx 
limb with thickened lobes. They are readily distinguished from one another 
by the characters indicated in the key. The northeastern Andes of Colombia 
have yielded a surprisingly large number of new species of this genus, but 
owing to the paucity of herbarium material from this rich region it is as yet 
impossible to say whether or not these are purely local in distribution. The 
present species is marked by having the branchlets and the petioles and lower 
surface of the leaves pilose. 
6. Cavendishia splachnoides A. O. Smith, sp. nov. 
Frutex; laminls oblong! s basl truncatls vel levlter subcordatis apice caudato- 
acumlnatls glabris plnnatinerviis; infiorescentla racemosa glabra basl decidue 
bracteata; calycis tubo rugoso valde apophysato, limbo erecto quam tubo triplo 
longiore, lobis callosis; corolla subcylindrica; filamentis antherlsque compen- 
santer inaequalibus, tubulis quam loculis longiorlbus. 
Shrub; branchlets subterete, brownish, glabrous; petioles slightly rugose, 5 to 
7 mm. long, sparsely pilose ventrally or glabrous; leaf blades coriaceous, oblong, 
9 to 16 cm. long, 3.5 to 6 cm. broad, truncate or lightly subcordate at base, 
caudate-acuminate at apex, entire and narrowly revolute at margins, glabrous, 
pinnate-veined, the midveln slightly Impressed or plane above, prominent be- 
neath, the secondary veins 2 or 3 to a side, arcuate-ascending, slightly im- 
pressed above, raised beneath, the veinlets reticulate, slightly raised on both 
surfaces; inflorescence subtermlnal, racemose, 18 to 30 flowered, declduously 
bracteate at base, glabrous in all parts; rachis angled, 5 to 9 cm. long; pedicels 
subterete, 17 to 20 mm. long, each subtended by a deciduous papyraceous oblong 
bract up to 1.5 cm. long and 1 cm. broad, declduously bibracteolate near base 
with bractlets up to 3 mm. long, slightly swollen dlstally; calyx subcylindric, 
strongly apophysato at base, the tube strongly rugose, about 2 mm. long and 6 
mm. in diameter across the apophysis at anthesls, the limb erect, 6 to 7 mm. 
long including lobes, the lobes triangular, acute, about 1.5 mm. long, callose- 
tipped; corolla subcylindrfc, membranous, 25 to 30 mm. long, 5 to 6 mm. In 
diameter; stamens about 22 mm. long; filaments castaneous, Imperfect in our 
specimen; anther sacs slightly granular, about 8 mm. and 6 mm. long, re- 
spectively ; tubules flexible, pale red, about 12 mm. and 10 mm. long, respectively, 
opening by clefts more than half as long; stigma truncate. 
Type in the U. S. National Herbarium, no. 715,929, collected on Cerro de 
Garagarfi,, Sambfi Basin, southern Dari&t, Panama, altitude 500 to 974 meters, 
February 7, 1912, by H. Pittier (no. 5647). Another collection from the same 
locality Is Pittier 5659 (N). 
DiBiBXBUTXon: Known only from the type locality. 
In no other species that I have seen is the calyx so strikingly apophysate as 
here; the specific name refers to Splaohnum, a genus of mosses with an 
apophysate capsule. The above flower dimensions are taken from the only 
available flower. There is probably some variation. It is not possible to say 
whether the filaments are free or coherent, pubescent or glabrous. 
472 CONTRIBUTIONS FROM THE NATIONAL. HERBARIUM 
7. Cavendishia amalflensis Mansf. NotizbL. But. Gart. Berlin 9:440. 1925. 
Shrub with elongate branches; branchlets terete, cinereous or brownish, 
glabrous; petioles rugose, glabrous, 4 to 5 mm. long; leaf blades oblong, cori? 
aceous, glabrous, somewhat shining, 13 to 16 cm. long, 3 to 5 cm. broad, sub- 
cordate at base, long-acuminate at apex, entire at margins, pinnate-veined, the 
mid vein slightly raised above, prominent beneath, the secondary veins 3 or 4 
to a side, the basal pair ascending, the upper pair subspreading, nearly plane 
above, slightly raised beneath, the veinlets reticulate, slightly raised above; 
inflorescence axillary near ends of branchlets, racemose, 8 to 12 flowered, 
glabrous in all parts, deeiduously brae tea te at base; rachis subterete, striate, 
about 3 cm. long; pedicels striate, 5 to 10 mm. long, each subtended by a decidu- 
ous membranous oblong bract up to 20 mm, long and 12 mm. broad, minutely 
bibracteolate near base, swollen d is tally; calyx tube subrugose, slightly 
apophysate, about 1.5 mm. long and 4 mm. in diameter at an thesis; limb erect, 
about 4 mm. long including lobes, the lobes triangular, subacute, 1 to 1.5 mm. 
long, callose-thickened at tip; corolla submembranous, cyllndric, about 18 mm. 
long and 5 mm. in diameter, the lobes triangular, about 1.6 mm. long; stamens 
equal, about 16 mm, long; filaments membranous, loosely coherent, castaneous, 
essentially glabrous, about 2 mm. and 5 mm. long, respectively; anther sacs 
slightly granular, about 5 mm. long; tubules flexible, scabridulous, 0 mm. and 
7 mm. long, respectively; stigma truncate. 
Typh LOCALITY: Amalfl, Department of Antloqula, Colombia, altitude about 
1,750 meters. Type collected by Kalbreyer (no. 1669). 
Distribution : Known only from the type collection. 
Colombia. 
AntioquIa : Amalfl, Kalbreyer 1660 (B, type, K). 
8. Cavendishla purdiei A. C. Smith, sp. nov. 
Frutex gracilis; laminis oblongis vel lanceolato-oblongis basi truncatls vel 
leviter subcordatls apice longe acuminatls glabris 5-pli-nervils; lnflorescentia 
subfasciculata basl bracteis submembranaceis oblongis instructa; pedicellis 
apice dentes minimos gerentibus; calycis tubo rugoso, limbo erecto quam tubo 
longiore, lobis triangularibus apice cullosis; corolla subcylindrica; fllamentis 
antherisque compensanter inaequalibus, fllamentis distiactis subglabris, tubulis 
quam loculls duplo lougioribus. 
Slender shrub; branchlets terete, striate, brownish, minutely puberulous, be- 
coming glabrous; petioles slender, 2 to 3 mm. long, essentially glabrous; leaf 
blades oblong or lanceolate-oblong, 5 to 7 cm. long, 1.2 to 2 cm. broad, truncate 
or lightly subcordate at base, long-acuminate at apex, entire at margins, gla- 
brous, thin-coriaceous, 5-pli-nerved, the secondary nerves oriented above base, 
sharply ascending, with the midnerve slightly impressed above, raised beneath, 
the veinlets copiously reticulate, slightly raised above, prominent beneath; 
inflorescence axillary near ends of branchlets, subfasciculate, 2 to 5 flowered, 
circumscribed at base by several submembranous oblong bracts about 2 mm 
long, glabrous in all parts; pedicels terete, 3 to 5 mm. long, bracteolate (?), 
swollen distally and surmounted at apex by a ring of minute cartilaginous 
teeth; calyx tube rugose, subcylindrie, about 2 mm. long and 1.5 mm. in diam- 
eter at anthesis; limb erect, subcoriaceous, about 3 mm. long including lobes, 
the lobes triangular, about 1.5 mm. long and broad, callose-thickened at tip; 
corolla membranous, subcylindrie, 13 to 15 mm. long, about 3 mm. in diameter, 
the lobes triangular, about 1 mm. long; stamens equal, about 10 mm. long; 
filaments castaneous, distinct, essentially glabrous, about 1.5 mm. and 4 mm. 
long, respectively; anthers about 9 mm. and 7 mm. long, respectively, the sacs 
! 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 473 
slightly granular, about 3 mm. long, the tubules opening by clefts most of their 
length; stigma truncate. 
Type In the herbarium of the Royal Botanic Gardens, Kew, collected In 
Colombia by W. Purdie. 
Distribution: Unknown; the type, which is the only specimen yet seen, is 
without precise data. 
Related to the preceding but distinguished by the smaller size of all Its parts. 
It is unfortunate that the specimen is In rather poor condition and that the 
exact locality Is unknown, but there Is no doubt that it represents a previously 
undescribed species. 
9. Cavendishia duldae A. C. Smith, Bull. Torrey Club 58:443. 1931. 
Low shrub with slender branches; branchlets terete, glabrous; petioles stout, 
4 to 7 mm. long, glabrous or subpuberulous; leaf blades coriaceous, ovate-oblong 
or ovate-lanceolate, 6 to 10 cm. long, 3 to 5.5 cm. broad, glabrous, rounded to 
a subcordate or truncate base, acuminate at apex, entire and somewhat reflexed 
at margins, 5-pli-nerved, the primary nerves impressed above, prominent beneath, 
the velnlets reticulate, raised above, plane beneath; flowers in terminal racemes, 
the rachls subterete, glabrous, up to 11 cm. long when mature; bracts papy- 
raceous, pale red, glabrous, ovate, 15 to 25 mm. long, 12 to 15 mm. broad, 
rounded at apex, entire or crenulate at margins, with 5 to 8 subparallel veins, 
deciduous; pedicels stout, subterete, glabrous, 8 to 12 mm. long, bracteolate 
near base; calyx tube cylindric, about 2 mm. long, rugose at base; limb 
campanulate, 2 to 2.5 mm. long, the lobes triangular, subacute, cartilaginous; 
corolla membraneceous, cylindric, 18 to 22 mm. long, about 3 mm. in diameter 
at base; stamens 16 to 17 mm. long, the filaments and anthers compensatlngly 
unequal; filaments loosely connate at base, glabrous or sparsely short-pilose, 
2 mm. and 3 to 4 mm. long, respectively; anther sacs slightly granular, about 
5.5 mm. and 4.5 mm. long, respectively; tubules membranous, about 11 mm. and 
9 mm. long, respectively; style shorter than corolla, the stigma truncate. 
Type locality : Summit of Mount Duida, State of Amazonas, Venezuela, 
altitude about 1,100 meters. Type collected by G. H. H. Tate (no. 1048). 
Distribution : Pacaralma Mountains of southern Venezuela and British 
Guiana. 
British Guiana: (Probably vicinity of Mount Roraima), Sehomburffk 1018 (K). 
V EJVEZUEEiA* 
Amazonas: Summit of Mount Duida, Tate 703 (T), 1048 (V, type). Cerro 
Yapacana, upper Rfo Orinoco, 1,000 to 1,200 meters, Holt d Blake 
708 (N, T). 
Bb a zilian-Venezuelan Boundary : Western foothills of Serra Imerl, near 
Salto de Hufi, Holt & Blake 489 (N, Y). 
This beautiful plant is the only species of Cavendishia yet known from the 
Pacaralma Mountains; it Is to be anticipated from the region between Mount 
Roraima and Mount Duida. The Schomburgk specimen has slightly narrower 
leaves. 
From its allies the present species is distinguished by its elongate Inflorescence 
and pilose long filaments, as well as by leaf characters. 
10. Cavendishia adenophora Mansf. Notizbl. Bot Gart. Berlin 9:439. 1925. 
Subscandent shrub; branchlets subterete or angled, brownish, glabrous; 
petioles subrugose, 3 to 10 mm. long; leaf blades thick-coriaceous, ovate or 
oblong-ovate, 7 to 12 cm. long, 3 to 8 cm. broad, truncate, cuneate or rarely 
subcordate at base, obtuse or subacute at apex, entire and slightly revolute at 
margins, glabrous, 5 to 7 pll-nerved, the secondary nerves oriented above base, 
with the mldnerve slightly impressed above, prominent beneath, the velnlets 
V 
} 
474 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
copiously reticulate, slightly raised on both surfaces; inflorescence terminal 
or axillary, appearing subfasciculate (rachis stout, not more than 1 cm. long), 
8 to 15 flowered, circumscribed at base and enveloped when young by numerous 
imbricate obovate papyraceous bracts up to 3 cm. long and 2 cm. broad; 
pedicels subterete, glabrous, 5 to 8 mm. long, each subtended by a bract similar 
in texture to those at base of inflorescence but narrower and persistently 
margined with numerous stalked glands (glands nigrescent, subspherical, 
about 0.3 mm. in diameter, supported on stalks about 0.4 mm. long), decid- 
uously bibracteolate near base; calyx tube strongly rugose, coriaceous, sub- 
cylindrlc, about 5 mm. long and 5 mm. in diameter at anthesis; limb erect, 
about 5 mm. long including lobes, the lobes triangular, acute, about 1 mm. 
long, each flanked by two linear glands; corolla subcylindric, about 19 mm. long 
and 5 mm. in diameter, the lobes triangular, subacute, about 1 mm. long; 
stamens about 15 mm. long; filaments castaneous, distinct or loosely coherent 
at base, sparsely puberulous within and at margins distally, 2.5 mm. and 7 mm. 
long, respectively; anther sacs slightly granular, 5 to 6 mm. long; tubules 
wide, 8 mm. and 5 mm. long, respectively; stigma peltate. 
Type locality : Caldera, Department of Antioqula, Colombia, altitude 1,500 
to 1,850 meters. Type collected by Kalbreyer (no. 1306), 
Distribution: Western and Central Cordilleras of Colombia, altitude 1,500 to 
2,800 meters. 
Colombia: Datce 846 (N). Hatico, Lchmann K168 (K). Las Juntas, 
Lehmann K169 (K). Western Cordillera, Dawe 849 (K, Y). 
AntioquIa : Jcrvisc (K). Caldera, Kalbreyer 1306 (B, type, K). 
Caidas: Rio San Rafael, below CerroTatamfi, Pennell 10401 (Y). 
El Valle: La Cumbre, Pennell & Killip 5766 (N, Y); Killip 11376 <Y). 
By its glandular-margined bracts and its nitid coriaceous leaves this species 
is immediately distinguished from its allies. The specimens from La Cumbre 
differ from typical material in having the leaf apex caudate acuminate and 
the leaves darker in color. The same glandular bracts and characteristic calyx 
are evidenced, however. The calyx is said to be pink, and the corolla violet 
or " blue and white." 
11. Cavendishia venosa A. C. Smith, sp. nov. 
Frutex gracilis; laminis papyraceis oblongo-lanceolatis basi cuneatis apice 
longe acuminntis glabris 5-pli-nerviis; inflorescentia breviter rncemosa basi 
bracteis numerosis oblongo-spathulatis manifesto venosis instructa; floribus 
glabris; calycis limbo parce glanduloso quam tubo duplo longiore; corolla glabra 
vel parce glandulosa; staminibus brevibus alternatim inaequalibus, tubulis 
loculos subaequantibus. 
Slender shrub; branchlets terete, rugose, essentially glabrous; petioles 
slender, subrugose, glabrous, 2 to 3 mm. long; leaf blades papyraceous, oblong- 
lanceolate, 7 to 10 cm. long, 2 to 3 cm. broad, cuneate at base, long-acuminate 
at apex, entire at margins, glabrous, 5-nerved from base, the nerves nearly 
plane above, raised beneath, the veinlets copiously reticulate, raised on both 
surfaces; inflorescence axillary or subterminal, short-racemose (rachis stout, 
5 to 10 mm. long), 8 to 15 flowered, circumscribed at base and enveloped when 
young by numerous imbricate, oblong-spatulate, submembranous, longitudi- 
nally veined bracts up to 4 cm. long and 1 cm. broad; pedicels terete, glabrous, 
4 to 6 mm, long, each subtended by a bract similar to those at base of in- 
florescence; calyx tube coriaceous, campanulate or subglobose, about 2.5 mm. 
in diameter, glabrous; limb erect, sparsely nigrescent, glandular dotted, about 
6.5 mm. long Including lobes, the lobes elongate-triangular, about 2 mm. long, 
sparsely glandular-margined, the sinuses rounded; corolla submembranous, gla- 
P 
I 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 475 
brous or sparsely glandular-dotted, about 26 mm. long and 3 mm. In diameter, 
the lobes triangular, about 1 mm. long; stamens Incomplete In our specimens 
but apparently about one-third as long as corolla, the short anthers about 7 mm. 
long, the tubules about half as long, opening by elongate clefts, the long anthers 
and style not seen. 
Type In the herbarium of the Royal Botanic Gardens, Kew, collected in 
Colombia or Ecuador by E. Andrg. 
Distribution : Andes of Colombia and Ecuador, probably limited to the region 
between Popay&n and Quito. 
Colombia. 
Nabino: Altaquer, Andr6 (K). 
Ecuador: Bio Pilat6n, Sodiro 92/20 (B), Armada, Andr$ 3430 (K). 
The specimen designated as the type is the best of the above, although it is 
completely without geographic data. The species is keyed with the following 
because of the presence of minute glands upon the calyx, although the two 
are not very closely allied naturally. The present species bears a close super- 
ficial resemblance to C. purdiei, from which it can readily be distinguished by 
the lack of callose-tipped calyx lobes and the presence of glands. The thin 
obviously veined bracts are also characteristic of C. venosa. 
12. Cavendishia macrocephala A. C. Smith, sp. nov. 
Frutex robustus; laminls oblongis basi truncatls aplce acuminatis glabrls 
5 ad 7-pli-nerviis; infiorescentia breviter racemosa basi bract els magnis oblongis 
subcorlaceis instructa; floribus glabrls; calycis parce nigrescento-glandulosi 
limbo quam tubo longiore; corolla cylindriea; ft lament is antherisque compen- 
santer inaequalibus, filament is puberulentis, tubulis quam loculis 2 ad 3-plo 
longioribus. 
Robust shrub; branchlets angled, brownish, essentially glabrous; petioles 
subrugose, glabrous, 5 to 8 mm. long; leaf blades oblong, 12 to 20 cm. long, 
4.5 to 6 cm. broad, truncate or lightly subcordate at base, acuminate at apex, 
entire and slightly revolute at margins, coriaceous, glabrous, 5 to 7 pli-nerved, 
the secondary nerves oriented near base, with the midnerve impressed above, 
prominent beneath, the veinlets reticulate, plane or slightly raised on both sur- 
faces; inflorescence axillary, short-racemose, appearing subfasclculate (rachis 
stout, rarely up to 1 cm. in length), 8 to 12 flowered, circumscribed at base 
and enveloped when young by numerous imbricate subcoriaceous oblong bracts 
up to 4 cm. long and 2 cm. broad; pedicels rugose, glabrous, 5 to 8 mm. long, 
each bracteate at base and bibracteolate near base, the bractlets lanceolate, 
3 to 7 mm. long; calyx tube prismatic, coriaceous, about 4 mm. long and 3 mm. 
in diameter at an thesis, glabrous or sparsely glandular; limb erect, 6 to 7 mm. 
long, sparsely nigrescent glandular-dotted, the lobes lanceolate-triangular, 3 
mm. long, 1.5 to 2 mm. broad, membranous at margins and sparsely glandular- 
fimbriate; corolla cylindric, thin-car nose, glabrous, 22 to 25 mm. long, 4 to 5 
mm. in diameter, the lobes triangular, about 1 mm. long; stamens about 22 mm. 
long; filaments dark castaneous, loosely coherent at base, puberulous within 
with hairs about 0.2 mm. long, 3 mm. and 7 mm. long, respectively; anther sacs 
slightly granular, about 5 mm. long; tubules wide, flexible, 16 mm. and 11 mm. 
long, respectively; stigma truncate. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected at 
La Ceja, Quindfo Region, Department of Tolima, Colombia, altitude 3,200 
meters, March 10, 1876, by E. Andrg (no. 2255). 
Distribution : Central Cordillera of Colombia. 
COLOMBIA: Linden 949 (K). 
A robust plant, readily identified by the minute glands of the calyx, the large 
bracts, and the ample leaves. 
476 CONTRIBUTION'S FROM THE NATIONAL HERBARIUM 
13. C&vendishia grandifolia Hoer. Bot. Jahrb. Engler 42 : 821. 1909. 
Robust shrub; branchlets stout, angled, brownish, essentially glabrous; 
petioles strongly rugose, stout, about 4 mm. in diameter, 18 to 23 mm. long, 
glabrous; leaf blades thick-coriaceous, oblong or ovate-oblong, 30 to 40 cm. 
long, 12 to 16 cm. broad, cuneate at base, sharp-acuminate at apex, entire 
and slightly revolute at margins, on both surfaces glabrous or sparsely pilose 
with pale stiff hairs about 0.7 mm. long, more noticeably pilose beneath, 
7-nerved from base, the principal nerves stout, slightly raised above, prom- 
inent beneath, each pinnate-nerved with several pairs of ascending or spread- 
ing secondary nerves raised on both surfaces, the veinlets reticulate, slightly 
raised on both surfaces; inflorescence axillary, long-racemose, deciduously 
bracteate at base, essentially glabrous In all parts; rachis stout, striate, 15 
to 25 cm. long; pedicels strongly rugose, 20 to 25 mm. long, deciduously 
bibracteolate, swollen distally; calyx strongly rugose, the tube apophysate, 
1 to 1.5 mm. long, 5 to 6 mm. in diameter, the limb erect, about 5 mm. long 
including lobes, the lobes triangular, thickened at margins, about 1.5 mm. 
long and 3 mm. across; other flower parts not seen, but described as: " corolla 
cyHndrico-tubulosa, membranaceo-carnosa, 3.0 cm. longa et 0.4 cm. dlam., 5-den- 
tata; dentes triangulares, obtusi, induplicato-valvati; stamina 10 corolla paulo 
breviora superne subaequilonga, filamentis basi in tubum connatis, 0.1 et 
0.9 cm. longis; antherarum inferiores partes 1.3 et 1.1 cm. longae tubulis 2 
dlstinctis 1.5 et 0.9 cm. longis pollen rlma longa demittentlbus; ovarlum 5-lo- 
culare; stylus flliformis stlgmate truncatulo; discus cupuliformis." 
Type locality : Angamarca, near Pangoa, Ecuador. Type collected by 
Sodiro (no. 92/18c). 
Distribution : Known only from the type collection. 
Ecuador: Angamarca, near Pangoa, Sodiro 92/18c (B, type). 
The magnificent large leaves of this species distinguish it immediately from 
all others of tbe genus. 
14. Cavendishia tarapotana (Meissn.) Benth. & Hook. Gen, PI. 2 :570. 1876. 
Thtbaudia tarapotana Meissn. in Mart. FI. Bras. 7:126. 1863. 
Chupalon tarapotanum Kuntze, Rev. Gen. PI. 2:384. 1891. 
Shrub; branchlets terete, brownish, slender, glabrous; petioles subterete, 
glabrous, 7 to 9 mm. long; leaf blades thick-coriaceous, oblong, 9 to 13 cm. 
long, 3.5 to 5 cm. broad, cuneate at base, caudate-acuminate at apex (acumen 
about 1.5 cm. long), entire and slightly revolute at margins, glabrous, 6-pli- 
nerved, tbe secondary nerves oriented near base, with the mid nerve slightly 
impressed above, prominent beneath, the veinlets reticulate, plane on both 
surfaces; inflorescence axillary or terminal, laxly racemose, 8 to 12-flowered, 
deciduously bracteate at base, essentially glabrous In all parts; rachis terete, 
somewhat flexuose, 3 to 6 cm. long; pedicels subterete, slightly rugose, 8 to 14 
mm. long, each subtended by a deciduous oblong-obovate papyraceous bract 
up to 1.5 cm. long and 1 cm. broad, deciduously bibracteolate near base; calyx 
tube subcyllndric, slightly apophysate at base and produced below articulation, 
about 2 mm. long and 3.5 mm. in diameter at an thesis; limb erect, about 5 mm. 
long including lobes, the lobes triangular, subacute, 1.5 to 2 mm. long, laterally 
callose-margined; corolla subcyllndric, 18 to 19 mm. long, about 4 mm. in 
diameter, contracted distally, the lobes triangular, subacute, about 1 mm. long; 
stamens about 13 mm. and 14 mm. long, respectively; filaments dark castaneous, 
membranous, distinct, glabrous or sparsely puberulous within distally, 3 mm. 
and 7 mm, long, respectively; anther sacs slightly granular, 4 to 5 mm. long; 
tubules flexible, 6 mm. and 4.5 mm. long, respectively; stigma peltate; young 
SMITH—AMERICAN SPECIES OF THIBAUDIBAE 477 
fruit cylindric-subspherieal, about 5 mm. in diameter, surmounted by the 
persistent withered calyx limb. 
Type locality : Bio Mayo, near Tarapoto, Department of San Martin, Peru. 
Type collected by Spruce (no. 4302). 
Distribution : Rare, on the eastern slopes of the Andes, Colombia to Peru, 
altitude 1,200 to 1,700 meters. 
Colombia. 
Nobth dh Santandeb : Batatal, between Oca&a and Pamplona, Kalbreyer 
905 (B, K). 
Ecuador : Spruce 5074 (Q, K, Y). 
Tunoueagua : Palmera, Bio Pastaza, Tate 670 (N). 
PifiBU* 
Saw MabtIn : Bfo Mayo, near Tarapoto, Spruce 4302 (K, type, Y). 
A very well marked species, of unusual distribution; the Colombian speci- 
mens appear quite identical with those from farther south. The calyx limb 
is only slightly longer than the tube, yet the affinities of the plant appear 
to be in this section of the genus. 
15. Cavendlshia engleriana Hoer. Bot, Jahrb. Engler 42:327. 1909. 
Subscandent shrub; branchlets subterete, striate, brownish, glabrous; petioles 
terete, glabrous, 6 to 8 mm. long; leaf blades coriaceous, glabrous, oblong, 10 
to 14 cm. long, 3 to 4 cm. broad, broadly cuneate or truncate at base, caudate- 
acuminate at apex, entire and narrowly revolute at margins, 5-nerved from base, 
the second and third nerves ascending to apex, the fourth and fifth nerves 
close to margins about half their length, with the mi drier ve plane or slightly 
impressed above, prominent beneath, the veinlets reticulate, raised on both 
surfaces; inflorescence axillary, subfasciculate (rachls stout, not more than 
5 mm. long), 5 to 8 flowered, circumscribed at base and enveloped when young 
by numerous Imbricate submembranous ovate-obl<mg bracts up to 3 cm. long 
and 1.5 cm. broad; pedicels stramineous, sharply axgled, stout, 10 to 13 mm. long, 
bearing numerous short-stalked glands, each subtended by a deciduous bract, 
slightly swollen distally; calyx tube strongly rugose, coriaceous, glabrous, much 
enlarged, broadly campanula te, 3 mm. long, 6 to 7 mm. in diameter at anthesis; 
limb erect, coriaceous, about 7 mm. long Including lobes, the lobes deltoid, acute, 
1.5 to 2 mm. long, nigrescent and callose-thlckened at margins; corolla thin- 
carnose, glabrous, cylindric, about 30 mm. long and 4 mm. in diameter; stamens 
27 to 28 mm. long; filaments castaneous, distinct, sparsely pilose distally, 1.5 
mm. and 10 to 11 mm. long, respectively; anther sacs granular, 9 to 10 mm. Long; 
tubules scabridulous, 18 mm. and 9 mm. long, respectively. 
Ttph locality : Bio PilatOn, Ecuador. Type collected by Sodiro (no. 92/19, 
in part). 
DISTRIBUTION: Known only from the type collection. 
Ecjuadob: Rio Pilat6n, Sodiro 92/19, in part (B, type). 
Very closely related to the following, from which it is distinguished by the 
glandular pedicels, the extraordinarily rugose calyces, and the slightly narrower 
leaves. 
16. Cavendlshia gilgiana Hoer. Bot Jahrb. Engler 42:327. 1909. 
Robust shrub; branchlets slender, subterete, brownish, glabrous; petioles 
subrugose, terete, 6 to 9 mm. long; leaf blades oblong, coriaceous, glabrous, 12 to 
16 cm. long, 4 to 6.5 cm. broad, cuneate at base, caudate-acuminate at apex 
(acumen 2 to 3 cm. long), entire and slightly revolute at margins, 5-pli-nerved, 
the secondary nerves oriented near base (second and third nerves ascending 
to apex), with the midnerve slightly impressed above, prominent beneath, the 
478 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
veinletB reticulate, plane or slightly raised on both surfaces; inflorescence 
axillary, appearing subfasclculate (rachis about 1 cm. long), 5 to 10 flowered, 
circumscribed at base and enveloped when young by several imbricate papy- 
raceous oblong-ovate bracts up to 3 cm. long and 2 cm. broad; pedicels rugose, 
10 1:o 15 mm. long, each subtended by a large bract, deciduously bibracteolate 
near base, the bractlets lanceolate, about 4 mm. long; calyx tube rugose, 
short-cyllndric, about 3 mm. long and 5 mm. in diameter at anthesis; limb 
erect, about 6 mm. long including lobes, the lobes triangular, about 1 mm. long 
and 3 mm. broad, thick-margined; corolla thin-carnose, cylindric, about 25 mm. 
long and 4 mm. in diameter, the lobes triangular, 1.5 mm. long; stamens 22 
to 23 mm. long; filaments castaneous, distinct, sparsely puberulous within, 2 
mm. and 6 to 7 mm. long, respectively; anther sacs slightly granular, 5 to 6 
mm. long; tubules membranous, flexible, 16 mm. and 11 mm. long, respectively; 
stigma truncate or subpeltate. 
Type LOCALITY: Alaspongo, Mount Pichincha, Province of Pichincha, Ecuador. 
Type collected by Sodiro (no. 92/18c). 
DISTRIBUTION: Andes of northern Ecuador (and southern Colombia?). 
Colombia ok Ecuador: Mindo, Andri 3841 (K). Piedra ancha, Andr4 3458 (K). 
Ecuador: Napa, Sodiro 92/19 (B, in part). 
Pichincha: Alaspongo, Mount Pichincha, Sodiro 92/18c (B, type). 
Probably this species is more remote from the following than is indicated 
in the key. However, they bear a strong superficial resemblance to each other 
and appear distinguishable only on points of degree. 
17. Cavendishia kalbreyeri Mansf. Notlzbl. Bot. Gart. Berlin 9:441. 1925. 
Subscandent shrub; branchlets subterete, strlate, slender, glabrous; petioles 
subnlgrescent, terete, 4 to 5 mm. long; leaf blades coriaceous, glabrous, oblong, 
10 to 12 cm. long, 2.5 to 3.5 cm. broad, cuneate or subattenuate at base, long- 
acuminate at apex, entire atznargins, 5-pli-nerved, the secondary nerves ascend- 
ing, oriented slightly above base, with the mldnerve nearly plane above, raised 
beneath, the velnlets reticulate, plane on both surfaces; Inflorescence axillary, 
subfasclculate (peduncle stout, not more than 5 mm. long), 4 to 8 flowered, 
circumscribed at base and enveloped when young by numerous submembra- 
nous oblong bracts up to 3 cm. long and 1 cm. broad, glabrous in all parts; 
pedicels rugose, 5 to 7 mm. long, each subtended by a large bract, bibracteo- 
late near base, the bractlets oblong-lanceolate, 2 mm. long, deciduously gland- 
ular-margined; calyx tube coriaceous, subcylindric, about 3.5 mm. long and 4 
mm. in diameter at anthesis; limb erect, about 6 mm. long Including lobes, 
the lobes deltoid, acute, about 2 mm. long, thickened at margins; corolla sub- 
membranous, cylindric, up to 23 mm. long and 4 mm. In diameter, the lobes 
about 1 mm. long; stamens about 17 mm. long; filaments dark castaneous, dis- 
tinct, glabrous or sparsely puberulous within, 2 mm. and 5 mm. long, respec- 
tively ; anther sacs slightly granular, 5 to 6 mm. long; tubules submembranous, 
scabrldulous, 11 to 12 mm. and 7 to 8 mm. long, respectively; stigma subpeltate. 
Type locality : San Jos6, Department of Autioqufa, Colombia, altitude about 
2,900 meters. Type collected by Kalbreyer (no. 1620). 
Distbibution : Known only from the type collection. 
Colombia. 
AiTTiOQufa : San Jos6, Kalbreyer 1620 (B, type, K). 
18. Cavendishia subamplexicaulis A. C. Smith, sp. no v. 
Frutex humllis; lamlnis corlacels subscssilibus oblongis bast cordatis sub- 
amplexicaulibusque apice obtusis pli-nervlis; inflorescentia longe racemosa 
glabra ubique decidue bracteata; calycis rugosi subapophysati limbo tubum 
SMITH—AMERICAN SPECIES Of THIBAUDIEAE 479 
aequante, lobis apiculatls; corolla subcylindrica; fetaminibus alternatlm levi- 
ter inaequalibug, filamentis distinctis ad margines pllosis, tubulis quam loculis 
panllo lougiorlbus. 
Low shrub; branchlets snbterete, brownish, glabrous; petioles sub terete, 
glabrous, 2 to 3 nun. long; leaf blades coriaceous, appearing sessile, oblong, 
7 to 10 cm. long, 3 to 6 cm. broad, strongly cordate and subamplextcaul at base, 
obtuse at apex, entire at margins, glabrous, sparsely punctate beneath, pli- 
nerved, the lateral veins 4 to 6 to a side, the basal pairs spreading, the upper 
pairs oriented near base, ascending, with the midnerve nearly plane above, 
raised beneath, the veinlets reticulate, slightly raised on both surfaces; in* 
florescence terminal or axillary, racemose, 15 to 30 flowered, declduously brae- 
teate at base, glabrous in all parts; rachis stout, 3 to 4 mm. in diameter, 
terete, 7 to 9 cm. long at maturity; pedicels 3 or 4 per centimeter of rachis, 
subterete, 10 to 15 mm. long, each subtended by a deciduous oblong or obo- 
vate papyraceous bract up to 2.5 cm, long and 1.2 cm. broad, deciduously 
bibracteolate near base with ovate-oblong bractlets about 5 mm. long, swollen 
distally; calyx slightly rugose, greenish yellow, slightly apophysate at base, the 
tube short-cylindrie, about 3 mm. long and 4 to 5 mm. in diameter at anthesis, 
the limb erect, about 3 mm. long including lobes, the lobes triangular, aplculate, 
less than 1 mm. long; corolla subcylindric, "white, distally pink," 13 to 15 mm. 
long, 4 to 5 mm. in diameter, contracted distally, the lobes triangular, subacute, 
about 1 mm. long; stamens about 13 mm. and 14 mm. long, respectively; fila- 
ments castaneous, distinct, pilose at margins with white hairs about 0.2 mm. 
long, 2 mm. and 4 to 5 mm. long, respectively; anther sacs nearly smooth, 
about 5.5 mm. long; tubules wide, about 6.5 mm. and 5.5 mm. long, respectively; 
stigma peltate; young fruit subspherical, fleshy, up to 7 mm, in diameter. 
Type in the herbarium of the New York Botanical Garden, collected in shrub 
zone below P&ramo de Ghaquiro, Cordillera Occidental, Department of Bolivar, 
Colombia, altitude 2,800 to 3,100 meters, February 24, 1918, by F. W. Penneil 
(no. 4299). 
Distribution : Andes of northwestern Colombia, altitude 2,400 to 3,100 meters, 
Colombia. 
BolIvab; Cascada Chorron, south of Antlzales, Pennett 4378 (Y). 
A beautiful plant, of dubious relationship, but readily identified by its cor- 
date-based, subamplexicaul leaves. 
19. Cavendishia spicata A. C. Smith, sp. no v. 
Arbor parva pulcherrima; ramulis petiollsque decldue puberulis; laminis 
oblongis basi truncatis vel subcuneatis apice obtuse breviter acuminatls subtus 
minute decidue pllosls 5-pU-nervils; inflorescentla graciliter et longe racemosa 
basl bracteis parvls instructs.; rhachidlbus pedicellisque minute puberulis; 
floribus glabris; calycls limbo tubum subaequante; corolla subcylindrica; fila- 
mentis antherisque compensanter inaequallbus, antherls parvls, tubulls quam 
loculis duplo longioribus. 
Low tree; branchlets subterete, cinereous, short-puberulous or glabrous; ped- 
icels subterete, short-puberulous when young, 3 to 5 mm. long; leaf blades 
coriaceous, oblong, 5 to 6 cm. long, 2 to 8 cm. broad, truncate or subcuneate at 
base, obtusely short-acuminate at apex, entire and re volute at margins, glabrous 
or minutely and sparsely pilose above, pilose beneath with sparse minute as- 
cending nigrescent hairs about 0.2 mm. long, becoming glabrous, 5-pli-nerved, 
the secondary nerves oriented above base, with the midnerve slightly im- 
pressed above, prominent beneath, the velnlets obscurely reticulate; inflor- 
escence axillary, slenderly racemose, 40 to 70 flowered, bracteate at base with 
84377—32 12 
480 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
several minute, imbricate, broadly ovate bractlets up to 2 mm. long; rachiB 
subterete or angled, slender, 10 to 18 cm. long at maturity, puberulous with 
spreading cinereous hairs about 0.1 mm. long; pedicels 4 to 7 per centimeter 
of rachis, slightly rugose, puberulous as the rachis, 4 to 5 mm. long, each 
subtended by a deciduous membranous oblong bractlet 3 to 4 mm. long, slightly 
swollen distally; calyx rugose, nigrescent, the tube short-cylindric, 1.0 mm, 
long and 2 mm. In diameter at anthesis, the limb suberect, about 2 mm. long 
Including lobes, the lobes triangular, subacute, less than 1 mm. long, each 
flanked by 2 or 3 minute stalked glands about 0.1 mm. long; corolla sub- 
cylindric, 6 to 7 mm. long, about 3 mm. in diameter, slightly contracted dlstally, 
glabrous, the lobes triangular, acute, about 1 mm. long; stamens about 6 mm. 
long; filaments dark castaneous, loosely connate at base, glabrous or sparsely 
puberulous within distally, about 1.4 mm. and 2.2 mm. long, respectively; 
anther sacs nearly smooth, about 1.3 mm. long; tubules wide, about 3 mm. and 
2.3 mm. long, respectively, opening by clefts about half their length; style 
about as long as corolla or slightly exserted, the stigma peltate; young fruit 
fleshy, nigrescent, subspherlcal, rugose, 5 to 8 mm. in diameter. 
Type in the U. S. National Herbarium, no. 1,143,601, collected in forest on 
peak southeast of La Cumbre, Department of El Valle, Western Cordillera, 
Colombia, altitude 2,200 to 2,400 meters, May 14 to 19, 1922, by F. W. Pennell 
and E. P. Killip (no. 5801). Duplicates at B, Y. 
Distribution: Known only from the type collection. 
The small coriaceous leaves, the long graceful racemes, and the numerous 
delicate flowers of this plant distinguish it at once. It would be a fine species 
to introduce into cultivation. 
Explanation or Plath 15.—Cavendishia spicata, from photograph of type sheet. About 
one-half natural size. 
20. Cavendishia punctatifolia (K. & P.) Hoer. Bot. Jahrb. Engler 42:279. 
1909. 
Thibaudia punctatifolia R. & P. FI. Peru v. Chil. 4 : pi. 887. 1802. 
Thibaudia punctata R. & P.; St. Hil. Exp. Fam. Nat. 363, 1805. 
Cavendishia kraenzlitiiana Hoer. Bot. Jahrb. Engler 40 : 322. 1909. 
Subscandent shrub with branches up to 4 meters long; branchlets stout, sub- 
terete, brownish, glabrous; petioles subrugose, 6 to 10 mm. long, stout, 3 to 4 
mm. in diameter, glabrous; leaf blades oblong, 12 to 25 cm. long, 6 to 11 cm. 
broad, truncate at base, subacute or short-acuminate at apex, entire and 
slightly revolute at margins, glabrous, copiously impressed-punetate on both 
surfaces (punctations 1 or 2 per square mm.), 7 pli nerved, the secondary 
nerves oriented above base, slightly impressed above, very prominent beneath, 
the veinlets reticulate, nearly plane on both surfaces; inflorescence axillary, 
elongate-racemose, 30 to 60 flowered, deciduously bracteate at base with 
numerous imbricate ovate flmbriate glabrous bracts up to 2 cm. long and 1.5 
cm. broad, glabrous in all parts; rachis angled, stout, 3 to 5 mm, in diameter, 
10 to 30 cm. long at maturity; pedicels 1 to 6 per centimeter of rachis, rugose, 
10 to 18 mm. long, each subtended by a deciduous bract, minutely bibracteolate 
near base, swollen distally; calyx strongly rugose, slightly apophysate at base, 
the tube short-cylindric, about 2.5 mm. long and 3.5 to 4 mm. in diameter at 
anthesis, the limb suberect, 2 to 3.5 mm. long including lobes, the lobes ovate, 
apiculate, 1 to 2 nun. long; corolla subcylindric, greenish white, 11 to 14 mm. 
long, 4 to 5 mm. in diameter, contracted distally, the lobes triangular, subacute, 
about 1 mm. long; stamens 9 to 10 mm. long; filaments dark castaneous, dis- 
tinct or loosely coherent at base, sparsely puberulous distally with hairs up 
to 0.2 mm. long, 2.5 mm. and 3.5 mm. long, respectively; anther sacs nearly 
SMITH—AMERICAN SPECIES OF THlBAUDIEAE 481 
smooth, 3 to 4 mm. long; tubules wide, flexible, about 5 mm. and 4 mm. long, 
respectively; stigma peltate; young fruit subspberical or broadly conical, tip 
to 10 mm. in diameter. 
Ttfu locautt: Andes of Peru. Type collected by Ruiz and Pavon (or by 
Dombey?). 
Distribution : Andes of central Peru, altitude 1,700 to 3,200 meters. 
Peru: Dombey 431 (B, type collection?). 
Hu&nuco: Chaglla, Maobride 3632 (F). 
JuNfi?: Huacapistana, Weberbauer 1072 (B, type of C. kraenzliniana) ; 
Killip & Smith 24250 (N, T). Carpapata, above Huacapistana, Killip 
d Smith 24473 (N, Y). 
The species treated in this section of the genus are quite distinct from one 
another on the characters mentioned in the key; the present species and the 
preceding differ from the two following by having the rachis unbranched. 
21. Cavendlshia divaricata A. C. Smith, sp. nov. 
Frutex robustus; ramulis petiolisque crassis glabris; laminis crasso-coriaceis 
oblongls basi subcordatis apice subacutis supra levlter punctatis 7-pli-nervits; 
inflorescentla paniculata crassa multiflora ublque glabra; calycis rugosi limbo 
tubum subaequante, lobis magnis ovatis; corolla snbcylindrica; filamentis an- 
therisque compensanter inaequalibus, tubulis quam loculis longioribus. 
Stout shrub; branchlets thick, frequently 10 mm. in diameter near termina- 
tion, angled, brownish, glabrous; petioles rugose, stout, about 5 mm. in diam- 
eter, 5 to 10 mm. long, glabrous; leaf blades thick-coriaceous, oblong, 12 to 
20 cm. long, 0 to 8 cm. broad, lightly subcordate at base, obtuse or subacute at 
apex, entire and revolute at margins, glabrous, shallowly punctate above, 7-pli- 
nerved, the secondary nerves oriented slightly above base, with the midnerve 
impressed above, very prominent beneath, the veinlets reticulate, plane above, 
slightly raised beneath; inflorescence axillary near ends of branchlets, panicled, 
50 to 100 flowered, deciduously bracteate at base, glabrous in all parts; branches 
of inflorescence angled, stout, up to 8 mm. in diameter, the primary branch 
20 to 30 cm. long, with about 10 secondary branches up to 15 cm. long, and 
with tertiary branches sometimes present, up to 4 cm. long; pedicels 1 or 2 
per centimeter of rachis, rugose, 10 to 20 mm. long, each subtended by a de- 
ciduous papyraceous oblong bract up to 25 mm. long and 10 mm. broad, decid- 
uously bibracteolate near base; calyx rugose, the tube short-cyltndric, about 
2.5 mm. long and 4 mm. in diameter at anthesis, the limb spreading, 4 mm. 
long including lobes, the lobes ovate, apiculate, about 3 mm. long, thick- 
margined except at apex; corolla subcylindric or elongate-urceolate, grayish 
red, 20 to 22 mm. long, 7 to 8 mm. in diameter, contracted distally, the lobes 
triangular, subacute, about 2 mm. long; stamens 16 to 17 mm. long; filaments 
castaneous, distinct, pilose ventrally and at margins distally with hairs up 
to 0.4 mm. long, 2.5 mm. and 3.5 mm. long, respectively; anther sacs slightly 
granular, incurved at base, about 5 mm. long; tubules wide, about 9.5 mm. 
and 9 mm. long, respectively; style about as long as corolla or slightly ex- 
serted, the stigma peltate; fruit coriaceous, strongly rugose, dark red, up to 
12 mm. in diameter. 
Type in the herbarium of the New York Botanical Garden, collected in 
forest at San Jos£, near San Antonio, Department of El Cauca, Western Cor- 
dillera, Colombia, altitude 2,400 to 2,700 meters, June 30, 1922, by F. W. 
Pennell (no. 7557). Duplicate in the U. S. National Herbarium. 
Distribution : Western and Central Cordilleras of southern Colombia, alti- 
tude 2,300 to 2,800 meters, 
482 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Colombia. 
El Cauca: San Antonio, Pcnnell d Killip 7384 (X). Central Cordillera, 
near Popay&n, Lchmann 4763 (K). 
As noted in the key, this species is marked by its robust habit and copiously 
branching inflorescence. The stamens frequently show very slight variations, 
and casual dissection might lead one to consider them isomorphic. 
22. Cavendishia paniculata Rusby, Mein. Torrey Club 4; 215. 1895. 
Ghupalon viridiflorum Kuntze, Rev. Gen. PI. 3l: 190. 1898. 
Thibaudia viridi flora K. Sclium. Just's Bot. Jahresb. 26*: 385. 1900. 
Cavendishia muschleriana Hoer. Bot. Jahrb. Engler 42: 326. 1900. 
Shrub or low tree 3 to 6 meters high with drooping branches; branchlets 
subterete or irregularly striate, brownish, sparsely pubescent when young, 
becoming glabrous; petioles subrugose, narrowly angled, sparsely puberulous 
when young, becoming glabrous, 5 to 10 mm. long; leaf blades thick-coriaceous, 
oblong, somewhat bullate, 9 to 20 cm. long, 5 to 9 cm. broad, lightly subcordate 
or truncate at base, acute or acuminate at apex, entire and slightly revolute at 
margins, glabrous above, finely puberulous beneath with spreading white hairs 
up to 0.3 mm. long, also bearing scattered castaneous glandular hairs about 
0.2 mm. long, becoming essentially glabrous, 7 pli nerved, the secondary nerves 
oriented near base, impressed above, prominent beneath, the veiniets reticu- 
late, plane above, slightly raised beneath; inflorescence terminal or axillary, 
panicled, 50 to 150 flowered, deciduously bracteate at base; branches of inflores- 
cence subterete or angled, sparsely puberulous or glabrous, somewhat lax, the 
primary branch 8 to 25 cm. long, the secondary branches 5 to 10, ascending, 
somewhat flexuose, 6 to 12 cm. long, the tertiary branches often present, up to 6 
cm. long; pedicels 1 to 3 per centimeter of rachis, subrugose, glabrous, 
5 to 12 mm. long, each subtended by a deciduous bract up to 1 cm. long and 
minutely bibracteolate near base with membranous ovate bractlets up to 2 mm. 
long; calyx rugose, the tube subcylindric or slightly angled to the sinuses, 
sometimes slightly apophysate at base, glabrous, 2 to 2.5 mm. long, 3 to 4 mm. 
in diameter at anthesis, the limb spreading, 2 to 2.5 mm. long including lobes, 
the lobes ovate, apiculate, about 1.5 mm. long, thick-margined; corolla sub- 
cylindric, 10 to 11 mm. long, 4 to 5 mm. in diameter, contracted dlstally, the 
lobes triangular, subacute, about 1 mm. long; stamens 7.5 to 8.5 mm. long; 
filaments castaneous, distinct, sparsely puberulous dlstally, about 2 mm. and 3 
lobes triangular, subacute, about 1 mm. long; stamens 7.5 to 8.5 mm. long; 
tubules wide, about 5 mm. and 4 mm. long, respectively; young fruit sub- 
spherical, rigidly coriaceous, up to 8 mm. in diameter. 
Type locality: Yungas, Bolivia. Type collected by Bang (no. 721). 
Distribution : Andes of southern Peru and northern Bolivia, altitude 750 to 
2,400 meters. 
Peru. 
Ayacucho: Aina, between Huanta and Rio Apurimac, KilUp d Smith 
22199 (N, Y). Ccarrapa, between Huanta and Rfo Apurimac, Killip 
d Smith 22432 (N, Y). 
Cuzco: Near Santa Ana, Province ConvencWn, Weberbauer 5009 (B, type of 
C. muschleriana). Cerro de Cusilluyoc, Pennell 13962 (F). Machu 
Picchu, Cook d Gilbert 862 (N). 
Bolivia: Banff 721 (F, G, N, Y, type). Rio Juntas, Kuntze, in April, 1892 (Y, 
type of Chupalon viridiflorum). 
La Paz: Mapiri, Rmby 2403 (Y). Tipuani, Buchtien 7612 (B, Y). La 
Joy a, Cordillera Iteal, Tate 1048 (Y). 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 483 
A very well marked and coherent species, the three types Involved showing 
no essential differences. A local name in southern Peru is " monte frutilla." 
23. Cavendishia sessiliflora A. C. Smith, sp. no v. 
Frutex; laminis ovatis vel leviter obovatls basl anguste attenuates apice 
obtusis 3 ad 5 pli-nerviis; floribus axillaribus solitariis vel binis basl bracteis 
minutis instmetis dense albo-pubeseentibus; calyeis subcampanulatl limbo quam 
tubo paullo breviore; corolla subcylindrica; fllamentis antherisque compensanter 
inaequalibus, tubulis quam loculis longioribus. 
Shrub; branchlets subterete, slightly rugose, glabrous; petioles rugose, 
essentially glabrous, angled or narrowly winged above, 4 to 6 mm. long; leaf 
blades ovate or slightly obovate, 3 to 5 cm. long, 1.5 to 2.5 cm, broad, narrowly 
attenuate at base, obtuse at apex, entire and slightly revolute at margins, thick- 
coriaceous, glabrous and shining above, glabrous and sparsely brown-punctate 
beneath, 3 to 5 pli-nerved, the midnerve slightly impressed^ above, raised 
beneath, the secondary veins oriented above base, arcuate, nearly plane above, 
slightly raised beneath, the vein lets obscurely reticulate; flowers axillary, 
solitary or in pairs, circumscribed at base by a few submembranous ovate 
puberulous bractlets up to 3 mm. long; pedicels subterete, about 1 mm. long, 
bibracteolate at base with similar bractlets, pubescent as the calyx; calyx 
strongly rugose, densely white-pubescent with spreading hairs up to 0.3 mm. 
long, the tube subcylindric or campanulate, 3 to 4 mm. long and about 3 mm, 
in diameter at anthesis, the limb suberect, 2 to 3 mm. long Including lobes, 
the lobes triangular, subacute, 1,5 to 2 mm. long, pubescent as the tube and also 
distally pilose with a few appressed brown hairs about 0.3 mm. long; corolla 
subcylindric, D to 11 mm. long, 3 to 4 mm. In diameter, contracted at base and 
apex, pilose with persistent short spreading hairs as the calyx, the lobes 
triangular, subacute, about 1 mm. long; stamens subequal (alternate filaments 
and anthers compensatingly unequal), 7 to 8 mm. long; filaments nigrescent, 
glabrous or sparsely puberulous distally, about 2 mm. and 3.5 mm. long, 
respectively; anther sacs slightly granular, 2 to 3 mm. long; tubules flexible, 
about 5 mm. and 4 mm. long, respectively, opening by clefts nearly as long; 
stigma truncate. 
Type in the herbarium of the New York Botanical Garden, collected in forest 
above Cascada Chorron, south of Antlzales, Department of Bolivar, Colombia, 
altitude 2,400 to 2,800 meters, February 25,1918, by F, W. Pennell (no. 4377). 
Distribution ; Andes of northwestern Colombia. 
Colombia. 
BolIvab: Bfo Sinti, Pennell 4780 (T). 
Like many other plants from the northwestern section of Colombia, this 
species is apparently local in distribution and is quite isolated from other 
species of the genus. It is immediately distinguished by its attenuate-based 
leaves, Its essentially solitary subsessile flowers, and its pilose corolla. 
84. Cavendishia killipii A. C. Smith, sp. nov. 
Frutex; ramulis petiolieque pilosis; laminis oblongo-elliptlcls basl cuneatls 
apice rotundatis subtus pilosis 5 ad 7 pli-nerviis; inflorescentia subfasciculata 
basi bracteis submembranaceis oblongis glabris instructa; floribus albo-pilosls; 
calycis subcampanulatl limbo quam tubo breviore glanduloso-marginato; corolla 
subcylindrica; fllamentis antherisque compensanter inaequalibus, tubulis quam 
loculis longioribus. 
Spreading shrub 2 to 4 meters high; branchlets terete, cinereous, pilose with 
pale spreading hairs about 0.2 mm. long, becoming glabrous; petioles subrugose, 
pilose as the branchlets, 3 to 5 mm. long; leaf blades oblong-elliptic, 5 to 7 cm. 
484 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
long, 2 to 2.5 cm. broad, cuneate at base, rounded at apex, entire and slightly 
revolute at margins, short-pilose above on nerves and at margins, pilose beneath 
on nerves with stiff hairs about 0.3 mm. long, also with scattered deciduous 
appressed brownish hairs about 0.2 mm. long, 5 to 7 pli-nerved, the secondary 
nerves oriented slightly above base, ascending, with the midnerve slightly im- 
pressed above, raised beneath, the veinlets reticulate, slightly raised above; 
inflorescence axillary or terminal, subfasciculate, 8 to 15 flowered, bracteate at 
base and enveloped when young by several imbricate, submembranous. deep red, 
oblong, glabrous bracts up to 2 cm. long and 1 cm. broad; pedicels subrugose, 
sparsely puberulous, 4 to 5 mm. long, each subtended by a deciduous bract 
similar to those at base of inflorescence, bibracteolate near base with sub- 
membranous oblong lanceolate glandular-margined bractlets 2 to 2.5 mm. long; 
calyx subcoriaceous, densely pubescent with spreading white hairs up to 0.3 
mm. long, the tube subcylindric or campanulate, about 3 mm. long and 2.5 mm. 
in diameter at anthesis, the limb suberect, about 2 mm. long including lobes, the 
lobes triangular, acute, about 1 mm. long, flmbriate with numerous glandular 
hairs about 0.2 mm. long, the sinuses rounded; corolla red, pinkish white dis- 
tally, subcyli ndric, 11 to 12 mm. long, about 3.5 mm. in diameter, pilose as the 
calyx, the lobes oblong, subacute, 2 to 2.5 mm. long; stamens subequal (alternate 
filaments and anthers compensatingly unequal), 10 to 10.5 mm. long; filaments 
castaneous, slender, distinct, sparsely puberulous distally, about 2.5 mm. and 
5 mm. long, respectively; anther sacs slightly granular, about 3 mm. long; 
tubules wide, about 5.5 mm. and 3 mm. long, respectively, opening by clefts 
nearly as long; stigma peltate. 
Type in the U. S. National Herbarium, no. 1,351,059, collected in woods on 
Mesa de los Santos, Department of Santander, Eastern Cordillera, Colombia, 
altitude 1,500 meters, December 12, 1926, by E. P. Killip and A. C. Smith 
(no. 15124). Duplicate at Y. 
Distribution : Known only from the type collection. 
This species, which is probably closest related to C. pubeaoens, is quite dis- 
tinct on the basis of its smaller leaves (obtuse at apex) and its glandular- 
margined bractlets and calyx lobes. 
25. Cavendishia peruviana Hoer. Bot. Jahrb. Engler 42: 332. 1909. 
Compact shrub ; branch lets subterete or angled, brownish, glabrous; petioles 
nigrescent, rugose, stout, glabrous, 5 to 6 mm. long; leaf blades oblong, 11 to 
14 cm. long, 2.5 to 5 cm. broad, truncate at base, obtusely short-acuminate at 
apex, entire and revolute at margins, thick-coriaceous, glabrous above, pilose 
beneath (hairs nigrescent, appressed, stout, about 0.2 mm. long, 5 to 8 per 
square millimeter of surface), 7 to 9 pli-nerved, the secondary nerves oriented 
above base, ascending, with the midnerve impressed above, prominent beneath; 
inflorescence axillary, subfasciculate (rachis stout, elongating at maturity to 
3 cm.), 10 to 20 flowered, bracteate at base and enveloped when young by 
several imbricate, subcoriaceous, externally pale-pilose, ovate bracts up to 
2 cm. long and 1.5 cm. broad; pedicels subterete, glabrous, about 10 mm. long, 
deciduously bibracteolate at base; calyx tube coriaceous, sparsely pilose or 
glabrous, campanulate, about 3.5 mm. long and 4 mm. in diameter at anthesis; 
limb erecto-patent, about 2 mm. long including lobes, the lobes deltoid, 1.5 mm. 
long, sparsely glandular-margined; corolla thin-carnose, cylindric, about 14 mm. 
long and 4 mm. in diameter, pale pilose with short spreading hairs, becoming 
subglabrous, the lobes triangular, about 1 mm. long; stamens 11 to 12 mm. long; 
filaments nigrescent, distinct, puberulous, about 2.5 mm. and 4 mm. long, respec- 
tively ; anther sacs slightly granular, about 3.5 mm. long; tubules wide, about 
7 mm. and 5.5 mm. long, respectively; stigma truncate. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAB 485 
Type locality ; Between the tambos Jehubamba and Yuncacoya, between 
Sandfa and Ghunchusmayo, Department of Cuzco, Peru, altitude 1,800 to 2,GOO 
meters. Type collected by Weberbauer (no. 1081). 
Distribution : Known only from the type collection. 
Pebu. 
Cuzco: Between Sandla and Chunehusmayo, Weberbauer 1081 (B, type). 
In its pubescent bracts and flowers this species shares the characters of 
C. pubescens, from which it is distinguished by the different type of pubescence 
on the lower surface of leaves. 
26. Cavendishia pubescens (H. B, K.) Hemsl. Biol. Centr. Amer. Bot. 2:273. 
1881. 
Thibaudia pubescens H. B. K. Nov. Gen. & Sp. 3:273. 1818. 
TThibaudia oblongi folia Remy, Ann. Sd. Nat. III. Bot 8 : 233. 1847. 
Proclesia pubescens Klotzsch, Linnaea 24:33. 1851. 
Thibaudia cinnamomifolid Willd,; Walp. Ann, Bot. 2:1087. 1852, as synonym. 
Thibaudia septemnervia Willd.; Walp. Ann. Bot 2:1087. 1852, as synonym. 
Polyboea velutina Griseb.; Lechl. Berb. Amer. Austr. 58. 1857, nomen. 
Chupalon pubescens Kuntze, Kev. Gen. PI. 2:383. 1891. 
Shrub or small tree to 5 meters high; branchlets subterete, brownish, softly 
tomentose with pale spreading hairs up to 0.5 mm. long, becoming glabrous with 
age; petioles subterete, pilose as the branchlets, 6 to 10 mm. long; leaf blades 
oblong or ovate-oblong, 10 to 20 cm. long, 4 to 9 cm. broad, cuneate at base, 
acuminate or caudate-acuminate at apex, entire and slightly revolute at mar- 
gins, glabrous or short-pilose above, pilose beneath, especially on nerves, with 
pale spreading hairs up to 0.5 mm. long, 5 to 7 pli-nerved, the secondary nerves 
oriented above base, ascending, with the midnerve slightly impressed above, 
prominent beneath, the veinlets slightly raised on both surfaces; inflorescence 
axillary or terminal, racemose, 10 to 25 flowered, circumscribed at base and 
enveloped when young by numerous imbricate bracts, the bracts oblong-ovate, 
submembranous, up to 25 mm. long and 15 mm. broad, densely short-pilose 
without becoming glabrous, thin-margined; rachis 1 to 4 cm. long at maturity 
(rarely to 7 cm. long), stout, often to 5 mm. in diameter, densely pilose as 
the branchlets; pedicels subterete, strlate, densely pilose with pale spreading 
hairs up to 0.3 mm. long, 6 to 10 mm. long, each subtended by a deciduous 
bract similar to those at base of Inflorescence, deciduously bibr&cteolate near 
base with oblong pilose bractlets 2 to 3 mm. long, slightly swollen dlstally; calyx 
tube short-cyllndric or campanulate, densely pilose with appressed white hairs 
about 0.2 mm. long, 3.5 to 5 mm. long, 3 to 5 mm. in diameter at anthesis; 
limb suberect, 2.5 to 5 mm. long Including lobes, slightly less pilose than the 
tube, the lobes triangular or lanceolate-triangular, acute, 2 to 4 mm. long, de- 
ciduously glandular-margined, the sinuses sharp; corolla subcylindric, 20 to 26 
mm. long, 4 to 6 mm. in diameter, slightly contracted dlstally, pilose as calyx, 
the lobes triangular, subacute, 1 to 1.5 mm. long; stamens 13 to 18 mm. long; 
filaments dark castaneous, distinct or loosely coherent at base, pilose ventrally 
and at margins dlstally, 3 to 4 mm. and 5 to 8 mm. long, respectively; anther 
sacs granular, 5 to 8 mm. long; tubules wide, about 9 mm. and 7 mm. long, 
respectively, opening by clefts nearly as long; stigma peltate; fruit spherical, 
up to 12 mm. in diameter, densely and persistently pilose, surmounted by the 
persistent calyx limb and style. 
Type locality: Near Caracas, Federal District, Venezuela. Type collected 
by Humboldt and Bonpland. 
Distribution: Common throughout the Andes, from Venezuela to Bolivia, 
altitude 600 to 3,000 meters. 
< 
486 CONTRIBUTIONS FEOM THE NATIONAL HERBARIUM 
This is a well-marked species which falls into several forms, none of which 
seem to me to merit varietal rank, although two have been recognized as 
varieties by Hoerold. In this treatment his names are retained, but no new 
ones are added. 
The above flower description is taken from a typical specimen from eastern 
Colombia. There is great variation in flower dimensions, the stamens ranging 
from 11 to 20 mm. in length, depending upon habitat. The dense pubescence 
of the flowers is usually sufficiently well marked to identify the plant; the 
elongate calyx lobes also are characteristic. A local name in Colombia is 
M
 uva de monte." 
The typical form, with densely pubescent calyx, elongate calyx lobes, and 
long-acuminate leaves, is represented by the following specimens: 
Venezuela: Curran d Hainan 1118 (G). 
Federal District: Caracas and vicinity: ffumboldt & Bonpland (B, type) ; 
Berschel (K); L. S. d E. Z. Bailey 992 (Y); Pittier 5872 (N, Y), 
©175 (G, N, Y). Gallpftn, Euntze 1572 (N, Y) ; E. Pittier 81 (N, Y). 
Aeagua: Colonia Tovar, Fendler 738 (G, Y). 
Tbujillo: Between Valera and Monte Carmelo, de Bellard (N). 
M£bida: Moritz 1346 (B). 
Colombia : Pur die (K) ; Goudot (K). 
North de Santandeb : Toledo, Eillip & Smith 20055 (N, Y). 
Santandeb: Between Piedecuesta and Las Vegas, Eillip d Smith 15465 
(N, Y), 15918 (N, Y). Charta, Eillip d Smith 18883 (N, Y), 19039 
(N, Y), 19061 (N, Y), 19308 (Nt Y). Tona, Eillip d Smith 19435 
(N, Y), 19460 (N, Y). 
Cundiwamakca: Fusagasugfi, Tracey 336 (It) ; Pennell 2695 (N, Y). 
Touma (?) : Qulndfo Region, Andr6 (K) ; ffolton 634 (Y). 
Huila: East of Neiva, Rushy d Pennell 939 (F, G, N, Y)f 563 (Y). 
ANTioQUfA: South of Culdas, Pennell 10933 (N, Y). Fredonia, Toro 191 
(Y). Quebrada del Ato, Archer 176 (N). Rio Negro, Archer 316 
(N, Y). MedelUn, Archer 1363 (N, Y), 1592 (N, Y). 
Caldas: North of Supla, Pennell 10722 (Y), 10744 (N, Y). 
Pebu: Maclean (K). Tabina, Leohler 1924a (K). 
Cuzco: Sandla, Weberbaver 594 (B). 
Bolivia: Pentland (K). 
La Paz: Milluguaya, Buchtien 715 (F, Y). Coroico, Pearce, in March, 
1866 (K) ; Buchtien 3870 (Y). Yungas, Rushy 2033 (F, G, N, Y); Banff 
290 (F, G, N, Y). Sirupaya, Buchtien 503 (N, Y). 
A form more glabrous throughout than the above specimens, distributed 
locally in Colombia, Peru, and Bolivia, is represented by the foil owing 
specimens: 
Colombia. 
Touma: Ibagu<5, Triana 2668 (Y). Murlllo, Pennell 3192 (N, Y). 
Pebu: Ruiz de Pav6n (K). 
JurrtN: Carpapata, Killip & Smith 24489 (N, Y). San Ram6n, Eillip & 
Smith 24882 (N, Y). Pichts Trail, Porvenir, Eillip d Smith 25938 
(N, Y), * 
Bolivia. 
Coohabamba: Locotal, Steinbaeh 9023 (Y). 
SMITH—AMERICAN SPECIES OP THIBATTDIEAB 487 
26 a. Cavendishia pubescens var. boliviensis Hoer. Bot. Jahrb. Engler 42: 
332. 1909. 
A form with more slender, bluntly acuminate leaves. 
Type locality : Between Guanai and Tipuani, Department of La Paz, Bolivia. 
Type collected by Bang (no. 1383). 
Bolivia. 
La Paz: Between Guanai and Tipuani, Bang 1383 (B, type, Ff G, N, Y). 
26b. Cavendishia pubescens var. microphylla Hoer. Bot. Jahrb. Engler 42: 
332. 1909. 
A form smaller In all parts, the leaves about 6 cm. long and 3 cm. broad. 
Type locality: Peru. Type collected by Weberbauer (no. 1081a). 
Pebu: Weberbauer 1081a (B, type), 
27. Cavendishia sillarensis Herzog, Med. Rijlts. Herb, Leiden 27:20. 1915. 
Compact branching shrub; branchlets subterete, strlate, cinerous, de- 
ciduously pilose with pale spreading hairs up to 0.2 mm. long; petioles 
terete, subrugose, pilose as the branchlets, 5 to 7 mm. long; leaf blades oblong 
or ovate-oblong, 8 to 11 cm. long, 3.5 to 4.5 cm. broad, truncate or broadly 
cuneate at base, caudate-acuminate at apex, entire and slightly revolute at 
margins, coriaceous, glabrous and shining above, pilose beneath (hairs pale, 
spreading, densest on nerves* up to 0.4 mm. long), 5 (rarely 7) pli-nerved, the 
secondary nerves oriented near base, arcuate-ascending, with the midnerve 
slightly impressed above, prominent beneath, the veinlets reticulate, plane on 
both surfaces; Inflorescence axillary, short-racemose at maturity (rachis 
glabrous, 2 to 3 cm. long), 10 to 15 flowered, bracteate at base and enveloped 
when young by several imbricate submembranous oblong bracts up to 15 mm. 
long and 8 mm. broad; pedicels strlate, glabrous, 8 to 10 mm. long, each 
bracteate at base and decidously bracteolate near base; calyx coriaceous, decidu- 
ously white-pilose, the tube campanulate, about 2 mm. long and 3 mm. in 
diameter at anthesis, the limb suberect, 2 to 3 mm. long including lobes, the 
lobes broadly triangular, about 15 mm. long, densely glandular-margined; 
corolla thln-camose, sparsely pale-pilose, cylindric, 12 to 14 mm. long, about 
4 mm. in diameter, the lobes deltoid, about 1 mm. long; stamens 10 to 11 mm. 
long; filaments dark castaneous, distinct, distally pilose, about 2 mm. and 3.5 
mm. long, respectively; anther sncs 2 to 3 mm. long; tubules submembranous, 
about 7 mm. and 6 mm. long, respectively; stigma peltate. 
Type locality : Sillar, Cordillera de Santa Cruz, Bolivia, altitude about 1,700 
meters. Type collected by Herzog (no. 1639). 
Distribution : Known only from the type collection. 
Bolivia: Sillar, Cordillera de Santa Crus, Herzog 1639 (B, type), 
I doubt if this plant, which is distinguished from O. pubescent by its smaller 
leaves and corollas, merits the specific rank assigned to it, but I hesitate 
definitely to reduce the species. 
28. Cavendishia cordifolia (H. B. K.) Hoer. Bot. Jahrb. Engler 42:280. 1909. 
Thibaudia cordifolia H. B E. Nov. Gen. & Sp. 3:271. 1818, 
Proclesia cordifolia Klotzsch, Linnaea 24:32. 1851. 
Proclesia cordata Klotzsch, Linnaea 04:33. 1851. 
Chupalon cordifolium Kuntze, Bev. Gen. PI. 2:384. 1891. 
Chupalon cordatum Kuntze, Rev. Gen. PL 2:384. 1891. 
Cavendishia cordata Hoer. Bot. Jahrb. Engler 42:280. 1909. 
Shrub up to 5 meters high with elongate branches; branchlets subterete, 
slender, cinereous, pilose with pale spreading hairs about 0.3 mm. long; 
petioles subrugose, pilose as the branchlets, becoming glabrous, 2 to G mm. 
long; leaf blades coriaceous, oblong or ovate-oblong, subcordate at base, suba- 
488 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
cute at apex, entire and slightly revolute at margins, 3.5 to S cm. long, 2 to 
4 cm. broad, glabrous above or sparsely pilose with pale spreading hairs 
about 0.3 mm. long, glabrous beneath or minutely puberulous, 6 (rarely 7) 
pli-nerved, the secondary nerves oriented near base, with the mldnerve slightly 
Impressed above, raised beneath, the veinlets obscurely reticulate; inflores- 
cence axillary near ends of branchlets, subfasciculate or short-racemose (rachls 
rarely 3 cm. long), 5 to 15 flowered, bracteate at base and enveloped when young 
by deciduous submembranous glabrous oblong bracts up to 2 cm. long and 1 cm. 
broad; pedicels subrugose, puberulous or glabrous, 5 to 10 mm. long, each sub- 
tended by a deciduous bract similar to those at base of racemes, deciduously 
minutely blbracteolate near base; calyx tube campanulate, about 3 mm. long and 
3 mm. in diameter at anthesis, densely and usually persistently pilose with pale 
ppreading hairs up to 0.3 mm. long; limb ereeto-patent, 1 to 2 mm. long including 
lobes, the lobes triangular, subacute, 1 to 1.5 mm. long; corolla subcylindric, 14 
to 18 mm. long, about 4 mm. in diameter, slightly contracted above, densely and 
regularly pilose as the calyx, the lobes triangular, subacute, about 1.5 mm. long, 
often reflexed; stamens subequal (long and short stamens differing by about 
1 mm., with alternately unequal filaments and anthers), 13 to 17 mm. long; 
filaments dark castaneous, distinct or loosely coherent at base, pilose distally 
with pale brown hairs, about 3 mm. and 5 mm. long, respectively; anther sacs 
slightly granular, about 3 mm. long; tubules wide, about 8.5 mm. and 7 mm. long, 
respectively; stigma peltate; young fruit subspherical, up to 9 mm. in diameter, 
densely pilose, eventually becoming glabrous. 
Type locality: Andes of Colombia. Type collected by Humboldt and Bon- 
pland. 
Distribution : Andes of Venezuela, Eastern Cordillera of Colombia, and north- 
ern Ecuador, altitude 1,300 to 3,000 meters. 
Venezuela, 
M£bida: Moritz 1348 (B, type of C. cor data, G, K). P&ramo La Tram pa, 
Jahn 997 (N, Y). Between Tabay and Mucnrubfi, Pittter 12874 (Y). 
MucuruM, Qehriger 275 (N, Y). 
Colombia: Humboldt d Bonpland (B, type); " Lobb 224" (K). 
Nobtej de Santa nder : San Pedro, between Oca Ha and Pamplona, Kalbreyer 
1027 (B). 
Santander: Charta, Kilttp & Bmith 18875 (N, Y), 21218 (N). 
Curdinamabca : Vicinity of Bogota, Triana (K), 2677 (Y) ; Linden 1304 
(K, N) ; Holton 630 (G, Y); Dawe 338 (K); Tracetf 14 <K); Stuebel 
120b (B); Popenoe 1170 (N) ; Bchultze 15 (B, N) ; Niemeper 141a (N), 
143 (N). Southeast of QuetamS, Pennell 1769 (N, Y), 1770 (G, N, Y), 
1782 (Y). Tequendama, Pennell 1968 (Y), Sibat€, Pennell 2447 
(N, Y). 
Htjila : East of Neiva, Rugby d'Peimell 567 (N, Y), 567A (Y, in part), 989 
(Y), 991 (G, N, Y). 
NabiSo; Altaquer, Andr6 3475 (K). 
Colombia or Ecuador; San Miguel, Andrt 828 (K). 
Ecuador. 
Pichincha : Calacali, Lehmann 6299 (B). P&ramo de Chimbalan, Andr4 
3002 (K)> 
Among the above-cited specimens, those which show the greatest deviation 
from the type are the Busby and Pennell collections from Huila, which have 
somewhat larger and caudate-acuminate leaves (sparsely soft-pilose beneath) 
SMITH—AMERICAN" SPECIES OF THIBAUDIEAE 489 
and pilose petioles and branchlets. These differences are possibly of varietal 
value. 
Local names for C. oordifolia are: "Uva camarona," "uva de anis" 
(Bogota), "coral" (Venezuela). 
The five species considered in this section of the key (nos. 28 to 32) are of 
doubtful value. Since the names already exist, however, and since the slight 
and rather unsatisfactory differences mentioned in the key are correlated with 
geographic distribution, the specific names are retained in this treatment. The 
situation existing in this group is not uncommon in the study of most South 
American genera. Whether the five forms are to be considered species, varieties, 
slight and unstable variations, or individual forms, is purely a matter of per- 
sonal opinion and experience, The possibility of some of these specimens being 
hybrids is not to be overlooked. Personally, I am Inclined not to believe these 
forms of specific rank, but previous workers have demonstrated different opin- 
ions and the resulting names have in some cases become well known. For in- 
stance, to reduce the name 0, cordi folia (the well-known form of the Bogota 
region) to 0. bracteata (the oldest of these names) would cause some confu- 
sion. This previous establishment of names and the facts of geographic distri- 
bution are my only important reasons for retaining the five species. 
29. Cavendishia hartwegiana (Klotzscli) Hoer. Bot. Jahrb. Engler 42:281. 
1909. 
Proolesia hartwegiana Klotzsch, Linnaea 24:35. 185L 
Chupalon hartwegianum Kuntze, Rev. Gen. PI. 2 : 384. 1891. 
Shrub; branchlets subterete, when young laxly pale-pilose with hairs about 
02, mm. long; petioles rugose, sparsely pilose or glabrous, 2 to 3 mm. long; 
leaf blades ovate or oblong-ovate, 3 to 5 cm. long, 1.5 to 2.2 cm. broad, broadly 
cuneate or truncate at base, subacute or obtusely short-acuminate at apex, en- 
tire at margins, essentially glabrous above, glabrous beneath or sparsely pilose 
with scattered minute brown hairs, obscurely 5-pll-nerved, the secondary nerves 
oriented near base, nearly plane above, slightly raised beneath, the veinlets 
obscurely reticulate; inflorescence axillary or sub terminal, racemose, 0 to 12 
flowered, bracteate at base with a few papyraceous glabrous oblong bracts up 
to 20 mm. long and 8 mm. broad; rachls terete, glabrous, up to 6 cm. long; pedi- 
cels rugose, glabrous, 4 to 8 mm. long, each subtended by a deciduous bract 
similar to those at base of inflorescence, blbracteolate near base with linear, 
subcoriaceous, sparsely glandular-margined bractlets about 2 mm. long; calyx 
tube broadly campanulate, about 2 mm. long and 3 mm. in diameter at anthesis, 
laxly white-pubescent with hairs about 0.3 mm. long; limb subspreading, essen- 
tially glabrous, about 2 mm. long including lobes, the lobes triangular, acute, 
about 1 mm. long, thick-margined towards apex, the sinuses rounded; corolla 
cylindric, glabrous, 16 to 17 mm. long, about 4 mm. in diameter, the lobes 
triangular, acute, about 1.5 mm. long; stamens 13 to 14 mm. long; filaments cas- 
taneous, loosely connate at base, sparsely puberulous distally, about 2 mm. 
and 3 mm. long, respectively; anther sacs slightly granular, sparsely puberulous, 
about 4 mm. long; tubules wide, about 8.5 mm. and 7.5 mm. long, respectively, 
opening by clefts about one-third their length; stigma truncate. 
Type locality : Loja, Province of Loja, Ecuador. Type collected by Hartweg 
(no. 789). 
Distribution : Andes of Ecuador. 
Eouadob: Spruce 5095 (G, K, Y) ; Jameson (N, Y) ; Seemann (G). 
TtmauBAGUA: Bafios, Pachano 223 (N); Tate 629 (N). 
Loja: Loja, Hartweg 789 (B, type, K, Y); Popenoe 1315 (N). 
490 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
The relationship of this species to the preceding is indicated In the key and is 
discussed under C. cordifolia. Local names for C, hartwegiana are: " Salapa," 
" sagulita." 
30. Cavendishia bracteata (It. & P.) Hoer. Bot. Jahrb, Engler 42:280. 1909. 
Thibaudia bracteata R. & P. Fl. Peruv. Chil. 4 ; pi. 888. 1802. 
Proclesia bracteata Klotzsch, Linnaea 24:34. 1851. 
Chupalon bracteatum Kuntze, Rev. Gen. PL 2:383. 1891. 
Cavendishia ulbrichiana Hoer. Bot. Jahrb. Engler 42:330. 1909. 
Compact branching shrub; branchlets subterete, einerous or brownish, de- 
ciduously pilose with lax pale hairs; petioles subterete, 1 to 3 mm. long, essen- 
tially glabrous; leaf blades oblong, 3 to 4 cm. long, 1.3 to 1.8 cm. broad, truncate 
or lightly subcordate at base, obtusely short-acuminate at apex, entire at mar- 
gins, coriaceous, glabrous and scabridous above, glabrous or minutely brown- 
pilose beneath, 3-nerved from base (rarely 5-nerved), the nerves plane above, 
slightly raised beneath, the veinlets obscure; inflorescence axillary, subfascicu- 
late, 3 to 8 flowered, bracteate at base and enveloped when young by several 
imbricate submembranous glabrous oblong bracts up to 12 mm. long and 8 mm. 
broad; pedicels subterete, glabrous, 3 to 4 mm. long, each bracteate at base and 
deciduously bibraeteolate at middle; calyx coriaceous, deciduously pilose with 
minute appressed brown hairs, the tube campanulate, 2 to 3 mm. long, about 3 
mm. in diameter at anthesis; limb erecto-patent, 1 to 1.5 mm, long including 
lobes, the lobes deltoid, about 1 mm. long, glandular-margined; corolla thin- 
carnose, cylindric, 12 to 15 mm. long, 2.5 to 3 mm. in diameter, densely white- 
pilose, the hairs pale, spreading, about 0.5 mm. long, eventually deciduous; 
stamens 12 to 13 mm. long; filaments dark castaneous, distinct, essentially 
glabrous, about 2 mm. and 4 mm. long, respectively; anther sacs slightly granu- 
lar, about 3 mm. long; tubules wide, flexible, about 8 mm. and 6 mm. long, 
respectively; stigma peltate. 
Type locality : Andes of Peru. Type collected by Dombey. 
Distribution : Andes of Central Peru. 
Peru. 
JunIn: Huasa-Huasi, Dombey (B, probably type collection). Between 
Palca and Huacapistana, 2,200 to 2,600 meters, Weberbauer 1770 (B, 
type of C. ulbrichiana). 
The two types above cited come almost from the same locality and show no 
essential differences. The species is very closely related to <7. hartwegiana, 
31. Cavendishia scabriuscula (H. B. K.) Hoer. Bot. Jahrb. Engler 42:281. 
1909. 
Thibaudia scabriuscula H. B. K. Nov. Gen. & Sp. 3:272. 1818. 
Proclesia scabriuscula Klotzsch, Linnaea 24:33. 1851. 
Chupalon scabriusculum Kuntze, Rev. Gen. PI. 2:384, 1891. 
Low shrub with elongate branches; branchlets subterete, brownish, puberulous 
with short pale spreading hairs, becoming glabrous; petioles subrugose, de- 
ciduously puberulous, 3 to 4 mm. long; leaf blades oblong or oblong-lanceolate, 
4 to 7 cm. long, 1.5 to 2.5 cm. broad, truncate or lightly subcordate at base, 
obtuse or obtusely short-acuminate at apex, entire at margins, coriaceous, 
usually scabridous on both surfaces, glabrous above, suhglabrous beneath (fre- 
quently sparsely brown-pilose and white puberulous on nerves), 5-pli-nerved, 
the secondary nerves oriented near base, ascending, with the mldnerve plane 
or slightly impressed above, raised beneath, the veinlets reticulate, obscure 
or plane on both surfaces; inflorescence axillary, subfasciculate or short- 
racemose (racbis rarely exceeding 2 cm. in length), 3 to 8 flowered, bracteate 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 491 
at base and enveloped when young by several imbricate membraneous glabrous 
oblong bracts up to 2 cm. long and 1 cm. broad; pedicels subterete, essentially 
glabrous, 5 to 8 mm. long, each bracteate at base and minutely deciduously 
bibracteolate; calyx pilose (usually persistently) with spreading white hairs 
up to 0.5 mm. long, the tube campanulate, about 2 mm. long and 3 mm. in 
diameter at anthesis, the limb erecto-patent, submembranous, 1.5 to 2 mm. 
long including lobes, the lobes deltoid, membranous-margined, about 1 mm. 
long; corolla membranous, cylindrlc, 12 to 18 mm. long, 3 to 4 mm. in diameter, 
pilose as the calyx; stamens 14 to 16 mm. long; filaments castaneous, mem- 
branous, distinct or loosely coherent at base, sparsely pilose distally within, 
about 3 mm. and 5 mm. long, respectively; anther sacs slightly granular, 3 to 
4 mm. long; tubules flexible, 8 to 12 mm. and 7 to 10 mm. long, respectively; 
stigma truncate or subpeltate. 
Type locality ; Andes of the Quindfo Region, Department of Tollma, Co- 
lombia, altitude about 3,000 meters. Type collected by Humboldt and Bonpland. 
Distribution : Eastern and Central Cordilleras of Colombia, altitude 2,000 
to 3,500 meters. 
Colombia. 
Maodalkna: Santa Marta, Purdie (K). San Sebastifin, FuncJc 487 (K). 
North: de Santandeb: Pamplona, Killip & Smith 19781 (N, Y). P&ramo 
, del Hatico, Killip d Smith 20731 (N, Y). 
.Santandeb: Las Vegas, Killip d Smith 15803 (N, Y), 16100 (N, Y). 
P6ramo Rico, Killip d Smith 17857 (N, Y). Quebrada del Pals, north 
of La Baja, Killip d Smith 18784 (N, Y). Charta, Killip d Smith 18888 
(N,*Y), 19312 (N, Y). 
Touua: Ooudot (E). Quindfo Trail, Killip d Hazen 12144 (N), 
Caldab: Salento, Pennell 8862 (G, N, Y) ; Pennell d Hazen 10115 (N, Y). 
Cerro TatamA, Pennell 10539 (Y). 
The differences between this species and the following are neither very marked 
nor constant, but the geographic isolation of the two from one another seems 
to indicate a different ancestry. 
32. Cavendishia beckmanniana Hoer. Bot. Jahrb. Engler 42: 329. 1909, 
Slender shrub with elongate branches; branchlets subterete, brownish, sub- 
glabrous; petioles subrugose, terete, puberulous or glabrous, 3 to 4 mm. long; 
leaf blades oblong, 5 to 9 cm. long, 1.8 to 3 cm. broad, truncate or lightly sub- 
cordate at base, obtuse or obtusely acuminate at apex, entire and slightly 
reyolute at margins, usually smooth on both surfaces, glabrous on both sur- 
faces or sparsely pilose beneath, 5-nerved from base or 5-pli-nerved, the primary 
nerves slightly impressed above, raised beneath, the veinlets obscure or plane 
on both surfaces; inflorescence axillary, short-racemose (mature rachis 1 to 2 
cm, long), 5 to 10 flowered, bracteate at base and enveloped when young by 
several imbricate membranous glabrous oblong bracts up to 2 cm. long and 1 cm. 
broad; pedicels striate, glabrous, 3 to 10 mm. long, deciduously bracteate at 
base and bibracteolate near base; calyx subrugose, sparsely and deciduously 
pilose with short spreading white hairs, the tube campanulate, 2 to 3 mm longt 
about 3 mm. In diameter at anthesis, the limb erecto-patent, about 2 mm. long 
Including lobes, the lobes deltoid, about 1.5 mm. long, membranous at margins; 
corolla submembranous, pilose with spreading white hairs up to 0.4 mm. long, 
14 to 16 mm. long, 4 to 5 mm. in diameter; stamens 13 to 15 mm. long; fila- 
ments dark castaneous, distinct, glabrous or slightly puberulous, 2 to 8 mm. 
and 4 to 5 mm. long, respectively; anther sacs nearly smooth, about 3 mm. long; 
tubules flexible, about 10 mm. and 8 mm. long, respectively; stigma subpeltate; 
young fruit subspherical, soon glabrous, up to 8 mm. in diameter. 
t 
t 
r 
492 CONTRIBUTIONS PROM THE NATIONAL HERBARIUM 
Type locality : Sandfa, Department of Cuzco, Peru, altitude 2,300 to 2,400 
meters. Type collected by Weberbauer (no. 630). 
Disteibution : Andes of central Peru to northern Bolivia, altitude 1,000 to 
3,000 meters. 
Peru: Tabina, LecJUer 1875 (K). San Govfin'Levhler 2108 (K). 
JonIn: Huacapistana, Killip & Smith 24269 (N, Y). 
Ayacuoho : Ccarrapa, between Huanta and Rio Apurimac, Killip & Smith 
22297 (N, Y), 22387 (N, Y), 224S9 (N, Y>, 23209 (N, Y). Aina, be- 
tween Hnanta and Rio Apurimac, Killip <£ Smith 23141 (N, Y). 
Cuzoo: Sandfa, Weberbauer 636 (B, type). Between Torontoy and Macho 
Picchu, Cook d Gilbert 833 (N). Urubamba Valley, Cook <£ Gilbert 
879 (N); Eerrera 1562 (N). 
Bolivia, 
La Paz: Unduavi, Buchtien 2981 (B, N, Y). 
Gochabamba: Incachaca, Steinbach 8800 (Y). 
Local names in southern Peru are: " Boton-boton," " maycha." 
33. Cavendishia montana A. C. Smith, sp. no v. 
Frutex; laminis oblongo-ovatis basi late cuneatis apice subacutis 5 ad 7 
pli-nerviis; inflorescentia breviter racemosa basi bracteis papyracels oblongis 
fimbriatis instruct*; calycis rugosi subprismatici limbo quam tubo breviore, 
lobis apiculatis; corolla subcyllndrica laxe albo-pilosa; staminibus alternatim 
leviter inaequalibus, fllamentis pilosis, tubulis quam loculls duplo longioribus. 
Shrub; branchlets rugose or sub terete, pubescent when young with pale lax 
hairs about 0.4 mm. long, becoming glabrous and cinereous; petioles subrugose, 
narrowly angled, sparsely pilose or glabrous, 6 to 8 mm. long \ leaf blades 
oblong-ovate, 6 to 10 cm. long, 3 to 4.5 cm. broad, broadly cuneate at base, 
subacute or short-acuminate at apex, entire at margins, glabrous or short-pilose 
on nerves on both surfaces, 5 to 7 pli-nerved, the secondary nerves oriented near 
base, ascending, with the mid nerve slightly impressed above, raised beneath, the 
veinlets nearly plane on both surfaces; inflorescence axillary, short-racemose, 
4 to 10 flowered, bracteate at base and partly enveloped by several Imbricate 
papyraceous oblong flmbriate bracts up to 2 cm. long and 1.2 cm. broad; pedicels 
subrugose, glabrous or sparsely puberulous when young, 4 to 6 mm. long, each 
subtended by a deciduous bract similar to those at base of inflorescence, decld- 
uously bibracteolate near base with oblong-lanceolate bractlets about 2 mm. 
long; calyx tube rugose, campanulate, narrowly and bluntly winged to sinuses, 
glabrous (or sparsely pubescent when young), about 3 mm. long and 4 mm. 
in diameter at anthesls; limb erecto-patent, 2 to 2.5 mm. long including lobes, 
the lobes apiculate, less than 1 mm. long, sparsely pilose at margins; corolla 
subcylindric, 17 to 18 mm. long, 5 to 6 mm. in diameter, contracted distally, 
laxly white-pubescent \rith hairs about 0.4 mm. long, the lobes triangular, sub- 
acute, about 1.5 mm. long; stamens 13 to 14 mm. long; filaments dark castaneous, 
distinct or loosely coherent, densely pilose vontrally and at margins distally 
with spreading brown hairs about 0.4 mm. long, 2 mm. and 4 mm. long respec- 
tively ; anther sacs slightly grnnuJar, 3 to 4 mm. long; tubules wide, flexible, 
about 8 mm. and 7 mm. long respectively; style stout, slightly exserted in mature 
flowers, the stigma peltate. 
Type in the U. S. National Herbarium, no. 1,143,663, collected In forest at 
Plnares, above Salento', Department of Caldas, Central Cordillera, Colombia, 
altitude 2,600 to 2,800 meters, August 2 to 10, 1922, by F. W. Pennell (no. 9305). 
Duplicates at B, G, Y. 
DISTRIBUTION; Central Cordillera of Colombia, altitude 2,600 to 3,500 meters. 
\ 
i 
t 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 493 
COLOMBIA. 
Tolima : La Ceja, Quindfo Trail, Killip & Hazen 9520 (N, T). 
Caldas: Magafia, Quindfo Trail, Killip & Hazen 9170 (N, T). 
The present species Is set off from the preceding complex (C. cordifolia and 
relatives) by its minute calyx lobes, short pedicels, and compact inflorescences. 
84. Cavendishia durifolia A. O. Smith, sp. nov, 
Frutex robustus; laminls crasso-coriaceis oblongls tel deltoideo-oblongls basi 
truncatls a pice acuminatis 5 ad 7 pli-nerviis; inflorescentia subfasclculata basl 
bracteis lmbricatis oblongo-ovatis parce puberulis instructs; calycis tubo 
elongato-campanulato saepe fa lea to, limbo breve; corolla subcylindrlca dense 
pubescente; staminibus alternatlm leviter inaequalibus; tubulis quam loculis 
Iongioribus. 
Shrub; branchlets stout, subterete, glabrous, brownish; petioles slightly 
rugose, 7 to 9 mm. long, glabrous; leaf Wades thick-coriaceous, glabrous, oblong 
or deltoid-oblong, 9 to 14 cm. long, 3.5 to 4.5 cm. broad (broadest towards 
base), truncate at base, acuminate at apex, entire and slightly revolute at 
margins, 5 to 7 pli-nerved, the secondary nerves oriented near base, with tbe 
midnerve shallowly impressed above, prominent beneath, the veinlets reticulate, 
plane above, slightly raised beneath; inflorescence axillary, subfasciculate 
(peduncle stout, not more than 5 mm. long), 4 to 10 flowered, bracteate at base 
and enveloped when young by numerous imbricate, submembranous, oblong- 
ovate, sparsely puberulous bracts up to 2.5 cm. long and 1.5 cm. broad; pedicels 
subterete, glabrous or puberulous, 4 to 6 mm. long, each subtended by a bract 
similar to those at base of inflorescence, deciduously bibracteolate near base; 
calyx tube elongate-campanulate, usually strongly falcate, glabrous, nigrescent, 
6 to 7 mm. long, 4 to 4.5 mm. in diameter at anthesis; limb suberect, about 
3 mm. long, including lobes, the lobes triangular, acute, glabrous or sparsely 
puberulous, about 2 mm. long, the sinuses rounded; corolla subcyllndrlc, 20 
to 24 mm, long, about 5 mm. in diameter, densely pubescent with pale spreading 
hairs about 0.5 mm. long, the lobes oblong, subacute, about 2 mm. long; stamens 
about 15 mm. and 16 mm. long, respectively; filaments nigrescent, marginally 
and ventrally pilose with hairs about 0.3 mm. long, 3 mm. and 5.0 mm. long, 
respectively; anther sacs slightly granular, 4 to 5 mm. long; tubules flexible, 
about 9 mm. and 8 mm. long, respectively; stigma peltate; young fruit sub- 
spherical, coriaceous, glabrous, up to 1 cm. in diameter. 
Type In the herbarium of the New York Botanical Garden, collected in forest 
at Murillo, Department of Tolima, Colombia, altitude 2,100 to 2,500 meters, 
December 18, 1917, by F. W. Pennell (no. 3178). 
Dibtbxhution : Known only from the type specimen. 
Distinguished by very short pedicels and a peculiarly elongate calyx tube. 
The leaves, which are rigidly coriaceous and are broadest near the base, are 
also characteristic. 
35. Cavendishia axillarls A. G. Smith, sp. nov. 
Frutex; laminls subsessilibus oblongls vel oblongo-rotundatis basi leviter 
subcordatis apice brevlter acuminatis plnnatinervits; inflorescentia brevlter 
racemosa basi bracteis subcoriaceis ovatls decidue flmbriatis instructa ublque 
glabra; floribus subsessilibus; calycls campanulatl tubo quam limbo longiore; 
corolla coriacea subcylindrlca; fllamentls antherisque compensanter lnaequali- 
bus, fllamentls distinctls glabris. 
Shrub, branchlets subterete or striatej glabrous, brownish; petioles subterete^ 
glabrous, 4 mm. long or less; leaf blades appearing sessile, oblong or oblong- 
rotund, 10 to 13 cm. long, 6 to 8.5 cm. broad, lightly subcordate at base, short- 
acuminate at apex, entire and slightly revolute at margins, glabrous, pinnate- 
494 CONTRIBUTIONS FBOM THE NATIONAL HERBARIUM 
veined, the midvein slightly raised above, prominent beneath, the secondary 
veins 4 to a side, spreading, arcuate near margins, plane or slightly impressed 
above, prominent beneath, the veinlets reticulate, slightly raised above, plane 
beneath; inflorescence axillary, short-racemose (rachis usually less than 1 cm. 
long), 5 to 10 flowered, circumscribed at base and partially enveloped by several 
subcoriaceous, ovate, deciduously fimbriate bracts up to 7 mm. long and 5 mm, 
broad, essentially glabrous in all parts; flowers subsessile, the pedicels 1 mm. 
long or less, each subtended by a bract similar to those at base of inflorescence 
and partially covering the flower individually; calyx coriaceous, the tube short- 
cylindric or campanulate, about 3 mm. long and 3 mm. in diameter at an thesis, 
the limb erect, about 2 mm. long Including lobes, the lobes triangular, acute, 
about 1 mm. long; corolla immature in our specimen, coriaceous, subcyllndric 
or subspherical, about 5 mm. long and 3 mm. in diameter; stamens about 
4.8 mm. long; filaments nigrescent, distinct, carnose, glabrous, about 1 mm. and 
2 mm. long, respectively; anther sacs slightly granular, about 3.5 mm. and 
3 mm. long, respectively; tubules (immature) about 1 mm. long, opening by 
clefts nearly as long; stigma peltate. 
Type in the herbarium of the New York Botanical Garden, collected in forest 
above Cascada Chorron, south of Antizales, Department of Boltvar, Colombia, 
altitude 2,300 to 2,700 meters, February 25, 1918, by F. W. Pennell (no. 4375). 
Distribution : Known only from the type collection. 
A very distinct species of dubious relationship, marked by its crowded few- 
flowered inflorescences, small flowers, and broad subsessile leaves. 
36. Cavendishia guatapeensis Mansf, Notizbl. Dot. Gart. Berlin 9:440. 1025. 
Low shrub; branchlets subterete, glabrous, with a loose cinereous bark; 
petioles subterete, glabrous, 2 to 3 mm. long; leaf blades oblong or oblong- 
ovate, 3 to 5 cm. long, 1.5 to 2.3 cm. broad, truncate or lightly subcordate at 
base, subacute or obtusely acuminate at apex, entire at margins, glabrous, 
sometimes sparsely pilose beneath when young with minute oppressed brownish 
hairs about 0.1 mm. long, 5-pli-nerved, the secondary nerves oriented near base, 
with the midnerve slightly impressed above, raised beneath, the veinlets 
obscurely reticulate; inflorescence axillary, subfascicuiate or short racemose 
(rachis rarely more than 1 cm. long), 8 to 15 flowered, bracteate at base and 
enveloped when young by several papyraceous oblong bracts about 10 mm. long 
and 6 mm. broad, essentially glabrous in all parts; pedicels up to 3 mm. long 
(flowers often appearing sessile), each subtended by a bract similar to those 
at base of racemes, bibracteolate at base with papyraceous oblong acute bract- 
lets up to 8 mm. long, the bractlets sometimes covering the calyx; calyx tube 
short-cylindric, about 2 mm. long and 2.5 mm. in diameter at an thesis; limb 
suberect, about 2.5 mm. long including lobes, the lobes ovate, apiculate, about 
1 mm. long, thick-margined except at apex; corolla subcyllndric, 8 to 9 mm. 
long, 3 to 4 mm. in diameter, dark red, paler at lobes, glabrous or rarely short- 
pubescent with scattered appressed brownish hairs, the lobes triangular, sub- 
acute, about 1 mm. long; stamens about 6.5 mm. and 7.5 mm. long, respectively; 
filaments castaneous, distinct, marginally pilose with hairs up to 0.2 mm. long 
or subglabrous, 2 mm. and 3.5 mm. long, respectively; anther sacs slightly 
granular, 2.5 to 3 mm. long; tubules wide, about 3 mm. and 2 mm. long, 
respectively; stigma truncate. 
Type locality: Rfo Guatap6, between Medellfn and Nare, Department of 
Antioqufa, Colombia, altitude about 2,300 meters. Type collected by Kal- 
breyer (no. 1468). 
DISTRIBUTION: Western and Central Cordilleras of northern Colombia, alti- 
• tude 2,000 to 3,100 meters. 
h. 
1 
SMITH—AMERICAN SPECIES OP THIBATJDIEAE 495 
Colombia, 
BoLfvAR: Below PHramo de Chaquiro, Western Cordillera, Pennell 4300 
(Y), 4307 (Y), 4332 (G, N, Y). 
ANTiOQufa : Rfo Guatap§, between Medellln and Nare, Kalbreyer 1468 (B, 
type, K). Santa Rosa, Lehmann 7527 (K), Medellln, Toro 468 (Y). 
Santa Elena, Archer 1289a (N, Y), 
Touma : Murillo, Pennell 3193 (Y). 
Distinguished not only by its small blunt leaves, but also by its very short 
pedicels and its large bractlets, these sometimes covering the calyces. 
37. Cavendishia quereme (H. B. K.) Benth. & Hook. Gen. PI. 2:570. 1876. 
Thibaudia quereme H. B. K. Nov. Gen. & Sp. 3:274. 1818. 
~Polyboea quereme Klotzsch, Linnaea 24: 31. 1851. 
Ceratostema odoratissimum Willd.; Klotzsch, Linnaea 24:31. 1851, as 
synonym. 
Chupalon quereme Kuntze, Rev. Gen. PI. 2:384. 1891. 
Orthaea tehmannii Fedtsch. & Basil. Not. Syst. Herb. Hort. Bot. U. S. S. R. 
6:24. 1926. 
Low epiphytic shrub about 1 meter high; branchlets subterete, brownish, 
glabrous; petioles terete, slightly rugose, 3 to 7 mm. long, glabrous; leaf 
blades oblong-ovate, 6 to 12 cm. long, 1.5 to 4 cm. broad, cuneate at base, 
caudate-acuminate at apex, entire and slightly revolute at margins, glabrous, 
5-pli-nerved, the secondary nerves oriented near base, ascending, with the mid- 
nerve deeply impressed above, prominent beneath, the veinlets reticulate, 
slightly raised on both surfaces or plane; inflorescence terminal and axillary, 
racemose, essentially glabrous in all parts, 10 to 20 flowered; rachis angled, 
2 to 5 cm. long; pedicels sub rugose, 8 to 12 mm. long, each subtended by an 
oblong acute membranous bract up to 2 cm. long, deciduously bibracteolate at 
base with bractlets up to 1 mm. long, swollen at apex; calyx tube short-cyl- 
indric, 1 to 1.5 mm. long and 3 to 4 mm. in diameter at an thesis; limb sub- 
erect, 2 to 2.5 mm. long including lobes, the lobes ovate, apiculate, about 1.5 
mm. long, thin-margined and rarely sparsely glandular-margined; corolla sub- 
cylindric, 9 to 10 mm. long, about 4 mm. in diameter at base, contracted above, 
the lobes triangular, subacute, about 1 mm. long; stamens 7.5 mm. and 8.5 mm. 
long, respectively; filaments castaneous, distinct, glabrous, about 1.5 mm. and 
3.5 mm. long, respectively; anther sacs nearly smooth, 2 to 2.5 mm. long; 
tubules wide, about 5 mm. and 3.5 mm. long, respectively; stigma truncate. 
Type looalitt : Near Call, Department of El Valle, Colombia, altitude about 
1,000 meters. Type collected by Humboldt and Bonpland. 
Distribution : Western Cordillera of Colombia and mountains of Costa Rica, 
altitude 1,000 to 1,700 meters. 
Colombia,9* 
El Valle: Near Call, Humboldt & Bonpland (B, type collection); Merck 
(?) (B). Upper Rfo Dagua, Lehmann 2954 (type collection of 
Orthaea lehmannii, B, N). Valle del Salado, Triana 2671 (K, N, Y). 
El Cauca : Popay&n, in cultivation, Hart-weg 1221 (K) ; Stuebel 317a (B). 
Between Popayfin and Alto del Cauca, Stuebel 340a (B). 
This species, which appears to be locally common in the Western Cordillera 
of Colombia and again in Costa Rica, is well marked by its bullate leaves and 
by the characters mentioned in the key. A local name in the Call region is 
" quereme." 
* For Costa Rican specimens see page 457. 
84377—32 13 
496 CONTRIBUTIONS PROM THE NATIONAL, HERBARIUM 
38. Cavendishia caudata A. G. Smith, sp. no v. 
Frutex; laminis oblongo-ovatis basi rotundatis vel late cuneatis apice longe 
acuminatis glabris 5-pli-nerviis; inflorescentia subfasciculata basi decidue 
brae teat a; pedieellis brevibus bibracteolatis, bracteolis papyraceis oblongis 
venosis; floribus subglabris; calycis campanulati limbo tubum subaoquante; 
corolla subeylindrica; staminibus alternatim leviter innequalibus, fllarnentis 
parce pilosis, tubulis loculos subaequantibus. 
Shrub; branclilets sub terete, brownish, minutely puberulous; petioles sub- 
terete, slender, puberulous, 2 to 4 mm. long; leaf blades oblong-ovate, 10 to 
13 cm. long, 3 to 4 cm. broad, rounded or broadly cuneate at base, long- 
acuminate at apex (acumen 2 to 3 cm. long), entire and slightly revolute 
at margins, glabrous, 5 pli-nerved, the secondary nerves oriented slightly 
above base, with the mid nerve slightly impressed above, raised beneath, the 
veinlets reticulate, slightly raised on both surfaces; inflorescence axillary 
or termlnnl, subfasciculate, deciduously bracteate at base; pedicels sub terete, 
about 2 mm. long, glabrous, subtended by bracts (?), bibracteolate at middle 
(bractlets papyraceous, oblong, about 8 mm. long and 4 mm. broad, sparsely 
flnibriate, coarse-veined, completely covering the calyx), obscurely articulate 
with calyx; calyx tube campanulate, essentially glabrous, about 2 mm. long 
and 3 mm. in diameter at anthesis; limb suberect, about 3 mm. long includ- 
ing lobes, the lobes ovate, apiculate, about 1.5 mm. long, the sinuses sharp; 
corolla subcylindric, 7 to 10 mm. long, 3 to 4 mm. in diameter, contracted 
distally, glabrous; stamens imperfect in our specimen but apparently sub- 
equal, 6 to 6 mm. long; filaments castaneous, pilose ventrally and at margins 
distally with short pale hairs, about 1.5 mm. and 3 mm. long, respectively; 
anther sacs slightly granular, about 2 mm. long; tubules about 2.5 mm. and 
1.5 mm. long; stigma peltate. 
Type in the herbarium of the New Tork Botanical Garden, collected in 
forest at Antizales, Department of Bolivar, Colombia, altitude 1,700 to 2,000 
meters, February 25 or 20, 1918, by F. W. Penncll (no. 4441). 
Distribution : Known only from the type collection. 
A very unusual species, of which the described specimen is somewhat in- 
complete. However, the short pedicels with large bracts which cover the 
calyces, together with the long-acuminate leaves and slender petioles, serve 
to distinguish it from its allies. 
39. C&vendishia oligantha A. O. Smith, sp, nov. 
Frutex; laminis oblongo-ovatis subbullatis basi cuneatis vel subattenuatis 
apice longe acuminatis 5 ad 7 pli-nerviis; inflorescentia laxe et breviter race- 
mosa decidue bracteata ubique glabra; calycis campanulatl limbo quam tubo 
paullo longiore, lobis brevibus; corolla subeylindrica; fllarnentis antherisque 
compensanter inaequalibus, tubulis quam Ioculis duplo longioribus. 
Shrub; branch lets rugose, slender, glabrous; petioles subrugose, glabrous, 5 to 
7 mm. long; loaf blades oblong-ovate, 9 to 11 cm. long, 3 to 4 cm. broad, some- 
what bullate, cuneate or subattenuate at base, long-acuminate at apex, entire 
and slightly revolutei at margins, glabrous, nit id, 5 to 7 pli-nerved, the second- 
ary nerves oriented above base, sharply ascending, with the midnerve im- 
pressed above, prominent beneath, the veinlets reticulate, slightly raised on 
both surfaces; inflorescence axillary, laxly short-racemose, 3 to 6 flowered, 
deciduously brae ten te (bracts not present in our specimen)) essentially glabrous; 
rachls subterete, slender, flexuose, about 1 cm. long; pedicels subterete, 3 to 
0 mm. lone, the bractlets small, deciduous; calyx tube short-cylindric or cam- 
panulate, rugose, bluntly angled to sinuses, about 1.5 mm. long and 1.5 mm, in 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 497 
diameter at anthesis; limb erect, 2 to 3 mm. long including lobes, the lobes tri- 
angular, acute, about 1 mm. long, membranous-margined and sparsely flmbriate 
with minute glandular hairs; corolla subcylindric, 8 to 9 mm. long, about 3.5 mm. 
in diameter, the lobes reflexed at maturity, triangular, obtuse, about 1 mm. long; 
stamens subequal (alternate filaments and anthers compensatlngly unequal), 
6.5 to 7 mm. long; filaments nigrescent, slender, distinct, marginally pilose or 
glabrous, about 1.5 mm. and 2.5 mm. long, respectively; anther sacs nearly 
smooth, about 1.5 mm. long; tubules flexible, about 4 mm. and 3 mm. long, 
respectively, opening by clefts about half as long; stigma truncate. 
Type in the herbarium of the New York Botanical Garden, collected near 
Tuquerres, Department of Narifio, Colombia, altitude 2,700 meters, 1851 to 
1857, by J. Triana (no. 2675). Duplicate at K. 
Distribution : Known only from the type collection. 
From the preceding species this plant is distinguished by the smaller bract' 
lets, the small calyx lobes, and the leaves being more attenuate at base. 
40, Cavendishia glandulosa A. G. Smith, sp. nov. 
Frutex epiphyticus; ramulis gracilibus pen dulls setosls; laminis lanceolato- 
oblongls basi rotundatis vel truncatis apice acuminatis utrlnque pllosis obscure 
5-pIi-nerviis; inflorescentia subfasciculata vel breviter racemosa basi bracteata; 
calyce parce puberulo et dense glanduloso (glandulis castaneis globosis sessili- 
bus), limbo tnbum subaequante; corolla subcylindrica glabra; staminibus alter* 
natim leviter lnaequalibus, filamentis connatis, tubulis quam loculis paullo 
longloribus. 
Epiphytic shrub with penctent branches; branchlets rugose, slender, lax, 
brownish, densely pubescent with pale brown setiform hairs about 0.8 mm. long; 
petioles rugose, pubescent as the branchlets, about 1 mm. long; leaf blades 
lanceolate-oblong, 35 to 45 mm. long, 10 to 16 mm. broad, rounded or truncate 
at base, acuminate at apex, entire at margins, pilose on both surfaces (more 
sparsely so above) with pale stiff hairs about 0.6 mm. long (hairs not more 
than five per square millimeter except on veins), obscurely 5-pll-nerved, the 
midnerve slightly Impressed above, raised beneath, the secondary nerves as- 
cending from base, slightly raised on both surfaces, the veinlets reticulate, 
plane on both surfaces; inflorescence terminal or axillary, subfasciculate or 
short-racemose (rachis up to 2 cm. long, stout, setose), 5 to 10 flowered, brac- 
teate at base and partly enveloped by several imbricate submembranous oblong- 
obovate puberulous bracts about 15 mm. long and 8 mm. broad; pedicels sub- 
rugose, sparsely pilose distally with spreading hairs about 0.3 mm. long, 8 to 5 
mm. long, each subtended by a deciduous bract similar to those at base of 
inflorescence, obscurely articulate with calyx; calyx coriaceous, sparsely pu- 
berulous as the pedicel and also densely covered with minute castaneous 
spherical sessile glands (glands about 0.1 mm. in diameter, densely covering 
the surface of the calyx tube), the tube campanulate, about 3.5 mm. long and 
3.5 mm. in diameter at anthesls, the limb suberect, about 4 mm. long including 
lobes, the lobes triangular, subacute, 1.5 to 2 mm. long, the sinuses rounded; 
corolla "white" subcylindric, 12 to 14 mm. long, 6 mm. In diameter, slightly 
contracted at base and apex, glabrous, the lobes triangular, subacute, reflexed 
at maturity, about 1.5 mm. long; stamens about 7 mm. and 8 mm. long, re- 
spectively ; filaments castaneous, glabrous or sparsely puberulous distally, about 
3.5 mm. and 4 mm. long, respectively, firmly connate in a tube about 3 mm. 
long; anther sacs nearly smooth, 1,5 to 2 mm. long; tubules flexible, about 
3 mm. and 2 mm. long, respectively; stigma truncate. 
498 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Type in the herbarium of the New York Botanical Garden, collected in shrub 
zone below P&ramo de Chaquiro, Western Cordillera, Department of Bolivar, 
Colombia, altitude 2,800 to 3,100 meters, February 24, 1918, by F. W. Pennell 
(no. 4301), 
Distribution : Known only from the type specimen. 
This plant, which is without close relatives, is one of the most remarkable 
species known from the extraordinarily rich region of northern Colombia. It is 
unique in the possession of a densely gland covered calyx and in its firmly 
connate filaments. 
41. Cavendishia angustifolia Mansf. Notizbl. Bot. Gart. Berlin 9: 439. 1925. 
Compact branching shrub; branchlets subterete, brownish, minutely puberu- 
lous or glabrous; petioles subrugose, sub glabrous, about 2 mm. long; leaf 
blades lanceolate, 3.6 to 0.5 cm. long, 0.6 to 1 cm. broad, truncate at base, 
obtusely short-acuminate at apex, entire at margins, subcoriaceous, glabrous on 
both surfaces, 3-pli-ncrved, the secondary nerves oriented about 5 mm. above 
base, sharply ascending, with the midnerve impressed above, prominent beneath, 
the veinlets slightly impressed above, obscure beneath; inflorescence axillary, 
subfasciculatc or short-racemose (rachis up to 1 cm. long), S to 12 flowered, 
glabrous in all parts, bracteate at base and enveloped by numerous imbricate 
papyraceous oblong bracts up to 18 mm. long and 8 mm. broad; pedicels sub- 
terete, slender, 3 to 5 mm. long, each bracteate at base; calyx tube coriaceous, 
sliort-cylindric or subprismatic, about 2 mm, long and 2 mm. in diameter at an- 
thesis; limb suberect, subcoriaceous, about 2 mm. long including lobes, the lobes 
triangular, blunt, thickened, about 1 mm. long and 1.5 mm. broad, the sinuses 
rounded; corolla submembranous, cylindric, 12 to 13 mm. long, about 3 mm. 
in diameter, the lobes triangular, 1 mm. long; stamens nearly as long as 
corolla; filaments castaneous, distinct, sparsely pilose distally, about 1 mm. 
and 2.5 mm. long, respectively; anther sacs slightly granular, about 2.5 mm. 
long; tubules membra ndus, 9 mm. and 7.5 mm. long, respectively; stigma 
truncate or subpeltate. 
Typb ix)Cality : Carolina, Department of Antioquia, Colombia, altitude 1,850 
to 2,300 meters. Type collected by Kalbreyer (no. 1624). 
Dibtbibution : Known only from the type collection. 
Colombia. 
AntioquIa: Carolina, Kalbreyer 1624 (B, type, K). 
A very handsome and compact little plant, easily identified by its small 
lanceolate leaves. 
42, Cavendishia obtusa A. C. Smith, sp. nov. 
Frutex robustus; luminis oblongis basi truncntis vcl loviter subcordatis apice 
rotundatis subtus punctatis ot, decidue pilosis C ad 7 pli-nerviis; iniloresceutia 
brevlter racemosa basi bracteis ovato-oblongis imbricatis instructa ublque 
glabra; calycis prismatic! rugosi limbo tubum subaequante; corolla subcylin- 
drica; staminibus alternating leviter inaequalibus, tubulis quam loculis 2 ad 
3-plo longioribus. 
Stout shrub; branchlets subterete or angled, brownish, glabrous, up to 6 mm. 
in diameter near their termination; petioles subrugose, 4 to 10 mm. long, 
glabrous; leaf blades oblong, 10 to 22 cm. long, 3.5 to 6 cm. broad, truncate 
or lightly subcordate at base, rounded at apex, entire and strongly revolute at 
margins, glabrous and sometimes sparsely punctate above, punctate beneath 
and deciduously pilose with scattered appressod brownish hairs about 0.3 mm. 
long, 5 to 7 pli-nerved, the midnerve impressed above, very prominent beneath, 
the secondary nerves oriented near base, ascending, slightly impressed above, 
SMITH—AMERICAN SPECIES OP THIBAtTDIEAE 499 
prominent beneath, the veinlets reticulate, plane above, slightly raised beneath; 
inflorescence axillary near ends of branchlets, short-racemose, 10 to 30 flowered, 
bracteate at base and partially enveloped by numerous imbricate papyraceous 
ovate-oblong bracts up to 3 cm. long and 2 cm. broad, glabrous in all parts; 
rachis subrugose, stout, 1 to 3 cm. long; pedicels rugose, 8 to 12 mm. long, 
each subtended by a bract similar to those at base of inflorescence, deciduously 
bibracteolate near base; calyx tube strongly rugose, angled to sinuses, pris- 
matic, 3.5 to 4 mm. long, about 4 mm. in diameter at an thesis; limb suberect, 
coriaceous, 4 to 5 mm. long including lobes, the lobes triangular, apiculate, about 
1.5 mm. long, thick-margined except at apex; corolla subcylindric, dark red, 
white d is tally and sometimes slightly farinose at lobes, about 24 mm, long 
and 6 mm. in diameter, contracted distally, the lobes reflexed at maturity, 
triangular, snbacute, about 2 mm. long; stamens 10, about 18.5 mm. and 19.5 
mm. long; filaments castaneous, distinct, puberulous within distally with brown- 
ish hairs up to 0.3 mm. long, about 4 mm. and 5 mm. long, respectively; anther 
sacs granular, 4 to 4.5 mm. long; tubules wide, about 12.5 mm. and 11 mm. long; 
style exserted in mature flowers, longitudinally striate, the stigma truncate; 
young fruit subcylindric, strongly rugose, up to 8 mm. in diameter. 
Type in the U. S. National Herbarium, no. 1,042,353, collected in thicket on 
slope of Mount Chuscal, west of Zipaquirfi, Department of Cundinamarca, Co- 
lombia, altitude 3,000 to 3,100 meters, October 22, 1917, by F. W. Pennell (no. 
2572). Duplicates at O, T. 
Distribution : Eastern and Central Cordilleras of central Colombia, altitude 
2,200 to 3,100 meters. 
Colombia. 
Cundinamabca : Tequendama, Eolton 631 (K, 1). Between Fusagasugfi 
and Bogotfi, Stuebel 149a (B). Facatativfi, Tracey 269 (K). 
Htjila : East of Neiva, Rushy & Pennell 676 (Y). 
Caldas: Between Salento and Laguneta, Quindlo Trail, Killip & Hazen 
9104 (N, T). Pinares, above Salento, Permell 9303 (N, T). 
This robust and beautiful species is apparently common locally, but has 
previously escaped description. It is readily recognized by the rounded or 
obtuse leaves, the large and rugose calyx, and the numerous large bracts. 
Explanation of Flats 16.—Cavendishia obtuaa, from photograph of type sheet. About 
one-half natural size. 
43. Cavendishia margin a ta A. C, Smith, sp. no v. 
Frutex; laminis oblongis vel ovato-oblongis basi cuneatis apice caudato- 
acuminatis 5-pli-nerviis; inflorescentia subfasciculata vel breviter racemosa, 
basi bracteis imbricatis papyraceis oblongis vel ovatis instructa, ubique glabra; 
pedicellis bibracteolatis, bracteolis linearibus glanduloso-marglnatis; calycis 
limbo tubum subaequante, lobis elongato-triangularibus lateraliter calloso- 
marginatis. Corolla et stamina desunt. 
Shrub; branchlets striate, stramineous, glabrous; petioles subterete, canali- 
culate, 4 to 6 mm. long; leaf blades oblong or ovate-oblong, 8 to 12 cm. long, 
3.5 to 4 cm. broad, cuneate at base, caudate-acuminate at apex, entire and 
revolute at margins, glabrous, nitid, sparsely brown-punctate beneath, 5-pli- 
nerved, the secondary nerves oriented at base, slightly impressed above, raised 
beneath, the veinlets obscurely reticulate; inflorescence terminal or axillary, 
subfasdculate or short-racemose (rachis stout, up to 5 mm. in diameter, less 
than 1 cm. long), 8 to 15 flowered, bracteate at base and enveloped when 
young by several imbricate, papyraceous, oblong or ovate bracts up to 35 
mm. long and 20 mm. broad, glabrous in all parts; pedicels rugose, 6 to 8 
mm. long, each subtended by a deciduous bract similar to those at base of 
\ - 
500 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
inflorescence, bibracteolate at base (bractlets linear, 10 to 13 mm. long, about 
1 mm. broad, glandular-margined, glands about 15 per side, spherical), slightly 
swollen distally; calyx coriaceous, glabrous, the tube short-cylindric, about 
3.5 mm. long and 5 mm, in diameter (past maturity), the limb erect, about 
3.5 mm. long including lobes, tlie lobes elongate-triangular, about 2.5 mm. long, 
acute, each Hanked by a nigrescent elongate callose thickening, the sinuses 
rounded; corolla (?) ; style filiform, 30 to 35 mm. long, the stigma peltate. 
Type in the herbarium of the New York Botanical Garden, collected in 
forest at La Galleru, Micay Valley, Western Cordillera, Department of El 
Cauca, Colombia, altitude 1,400 to 2,100 meters, June 29 or 30, 1922, by E. P. 
Killip (no. 7691). 
Distribution : Known only from the type specimen. 
In spite of the absence of corolla and stamens in the type specimen, this 
species is marked as distinct by its extraordinary bractlets and peculiar calyx 
lobes. The length of the style and the robust aspect of the calyx indicate its 
affinity with the large-flowered group of species. 
44. Cavendishia rigidifolia A. C. Smith, sp. iiot. 
Arbor parva rigidu; laminis laneeolato-oblongis ha si anguste subtruncatis 
apice longe acuniinatis 5-pli-nerviis; inflorescentia fasciculata glabra bractels 
numerosis papyraeeis ovato-oljlongis circumdata; calycis rugosi tubo camp- 
anulato, limbo quuin tubo breviore; corolla cylindrica; fllamentis antherisque 
alternation compensanter inaequalibus, tubulis quam loculis paullo longioribus. 
Small tree with stiff branches; branehlets angled or subterete, rugose, brown- 
ish, glabrous, 4 to 5 mm. in diameter near apices; petioles strongly rugose, 
glabrous, stout, about 3 mm. in diameter, 6 to 10 mm. long; leaf blades lanceo- 
late-oblong, 20 to 25 cm. long, 4 to 5 cm. broad, narrowed and subtruncate at 
base, long-acuminate at apex, entire at margins, thick-coriaceous, glabrous on 
both surfaces, 5-pli-nerved, the second and third nerves oriented 1 to 2 cm. 
above base, ascending to apex, the fourth and fifth nerves oriented from base, 
the 5 primary nerves impressed above, prominent beneath, the velnlets slightly 
raised above, plane beneath; inflorescence axillary near ends of branehlets, 
fasciculate (peduncle stout, short, about 8 mm. long and broad), 10 to 20 
flowered, glabrous in all parts, enveloped by numerous imbricate papyraceous 
ovate-oblong bracts up to 3 cm. long and 2.5 em. broad; pedicels subterete, 
stout, about 3 mm. in diameter, 4 to 6 mm. long, dcciduously bibracteolate near 
base, swollen distally; calyx thick, coriaceous, the tube campanulate, about 
5 mm. long and 6 mm. in diameter at anthesis, the limb suberect, about 3 mm. 
long including lobes, the lobes subtriangular, 2 to 3 mm. long, sparsely glandu- 
lar, the sinuses subacute; corolla thin-carnose, cylindric, about 22 mm. long, 
G to 7 mm. in diameter, the lobes triangular, about 1 mm. long; stamens 
about 17 mm. long; filaments castaneous, distinct, sparsely puberulous, B mm. 
and 7 mm. long, respectively; anther sacs nearly smooth, about 6 mm. long; 
tubules membranous, about 8 mm. and 5 mm. long, respectively; stigma trun- 
cate ; young fruit campanulate, 8 to 10 mm. in diameter, surmounted by the 
incurved calyx lobes. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected at 
Las Minitas, between Medellfn and Manixales, Department of Antioqula, 
Colombia, altitude about 2,400 meters, July, 1921, by Mrs. I. A. Tracey (no. 335). 
DISTRIBUTION: Known only from tbe type specimen. 
Readily distinguished from related species by its large lanceolate leaves. 
45. Cavendishia lehmannii Hoer. Hot. Jahrb. Engler 42:331, 1909. 
Shrub; branehlets subterete, brownish, slender, white-pilose when young with 
spreading hairs up to 0.5 mm. long; petioles terete, slender, pilose as the branch- 
i 
i 
I V 
SMITH—AMERICAN SPECIES OP THIBAUDIEAE 501 
lets, 3 to 4 mm. long; leaf blades oblong or lanceolate-oblong, 8 to 10 cm. long, 
2 to 3 cm, broad, broadly cuneate at base, long-acuminate at apex, entire at 
margins, glabrous above, pilose beneath when young, especially on nerves, with 
hairs about 0.3 mm. long, 5-pli-nerved, the secondary nerves oriented near base, 
ascending, with the midnerve slightly impressed above, prominent beneath, the 
veinlets reticulate, nearly plane on both surfaces; inflorescence terminal or 
axillary, subfasciculate or short-racemose (rachis less than 1 cm. long), 6 to 10 
flowered, bracteate at base and partly enveloped by several submembranous 
oblong glabrous bracts up to 25 mm. long and 12 mm, broad; pedicels subterete, 
densely and persistently pilose with minute spreading pale hairs, 4 to 6 mm. 
long, each subtended by a deciduous bract similar to those at base of inflo- 
rescence, deciduously bracteolate near base with linear, subcoriaeeous, sparsely 
flmbriate bractlets about 4 mm. long; calyx coriaceous, pilose at base as the 
pedicels, the tube subeylindric or campanulate, about 2 mm. long and 3 mm. in 
diameter at anthesis, the limb suberect, about 3.5 mm. long, including lobes, the 
lobes triangular, acute, about 1 nim. long, each margined with several minute 
irregular glands; corolla subeylindric, 18 to 20 mm. long, about 4 mm. in 
diameter, glabrous, the lobes triangular, subacute, about 1 mm, long; stamens 
subequal (alternate filaments and anthers conipensatingly unequal), 15 to 
16 mm. long; filaments nigrescent, minutely pilose distally or glabrous, loosely 
coherent at base, about 3 mm. and 6 mm, long, respectively; anther sacs granu- 
lar, 3.5 to 4 mm. long; tubules erect, wide, about 10 mm. and 7 mm. long, 
respectively; stigma truncate. 
Type locality : Amalfi, Department of Antioqula, Colombia, altitude 1,600 to 
1,800 meters. Type collected by Lehmann (no. 7895). 
DisimBuTiON; Known only from the type locality, 
Colombia. 
ANTioQTrfA: Amalfi, Lehmann 7895 (B, type, F), CCXXX (N). 
This species is distinguished from its allies by the pilose pedicels and calyx 
tube. 
46. Cavendishia gracilis A. C. Smith, sp. nov. 
Frutex gracilis; laminis oblongis vel ovato-oblongis basi cuneatis a pice 
longe acuminatis obscure 5-pli-nervils; inflorescentia breviter racemosa glabra 
basi bracteis submembranaceis oblongis instructa; calycis tubo subrugoso 
campanulato limbum subaequante; corolla cylindrica tenui; filament is anther- 
longioribus. 
Slender shrub up to 5 meters high; branchlets subterete, glabrous, slender, 
brownish, becoming cinereous; petioles rugose, 4 to 6 mm. long, slender, gla- 
brous; leaf blades oblong or ovate-oblong, 4.5 to 7 cm. long, 1.5 to 2.5 cm. 
broad, cuneate at base, long-acuminate at apex, entire at margins, glabrous 
or sparsely and minutely brown-pilose beneath, obscurely 5-pli-nerved, the 
secondary nerves oriented near base, with the midnerve nearly plane above, 
slightly raised beneath, the veinlets reticulate, slightly raised on both sur- 
faces; inflorescence terminal or axillary, short-racemose (rachis slender, not 
more than 2 cm. long), 5 to 10 flowered, glabrous in all parts, deciduously 
bracteate at base with submembranous oblong bracts up to 2 cm. long and 
1 cm. broad; pedicels rugose, 3 to 5 mm. long, each subtended by a deciduous 
bract, deciduously bibracteolate near base with oblong bractlets about 1 mm. 
long; calyx tube subrugose, campanulate, about 2 mm. long and 3 mm. in di- 
ameter at anthesis; limb suberect, submembranous, 1 to 2 mm. long includ- 
ing lobes, the lobes triangular, acute, about 1 mm. long, each flanked by 
an elongate callose thickening; corolla cylindrlc, thin-carnose, 12 to 14 
502 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
mm. long, about 2.5 mm. in diameter, the lobes triangular, subacute, about 
1 mm. long; stamens subequal (alternate filaments and anthers compeneat- 
ingly unequal), 10 to 12 mm. long; filaments castaneous, slender, distinct, 
glabrous or sparsely puberulous dis tally, about 2 mm. and 4 mm. long, re- 
spectively ; anthers pale yellow, submembranous, the sacs slightly granular, 
2.5 to 3 mm. long, the tubules flexible, about 7 mm. and 5.5 mm. long, re- 
spectively ; stigma peltate; young fruit coriaceous, subspherical, up to 5 mm. 
in diameter, surmounted by the persistent calyx limb. 
Type in the U. S. National Herbarium, no. 1,351,688, collected on open 
hillside in mountains east of Las Vegas, Department of Santander, Eastern 
Cordillera, Colombia, altitude 3,000 to 3,200 meters, December 21, 1926, by 
E. P. Killip and A. C. Smith (no. 15871). Duplicate at Y. 
DISTRIBUTION: Eastern and Central Cordilleras of central Colombia, alti- 
tude 1,600 to 3,200 meters. 
Colombia. 
Santander: Las Vegas, Killip d Smith 15997 (N, Y). 
AntioquJa: Santa Rosa, Lehmann 7447 (B, F, G, K, N). 
These specimens seem to merit specific recognition on the basis of their 
slender habit. The specimens from Antioqufa are slightly more robust than 
those from the Eastern Cordillera, but are best placed with this species. 
47. Cavendishia pseudopubescens (Klotzsch) Hoer. Bot. Jahrb. Engler 
42:280. 1900. 
Thibaudia pubescens var. par-mfolia Benth. PL Hartw, 224. 1846. 
IToclesia pseudopubescens Klotzsch, Linnaea 24:33. 1851. 
Chupalon pseudopubescens Kuntze, Rev. Gen. PI. 2:384. 1891. 
Shrub; branchlets sub terete, brownish or cinereous, pubescent with pale 
spreading hairs up to 0.4 mm. long, becoming glabrous; petioles subterete, 4 to 
7 mm. long, sparsely pilose or glabrous; leaf blades oblong or ovate-oblong, 8 
to 11 cm. long, 3.5 to 4 cm. broad, cuneate or rounded at base, obtuse or obtusely 
I 
acuminate at apex, entire and slightly revolute at margins, glabrous or some- 
times puberulous on nerves beneath and sparsely pilose with minute brown 
hairs, 5-pli-nerved, the secondary nerves oriented near base, ascending, with 
the midnerve slightly impressed above, prominent beneath, the veinlets obscurely 
reticulate; inflorescence terminal, subfasciculate (rachls less than 1 cm. long), 
5 to 10 flowered, bracteate at base and partly enveloped by several subcori- 
aceous, ovate, thin-margined, deciduously sparse-puberulous bracts up to 2 cm. 
long and 1.2 cm. broad; pedicels subterete, glabrous, 4 to 5 mm. long, each 
subtended by a deciduous bract, bibracteolate near base with ovate glandular- 
margined bractlets about 1.5 mm. long; calyx coriaceous, glabrous, the tube 
broadly campanula te, about 3 mm. long and 4 mm. in diameter at an thesis, 
the limb suberect, submembranous, about 1 mm. long Including lobes, the lobes 
triangular, apiculate, less than 1 mm. long, thin margined; corolla subcylindric, 
16 to 20 mm. long, about 4 mm. in diameter, glabrous, the lobes triangular, 
subacute, about 1 mm. long; stamens incomplete in our specimens but appar- 
ently subequal and nearly as long as corolla; tubules 8 to 10 mm. long; stigma 
truncate. 
Type locality : Mount Pitayo. Department of El Cauca, Colombia, altitude 
3,100 to 3,400 meters. Type collected by Hartweg (no. 1220). 
Distribution : Known only from the type collection. 
Colombia. 
El Cauca: Mount Pitayo, Hartweg 1220 (B, type, K, Y). 
A species of doubtful affinity, marked by its subpuberulous character. The 
pubescence of the bracts is especially noticeable. 
f 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 503 
48. Cavendishia miconioides A. O. Smith. 
Thibaudia melastomoides H. B. K. Nov. Gen. & Sp. 3 : 272. 1818. 
Proclesia melastomoides Klotzsch, Linnaea 24 : 32. 1851. 
Cavendishia mektstomoidea Hoer. Bot. Jahrb. Engler 42 : 279. 1909, not 
Hemsl. 1881, 
Shrub or low tree with subscandent branches; branchleta subterete or longi- 
tudinally stria te, brownish, glabrous, slender; petioles subterete or slightly 
rugose, glabrous, 3 to 4 mm. long; leaf blades coriaceous, oblong, 5 to 7 cm. long, 
2 to 3 cm. broad, subcordate at base, subacute or obtusely acuminate at apex, 
entire at margins, glabrous, 5-pli-nerved, the secondary nerves oriented near 
base, with the midnerve slightly impressed above, prominent beneath, the vein- 
lets obscurely reticulate; inflorescence short-racemose, axillary near ends of 
branchlets, 5 to 10 flowered, glabrous in all parts, bracteate at base and envel- 
oped when young by several submembranous oblong-ovate bracts up to 2 cm. 
long and 1 cm. broad; pedicels rugose, 5 to 8 mm. long, each subtended by a 
deciduous bract similar to those at base of racemes, deciduously bibracteolate 
near base with bractlets about 1 mm. long; calyx tube campanulate, 1.5 to 2 
mm. long and about 2.5 mm. in diameter at anthesis; limb erecto-patent, about 
2 mm. long including lobes, the lobes triangular, acute, 1 to 1.5 mm, long, 
somewhat thickened at margins, the sinuses rounded; corolla cylindric, 15 to 
17 mm. long, about 4 mm. in diameter, the lobes oblong, subacute, about 1.5 mm. 
long, often reflexed; stamens subequal (alternately differing by about 1 mm.), 
about 13 mm. and 14 mm. long, respectively; filaments castaneous, distinct or 
loosely coherent at base, sparsely pilose distally, about 2 mm. and 4 mm. long, 
respectively; anther sacs slightly granular, 5 to 6 mm. long; tubules flexible, 
5.5 to 7 mm. long; stigma peltate; young fruit spherical, rugose, grayish green, 
glabrous, up to 8 mm. in diameter. 
Type locality: Andes of Colombia, altitude 2,400 to 2,S00 meters. Type 
collected by Humboldt and Bonpland. 
Distribution : Andes of southern Colombia, altitude 1,300 to 2,800 meters. 
COLOMBIA. 
Huila : East of Neiva, Rushy & Pennell 507A, in part (Y), 847 (N, Y), 990 
(F, N, Y). 
El Oauoa: Rfo Paez Valley, Tierra Adentro, Pittier 1226 (N). Popay&n, 
Lehmann 8418 (F, G, K, N). Between Cuatxo Esquinas and Rio 
Piendamo, Pennell & KilUp 6397 (N, Y). 
This species is separated from C, acuminata by its strictly oblong leaves, 
obtuse leaf apex, and subcordate leaf base. Although I have not seen type 
material, the above specimens appear to agree precisely with the original 
description. 
The necessity for a new name has already been discussed, in connection with 
the Central American C. melastomoides. 
40. Cavendishia fl.cirminfl.ta. (Hook.) Hemsl. Biol. Centr. Amer. Bot. 2:272. 
1881. 
Thibaudia acuminata Hook. Icon. PI. 2: pt 111. 1837. 
Thibaudia hookeri Walp. Repert. Bot. 0:412. 1847. 
Proclesia acuminata Klotzsch, Linnaea 24:34. 1851. 
Proolesia benthamiaTtfi Klotzsch, Linnaea 24:33. 1851. 
fThibaudia hendersoni Regel, Gartenflora 24: 258. pi. 8JfO. 1875. 
Chupalon acuminatum Kuntze, Rev. Gen. Pl. 2:383. 1891. 
Chupalon benthamianum Kuntze, Rev. Gen. PI. 2:384. 1891. 
Cavendishia benthamiana Hoer. Bot. Jahrb. Engler 42:278. 1909. 
504 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
ICavendishia hendersoni Hoer. Bot. Jahrb. Engler 42:281. 1909. 
Cavendishia pihjcriana Hoer. Hot. Jalirb. Engler 48:322. 1909. 
Cavendishia sccundiflora Hoer. Bot. Jahrb. Engler 42:323. 1909. 
Shrub up to 10 meters high; branch lets striate, glabrous, brownish or cin- 
ereous; petioles rugose, glabrous, 3 to 7 mm. long; leaf blades ovate or ovate- 
oblong, 6 to 9 cm. long, 2.5 to 4 cm. broad, rounded or broadly cuneate at base, 
acuminate at apex, entire at margins, glabrous or sparsely pilose on both sur- 
faces with scattered short appressed brown hairs, 5 to 7 pli-nerved, the second- 
ary nerves oriented near base, with the midnerve slightly impressed above, 
raised beneath, the velnlets obscurely reticulate; inflorescence axillary or ter- 
minal, subfasclculate or short-racemose, 6 to 15 flowered, bracteate at base and 
partly enveloped by numerous pajiyr:iceoiis oblong-ovate bracts up to 2 cm. long 
and 1 cm. broad; pedicels rugose, 6 to 8 mm. long, glabrous, each subtended by a 
bract similar to those at base of inflorescence, deciduously bibracteolate at 
base with oblong sparsely glandular-margined bractlets about 2.5 mm. long; 
calyx rugose, glabrous, the tube short cylindric, about 3 mm, long and 4 mm. 
in diameter at anthesis, the limb suberect, about 3.5 mm. long including lobes, 
the lobes triangular, acute, about 2 mm. long, sparsely pilose-margined, some- 
times glandular-margined (glands minute, short-stalked) ; corolla subcylindric, 
glabrous, 18 to 25 mm. long, 5 to 6 mm. in diameter, the lobes triangular, sub- 
acute, about 1 mm. long; stamens 13 to 19 mm. long; filaments nigrescent, slen- 
der, puberulous distally with lax hairs about 0.2 mm. long, distinct, about 4 mm. 
and 6 mm. long, respectively; anthers pale yellow, membranaceous, the sacs 
smooth, 4 to 5 mm. long, the tubules flexible, 7 to 11 mm. and 5 to 9 mm. long, 
respectively; stigma peltate. 
Type locality: Quito, Province of Pichincha, Ecuador. Type collected, by 
Hall (no. 40). 
Distribution : Andes of western Colombia to Bolivia, altitude 1,700 to 3,500 
meters. 
Colombia: Purdie (G, Y). 
Caldas: Santa Elena, above Santuario, Pennell 10314 (N, Y). Cerro 
TatamfL, Pennell 10509 (Y), 10538 (Y). 
El Cauca: Rio Palo Basin, Tierra Adentro, Pittier 1071 (N). 
Naeino: Pasto, Jameson 444 (K); Andr6 (K). Tabano, Andr£ (K), 
3004 (K). 
Ecttadob : Jameson 290 (K) ; Sodiro 92/18 (B, type of O. pilgeriana). Mindo, 
AndH (K). Chillo Valley, Anthony & Tate 210 (N). 
Pichincha: Vicinity of Quito, Mount Pichincha, etc., without collector 
(G) ; Jameson (B, G, Y), 166 (K), 226 (K), 321 (K) ; Couthouv, in 
1855 (F, G, Y) ; Hartweg 1219 (B, type of C. benthamiana, K, Y); 
Hill, in 1833 (B) ; Lehmann 160 (N) ; Sodiro 92/16 (B), 92/17 (B) ; 
Hitchcock 20879 (N, Y) ; Ftrmin 172 (N), 320 (N, Y) ; Hall 40 (K, 
type). 
Tunoueagua: Mount Tunguragua, Sodiro 92/18c (B, type of C. secundi- 
florai). Las Juntas, Rose, Pachano, <£ Rose 1Z3169 (N, Y). Ambato, 
J. N. & G. Rose 22378 (N, Y), 23777 (N). 
Loja: Loja, Popenoe 1328 (N). 
Pebu: Lobb (K), Maclean (K). 
AMAZON A e: Chachapoyas, Mat hews 1444 (K). 
HuAnuoo: Panao, Macbride & FeathersUme 2227 (F). Maria del Valle, 
Macbride 3558 (F). 
Junto: Pichis Trail, Enefias, Killip & Smith 25677 (N, Y). 
; i 
SMITH—AMERICAN SPECIES OF THEBAUDIEAE 505 
Bolivia: Ananca, Cerro de Gilusani, Mandon 550 (K). 
La Paz : Coroico, Banff 2373 (B, F, G, N, Y). 
Precisely the same situation as that which prevails in the cortHfoUa bract- 
eata group is found here. The species recognized in this section of the key 
have very slight morphological differences, but names have been given to them 
by previous students and a fairly constant geographic status is observable. 
The typical Ecuador form, with ovate sharp-acuminate subcoriaceous dull 
leaves is not difficult to distinguish from the Venezuelan form (C. aplendens) 
with its oblong coriaceous nitid leaves. But there are several collections, espe- 
cially those from western Colombia, which seem intermediate. The form 
described as C. welierbaueri appears to be somewhat more distinct, but the 
differences are those of habit and are difficult to express. In my opinion C. 
pUgeriana and V. secundiflora show no essential differences from other Ecuador 
material. 
Local names for C. acuminuata in Ecuador are: " Joyapa," " hualicon." 
50. Cavendlshia splendens (Klotzsch) Hoer. Bot. Jahrb. Engler 42:279. 
1909. 
Proclesia splendens Klotzsch, Linnaea 24:34. 1851. 
Chupalon splendens Kuntze, Rev. Gen. PI. 2 : 384. 1891. 
Compact shrub 2 to 4 meters high; branchlets subterete, brownish, glabrous; 
petioles rugose, nigrescent or brownish, slightly angled, 4 to 8 mm. long; leaf 
blades oblong or ovate-oblong, thick-coriaceous, 6 to 10 cm. long, 3 to 5 cm. 
broad, subcordate or truncate or broadly cuneate at base, subacuminate at apex, 
entire at margins, glabrous, sparsely brown-punctate beneath, 5 to 7 pli-nerved, 
the secondary nerves oriented near base, arcuate-ascending, approximate, with 
the midnerve shallowly impressed above, raised beneath, the veinlets reticulate, 
slightly impressed above, plane beneath; inflorescence axillary or terminal, sub- 
fasciculate or short-racemose (rachis less than 1 centimeter long), 5 to 10 
flowered, glabrous in all parts, bracteate at base and partially enveloped by 
papyraceous oblong bracts up to 2 cm. long and 1 cm. broad; pedicels subterete, 
3 to 7 mm. long, each subtended by a deciduous bract, bibracteolate at base 
with ovate acute bractlets about 1.5 mm. long; calyx tube campanulate, about 
2.5 mm. long and 3 mm. in diameter at anthesis; limb suberect, about 2 mm. 
long including lobes, the lobes ovate, acute, about 1 mm. long, glabrous or 
sparsely margined with glandular hairs up to 0.2 mm. long, the sinuses rounded; 
corolla cylindric, 13 to 15 mm. long, about 3.5 mm. in diameter, contracted 
above, the lobes triangular, subacute, about 1 mm. long; stamens about 14 mm. 
and 15 mm. long, respectively; filaments dark castaneous, distinct, pilose at 
margins distally with hairs about 0.2 mm. long, about 2 mm. and 3 mm. long, 
respectively; anther sacs slightly granular, about 4 mm. and 5 mm, long re* 
spectively; tubules wide, flexible, about 10 mm. and 8 mm. long, respectively; 
stigma peltate; young fruit subspherical, up to 7 mm. in diameter, glabrous. 
Type locality-: Venezuela or Colombia. Type collected by Karsten (no 6), 
Distribution : Andes of Venezuela and eastern Colombia, altitude 1,000 to 
3,000 meters. 
Venezuela. 
Federal District: Caracas, IAnden 50 (K), 355 (K) ; Jahn 196 (N). 
Abagua: Colonia Tovar, Moritz 1663 (B, K) ; Fendler 736 (G, K, X) ; 
Pittier 9263 (Gf N, T) ; Jahn 1311 (N, Y); Allart 384 (N). 
M£kida: Paramo del Tambor, John 745 (N). Tabay, Qehriger 405 (X). 
583 (N). 
506 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
CoejOMuia ob Venezuela: Ears ten 6 (B, type). 
Colombia : Purdie <K). 
North kb Santandeb: Province of Ocafia, SclUim 1095 (K). Pflramo del 
Hatico, between Pamplona and Toledo, KiUip & Smith 205S8 (N, Y), 
20074 (N, Y), 20676 (N, Y). 
Santandeb: Las Vegas, Killip & Smith 15978 (N, Y), 15980 (N, Y), 16090 
(N, Y). California, Killip & Smith 16764 (N, Y), Charta, Killip 
d Smith 18950 (N, Y). 
The relationship of this plant to C. acuminata is discussed in connection with 
that species. A local name in Venezuela is "coral." 
51. Caven.dish.ia weber baueri Hoer. Bot. Jahrb. Engler 42: 324. 1909. 
Shrub about 3 meters high; branelilets subterete, stramineous, glabrous; 
petioles terete, castaoeous, glabrous, 6 to 8 mm. long; leaf blades oblong or 
ovate-oblong, 11 to 15 cm. long, 4 to 6 cm. broad, broadly cuneate at base, 
caudate-acuminate at apex, entire at margins, glabrous, 5-pli-nerved, the 
secondary nerves oriented near base, with the midnerve slightly impressed 
above, prominent beneath, the veinlets obscurely reticulate; inflorescence 
axillary or terminal, racemose, 8 to 15 flowered, glabrous in all parts, bracteate 
at base and partly enveloped by several submembranous oblong-ovate bracts 
up to 20 mm. long and 12 mm. broad; rachis subterete, 2 to 4 cm. long at 
maturity; pedicels subrugose, 8 to 10 mm. long, each subtended by a deciduous 
bract similar to those at base of racemes, bibracteolate near base with linear- 
oblong subcoriaceous thick-margined bracelets about 4 mm. long; calyx tube 
campanulate, about 3 mm. long and 4 mm. in diameter at anthesis; limb 
suberect, about 2.5 mm. long including lobes, the lobes triangular, subacute, 
1.5 to 2 mm. long, thick-margined except at apex, usually eglandular; corolla 
carnose, cyllndric, 16 to 18 mm. long, about 5 mm. in diameter, the lobes 
triangular, subacute, about 1 mm. long; stamens 13 to 15 mm. long; filaments 
dark castaneous, carnose, distinct, sparsely puberulous at margins distally, 
about 3 mm. and 6 mm. long, respectively; anther sacs slightly granular, 4.5 
to 5 mm. long; tubules wide, about 6.5 mm. and 5 mm. long, respectively; 
stigma peltate. 
Type jdocality : Moyobamba, Department of Amazonas, Peru, altitude 1,300 
to 1,400 meters. Type collected by Weberbauer (no. 4739). 
Distribution : Andes of Peru, altitude 1,300 to 2,400 meters. 
Peru. 
Amazonas: Moyobamba, Weberbauer 4739 (B, type). 
Cuzco: Marcapata Valley, Weberbauer 7816 (F). Cerro de Cusilluyoc, 
Pennell 14009 (F), 14015 (F). 
The absence of this plant in collections from central Peru is surprising, but 
possibly is owing to scant collecting in that region. It is very close to C. 
acutninata, from which it is distinguished by its larger and longer-acuminate 
leaves. 
52. Cavendishia ulei Hoer. Verb. Bot Ver. Brand. 50:93. 1900. 
Branching shrub 1 to 3 meters high; branchlets subterete, subrugose, 
glabrous; petioles rugose, stout, 2 to 3 mm. in diameter, 7 to 9 mm. long, 
glabrous; leaf blades oblong, 10 to 13 cm. long, 3.5 to 5 cm. broad, rounded at 
base, short-acuminate at apex, entire and slightly revolute at margins, glabrous 
above, glabrous beneath or sparsely pilose with short brown appressed hairs, 
7-pli-nerved, the secondary nerves oriented near base, ascending, with the 
midnerve impressed above, prominent beneath, the veinlets reticulate, nearly 
plane on both surfaces; inflorescence axillary, short-racemose, 10 to 15 flowered, 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 507 
glabrous in all parts, bracteate at base and enveloped when young by numerous 
papyraceous oblong-ovate bracts up to 2 cm, long and 1.6 cm. broad; rachis 
stout, angled, 3 cm. long at maturity; pedicels subrugose, stout, 6 to 8 mm. 
long, each bracteate at base (bracts similar to those at base of inflorescence), 
bibracteolate near base (bractlets lanceolate, about 4 mm. long), slightly 
swollen distally; calyx tube coriaceous, campanulate, 3 to 4 mm. long, 3 to 
5 mm. in diameter at anthesis; limb suberect, 2 to 4 mm. long including lobes, 
the lobes deltoid, acute, 1.5 to 3 mm. long, glandular-margined; corolla thin- 
carnose, 16 to 17 mm. long, 4 to 5 mm. in diameter, the lobes about 1 mm. 
long; stamens about 13 mm. long; filaments dark castaneous, distinct, 
glabrous, 1.5 to 2 mm. and about 3 mm. long, respectively; anther sacs slightly 
granular, 3 to 4 mm. long; tubules membranous, about 9 mm. and 8 mm. 
long, respectively; stigma truncate; young fruit campanulate, surmounted by 
the incurved calyx lobes. 
Type locality: Cerro de Escalero, Department of San Martin, Peru, alti- 
tude 1,300 meters. Type collected by Ule (no. 6789). 
Distribution : Andes of northern Peru, altitude 1,300 to 2,500 meters. 
Pbbu. 
Cajamarca: Huancabamba, Wcbcrbaucr 6122 (E, F). 
San MartIn: Cerro de Escalero, Ule 6789 (B, type, Go). 
This species and the three following are all closely related, but are spe- 
cifically distinct on characters of leaf venation and flower size, as mentioned 
in the key. 
53. Cavendishia capitata (Benth.) Hoer, Bot. Jahrb. Engler 42:279. 1909. 
Thibaudia capitata Benth. PI, Hartw. 142. 1844. 
Proclesia capitata Klotzsch, Linnaea 24 : 34. 1851. 
Chupalon capitatum Kuntze, Rev. Gen. PI. 2 : 384. 1891. 
Stout branching shrub; branchlets subterete or angled, stout, about 5 mm. 
in diameter near apices; petioles rugose, glabrous, stout, 7 to 10 mm. 
long; leaf blades coriaceous, glabrous on both surfaces, oblong or ovate- 
oblong, 14 to 16 cm. long, 8 to 7 cm. broad, rounded or broadly cuneate 
at base, short-acuminate at apex, entire or slightly revolute at margins, 7 to 
9 pli nerved, the secondary nerves oriented near base, ascending, with the mid- 
nerve impressed above, prominent beneath, the veinlets reticulate, plane on 
both surfaces; inflorescence axillary, subfasciculate or short-racemose (rachis 
stout, not more than 1 cm. long), 8 to 15 flowered, glabrous in all parts, en- 
veloped by numerous subcoriaceous oblong-ovate bracts up to 3 cm. long and 
broad; pedicels subterete, stout, 1 to 2 mm. in diameter, about 2 mm. long, 
each bracteate at base and deciduously bibracteolate near base; calyx tube 
coriaceous, campanulate, 4 to 5 mm. long, about 5 mm. in diameter at anthesis ; 
limb suberect, subcoriaceous, about 3 mm. long including lobes, the lobes 
triangular, about 2.5 mm. long, glandular-margined and sparsely glandular 
without; corolla subcoriaceous, cylindric, 22 to 30 mm. long, 4 to 5 mm. in 
diameter, the lobes about 1.5 mm. long; stamens about 22 mm. long; filaments 
dark castaneous, distinct, sparsely pilose distally, 4 mm. and 6 mm. long, 
respectively; anther sacs slightly granular, about 5 mm. long; tubules flexible, 
about 14 mm. and 12 mm. long, respectively; stigma peltate. 
Type locauty : Mount Yangana, Province of Loja, Ecuador. Type collected 
by Hartweg (no. 786*). 
Distribution : Known only from the type collection. 
Ecuador. 
Loja: Mount Yangana, Hartweg 786* (K, type). 
508 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
54. Cavendlshia nobilis Lindl. Bot. Reg. 21: sub pi. 1791, 1836. 
Chupalon nobile Kuntze, Rev. Gen. PI. 2: 384. 1891. 
Stout branching shrub; branchlets terete, stramineous, glabrous, stout; 
petioles subrugose, stout, 2 to 3 nun. in diameter, 7 to 8 mm. long, glabrous; 
leaf blades oblong, 12 to 10 cm. long, 5 to 6 cm. broad, rounded or broadly cune- 
ate at base, acute at apex(?), entire and slightly reflexed at margins, glabrous 
above, glabrous or very sparsely brown-pilose beneath. 7 to 9 pli-nerved, the 
secondary nerves oriented near base, ascending, with the midnerve impressed 
above, prominent beneath, the veinlets reticulate, slightly raised on both sur- 
faces; inflorescence axillary (traumatic in our specimen?), bracteate at base 
with numerous papyraceous oblong-ovate bracts up to 4 cm. long and 3 cm. 
broad (bracts pilose without with spreading white hairs up to 0.5 mm. long) ; 
flowers not seen. 
Type locality: Peru. Type collected by Ma thews (number not cited). 
Distribution : Known only from the Andes of Peru. 
Peru: Mathews 2078 in part (K, type). 
The description of the flower by Lindley is that of a flmver of Pmmmisia 
coarctata, which was collected by Mathews under the same number. As this 
is the type species of Caven-dishia, the matter is of some importance. The 
specimen at Iiew is without flowers, and it is a matter of doubt to me whether 
or not Lindley saw the flowers which belonged to the plant. Hoerold referred 
the name G. nobilis to C. capitata (a later name), but I believe the two plants 
are distinct on the basis of the pubescent bracts of C. nobilis. 
55. Cavendishia urbaniana Hoer. Bot. Jahrb. Engler 42:329. 1909. 
Robust branching shrub up to 4 meters high; branchlets subterete or angled, 
stramineous, glabrous, stout; petioles subrugose, glabrous, stout, 8 to 12 mm. 
long; leaf blades oblong, 14 to 18 cm. long, 4 to 5.5 cm. broad, rounded at base, 
obtusely acuminate at apex, entire and slightly l-cvolute at margins, glabrous 
above, glabrous and nigrescent-punctate beneath, rigidly coriaceous, 7 to 9 pli- 
nerved, the nerves oriented above base to a distance of 5 cm. ascending, with 
tbe midnerve Impressed above, prominent beneath, the veinlets reticulate, nearly 
plane ou both surfaces; inflorescence axillary, subfasciculate or short-racemose 
(rachls stout, up to 15 mm. long), 12 to 20 flowered, glabrous in all parts, en- 
veloped when young by numerous papyraceous oblong-ovate bracts up to 
2.5 cm. long and 2 cm. broad; pedicels subrugose, stout, about 2 mm. in diam- 
eter and 4 mm. long, each bracteate at base and bibracteolate near base, the 
bract lets lanceolate, about 2.5 mm. long; calyx rigidly coriaceous, the tube 
campanulate, about 4 mm. long and 4 mm. in diameter at anthesis, the limb 
suberect, 2 to 3 mm. long including lobes, the lobes triangular, acute, 1.5 mm. 
long, sparsely glandular-margined; corolla thin-carnose, about 22 mm. long, 
5 to 7 mm. in diameter, the lobes triangular, about 1 mm. long; stamens nearly 
as long as corolla; filaments dark castaneous, distinct, puberulous within, 
about 4 mm. and 6 mm. long, respectively; anther sacs nearly smooth, B to 6 
mm. long; tubules about 11 mm. and 8 mm. long, respectively; stigma subpeltate. 
Type locality: Monson, Department of Huftnuco, Peru, altitude 1,600 to 
1,900 meters. Type collected by Weberbauer {no. 3518). 
Distribution : Known only from the type collection. 
Peru. 
HuAnuco: Monson, Weberbauer 3518 (B, type). 
From the three preceding species C. urbaniana is distinguished by having the 
nerves united for some distance above the leaf base. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 509 
DOUBTFUL SOUTH AMERICAN SPECIES 
Thibatjdia cauualata R. & P. Fl. Peruv. Chil. 4: pi. 386. 1802. 
Thibaudia alata Dun.; DC. Prodr. 7:5G2. 1839. 
Proctesia alata Klotzseh, Linnaea 24:34. 1851, 
Chupalon alatum Kuntze, Rev. Gen. PI. 2:384. 1891. 
Cavendisfiia alata I-Ioer. Bot. Jahrb. Engler 42:279. 1909. 
Type IjOOAlitt : Peru. Type collected by Dombey (?). 
The plant figured by Ruiz and Pavon under the name Thibaudia caulialata 
and subsequently described by Dunal as Thibatttfia alata is apparently a true 
Cavendishia, but I am unable to associate it with any species known to me. In 
view of the fact that I have not seen the type, I hesitate definitely to make the 
implied combination. 
Thibaudia martii Meissn. in Mart, FI. Bras. 7:173. 1863. 
Type locality: Brazil, Type collected by Martins. 
From the description of this species I conclude that it is a Cav&n&tshia 
rather than a Thibaudia, but failing to see the type I do not definitely make 
the combination. 
Cavendishia strobilifep.a (II. B. K.) Hoer. Hot. Juhrb. Engler 42:279. 1909. 
Thibaudia strobilifera H. B. K. Nov. Gen. & Sp. 3: 272, 1818. 
Proclesia strobilifera Klotzseh, Linnaea 24:32, 1851. 
Chupalon strobiliferum Kuntze, Rev. Gen. PL 2:384. 1891. 
Type locality: Near Lojn, Province of Loja, Ecuador. Type collected by 
Humboldt and Bonpland. 
I have not seen type material of this species, which is probably allied to or 
possibly equal to C. aouminata. 
18. ORTHAEA Klotzseh, Linnaea 24:23. 1851 
(Findlaya Hook. f. in Benth. & Hook. Gen, PI. 2:569. 1870) 
Calyx tube articulate with pedicel, subcylindric or campanulate; limb sub- 
erect, 5-lobed (rarely more), the lobes triangular, sometimes truncate; corolla 
subcylindric, 5-lobed; stamens 10, alternately unequal, usually about one-third 
as long as corolla; filaments attached to the anther dorsally near its base, 
alternately unequal; anthers submembranous, equal or subequal, the sacs 
nearly smooth, the tubules about as long as the sacs, wide, opening by terminal 
or oblique pores; style filiform, about as long as corolla. 
Low shrubs, frequently epiphytic, with alternate, pinnate-veined or pli-nerved, 
petioled, subcoriaceous leaves; inflorescence axillary or terminal, racemose, 
subfasciculate, or 1 or 2 flowered; flowers pedicelled, the pedicels sometimes 
subtended by large bracts, deciduously bibracteolate. 
Distribution : Tropical South America from Colombia to northern Bolivia 
and eastward to British Guiana and Trinidad. Eleven species are here 
described and in addition there is one name which I am unable to place. 
This genus is marked by short stamens with alternately unequal filaments 
and subequal anthers. O. secundifiora (Poepp. & Endl.) Klotzseh is the type 
species. 
KEY TO THE SPECIES 
Leaves broadly oblong, 5 to 7 cm. broad, cordate at base (Eastern Cordillera 
of Colombia). 
Inflorescence about 15 cm, long, pubescent in all parts, without large bracts. 
1. O. cordata. 
510 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Inflorescence short (rachis about 1 cm. long), glabrous in all parts, with 
cavendishioid bracts  2. 0. cavendishioides. 
Leaves oblong, not more than 4 cm. broad, attenuate, cuneate, or truncate 
at base. 
Anthers opening by terminal or essentially terminal pores. 
Inflorescence nearly as long as or longer than leaves (rachis 4 to 10 
cm. long); flowers second. 
Corolla about 25 mm. long; flowers about 1 per cm, of rachis; leaves 
3 to 4 cm. broad (northern Peru) 3. 0. secundiflora. 
Corolla 11 to 14 mm. long; flowers 2 to 4 per cm. of rachis; leaves about 
2 cm. broad {northern Bolivia) 4, 0. constans. 
Inflorescence short (rachis less than 3 cm. long, rarely 4 cm. long in 
no. 5). 
Leaves chartaceous, the secondary nerves raised above; rachis more than 
1.5 cm. long (Bolivia) 5. 0. boll vi en sis. 
Leaves coriaceous, the secondary nerves plane or impressed above; 
rachis not more than 1 cm. long. 
Branch lets and inflorescence glabrous; pedicels 4 to 6 mm. long; corolla 
about 10 nun. long; anthers less than 2 mm. long (southern Peru), 
6. 0. brevifiora. 
Branchlets and inflorescence often puberulous; pedicels 10 to 12 mm. 
long; corolla about 30 mm. long; anthers 4 mm. long (northern 
Peru) 7. 0. engleriana. 
Anthers opening by oblique clefts. 
Inflorescence a many-flowered raceme 2 cm. long or more; calyx lobes 
triangular, apiculate, about 1 mm. long (Peru). 
Anthers 2.5 to 3 mm. long; calyx limb callose-thickened at margins ex- 
cept at lobe tips; leaves pli-nerved 8. O. weberbaueri. 
Anthers 4 to 4.5 mm. long; calyx limb not callose-thickened at margins; 
leaves often pinnate-nerved  9. 0. pinnatinervia. 
Inflorescence 1 or 2 flowered; calyx limb essentially truncate (Trinidad 
and British Guiana). 
Calyx and branchlets glabrous (Trinidad) 10. O. apophysata. 
Calyx densely hirsute (hairs 3 to 5 mm. long) ; branchlets copiously 
hispid-pilose (British Guiana) 11. 0, hispida. 
1. Orthaea cordata Oliver in Hook. Icon. PI. 25: pi. 2^12. 1895. 
Shrub with elongate branches; branchlets striate, stout, stramineous, sparsely 
puberulous or glabrous; leaf blades subsessile, oblong or ovate-oblong, 13 to 
16 cm. long, 5 to 0 cm. broad, cordate and frequently subainplexlcaul at base, 
obtusely acuminate at apex, entire and recurved at margins, coriaceous, essen- 
tially glabrous above, deciduously pilose beneath with pale spreading hairs 
about 0.3 mm. long, 7-nerved from base, the basal pairs of nerves divaricate, 
the upper pair ascending, with the midnerve nearly plane above, prominent 
beneath, the veinlets copiously reticulate, slightly raised above, plane beneath; 
inflorescence apparently terminal, long-racemose, uniformly pilose on all ex- 
ternal surfaces with pale spreading hairs about 0.3 mm. long; rachis stout, 
about 15 cm. long, striate; pedicels 2 to 4 per centimeter of rachis, rugose, 12 
to 16 mm. long, bibracteolate near base (bracelets lanceolate, about 2 mm. 
long, margined with glandular hairs), swollen distally; calyx tube strongly 
apophysate, about 3 mm. long and 5 mm. in diameter across apophysis; limb 
divided to base, the lobes 5, 6, or 7, lauceolate-tritmgulur, about 4 mm. long 
and 2 mm. broad at base, the sinuses acute; corolla 22 to 2(5 mm. long, 4 to 
0 mm. in diameter at base, gradually contracted above, G lobed (apparently 
L 
I 
[ 
SMITH AMERICAN SPECIES OF THIBAUDIEAE 511 
always); stamens about 4.5 mm. and 5.5 mm. long, respectively; filaments 
castaneous, loosely connate, densely pilose without, with spreading white hairs 
up to 0.5 mm, long, continued into slender connectives which frequently extend 
into tubules, about 2 mm. and 3 mm. long, respectively; anther sacs 3 mm. 
long; tubules erect, wide, about 1.5 mm. long, opening by wide terminal pores; 
stigma subpeltate. 
Type locality: Between Ocafia and Pamplona, Department of Norte de 
Santander, Colombia, altitude about 1,850 meters. Type collected by Kalbreyer 
(no. 1059). 
Distribution: Known only from the type collection. 
Colombia. 
Norte de Santandeb : Between Ocana and Pamplona, Kalbreyer 1059 (B, 
K, type). 
This Is a very distinct species by virtue of its large leaves, long inflorescence, 
and pubescent flowers. 
2. Orthaea cavendishioides A. C. Smith, sp. no v. 
Frutex robustus; laminis oblongis vel ovato-oblongis basi subcordatis apice 
breviter acuminatis subtus parce pilo.sis 7-pli-nerviis; infloreseentia subfascl- 
culata vel breviter racemosa glabra, basi bracteis submembranaceis ovato- 
oblongis Instruct a; calycis tubo rugoso campanulato limbum subaequante; 
corolla subcylindrica; staminibus aiternatim inaequalibus, filamentis pllosis, 
antheris leviter inaequalibus, tubulis quam loculis paullo brevioribus poris 
obliquo terminalibus dehiscentibus. 
Shrub 3 to 4 meters high; branchlets stout, angled or subterete, glabrous, 
brownish or cinereous; petioles rugose, stout, glabrous, 1 to 3 mm. long; leaf 
blades oblong or ovate-oblong, 9 to 12 cm. long, 5 to 6 cm. broad, subcordate at 
base, acute or short-acuminate at apex, entire at margins, glabrous above, 
deciduously pilose beneath with scattered stiff appressed brown hairs about 
0.3 mm. long, 7-pli-nerved, the secondary nerves oriented above base, with the 
midnerve plane or slightly raised above, prominent beneath, the veinlets reticu- 
late, slightly raised on both surfaces; inflorescence axillary, subfasciculate or 
short-racemose (rachis about 1 cm. long), 15 to 25 flowered, glabrous in all 
parts, bracteate at base and partly enveloped by several submembranous, 
ovate-oblong or obovate bracts up to 3 cm. long and 1 cm. broad; pedicels 
rugose, 15 to 20 mm. long, each subtended by a bract similar to those at base 
of racemes, bibracteolate near base with linear, sparsely flmbriate bractlets 
about 4 mm. long; calyx tube rugose, subcylindric or broadly eampanulate, 
about 2.5 mm. long and 3 mm. in diameter at anthesis; limb subspreading, sub- 
membranous, about 2 mm. long including lobes, the lobes apiculate, about 1 
mm. long, the sinuses rounded; corolla light red, paler dlstally, subcylindric, 
27 to 33 mm. long, 5 to 6 mm. in diameter, contracted distally, the lobes tri- 
angular, subacute, 1 to 1.5 mm. long; stamens about 8.5 mm. and 10.5 mm. 
long, respectively; fllaments castaneous, distinct or loosely coherent at base, 
densely pilose distally with brown hairs about 0.3 mm. long, 4.5 mm. and 6 mm. 
long, respectively; anther sacs granular, about 3.5 mm. long; tubules erect, 
wide, about 2.5 mm. and 1.8 mm. long, respectively, opening by slightly oblique 
irregular-edged pores; stigma narrowly peltate. 
Type in the U. S. National Herbarium, no. 1,351,775, collected In woods at 
Las Vegas, Department of Santander, Eastern Cordillera, Colombia, altitude 
2,600 to 2,900 meters, December 23, 1926, by E. P. Killip and A. C. Smith 
(no. 15987). Duplicate at Y. 
Distribution : Known only from the type collection. 
84377—32 14 
512 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Related to 0. cordata Oliver, from which it differs by having the flowers 
glabrous and. the inflorescence very short-racemose. It should be noted that 
this is the only Orthaea in which the anthers are slightly unequal; also that 
it is the only species in which the floral bracts are so conspicuous. The pres- 
ence of these two characters seems to indicate a transitional stage between 
this genus and Cavcndishia. 
3. Orthaea secundiflora {Poepp. & Endl,) Klotzsch, Linnaea 24 : 24. 1851. 
Thibaudia seeundiflora, Poepp. & Endl. Nov. Gen. & Sp. 1:5. pi. 9. 1835. 
Slender shrub with elongate brunches; branchlets subterete or angled, 
smooth, glabrous; petioles subterete, about 6 mm. long; leaf blades elliptic 
or elliptic-lanceolate, 4 to 11 cm. long, 3 to 4 cm. broad, cuneate at base, rigidly 
acuminate at apex, entire, glabrous, 5-pli-nerved, the secondary nerves oriented 
near base; inflorescence axillary, long-racemose, spreading, bracteate at base, 
glabrous on all external surfaces; rachis slender, 7 to 10 cm. long; pedicels 
slender, 12 to 20 mm. long; calyx campanulate, about 4 mm. long, the limb 
suberect, the lobes obtuse, sparsely glandular-margined; corolla subcarnose, 
cylindric-conical, about 25 mm. long; filaments submembranous, connate in the 
basal half, the long ones distally pilose; anthers equal, the sacs sparsely 
setose at base, the tubules slightly longer than the sacs, opening by subterminal 
pores; stigma subhemispherical. 
Type locality: Between Cassapi and Cuchero, Peru. Type collected by 
Poeppig. 
Distribution : Apparently known only from the type collection. 
I have not seen any specimens referable to this species, which I have 
retlescribed and keyed from the original plate and description. 
* 
4. Orthaea constans A. C. Smith, sp. no v. 
Frutex rigidus; laminis oblongo-lanceolatis basi subattenuatis apice acumi- 
natis obscure 5-pli-nerviis; inflorescentia racemosa secunda glabra; calycis 
tubo campanulato quam limbo duplo longiore, lobis aplculatis; corolla sub- 
cylindrica; staminibus alternatim inaequalibus, antheris aequalibus, tubulis 
loculos subaequantibus poris terminalibus dehiscentibus. 
Shrub with stiff branches; branchlets subterete, brownish, glabrous; petioles 
subrugose, glabrous, about 3 mm. long; leaf blades oblong-lancoolate, 7 to 8 cm. 
long, 1.5 to 2 cm. broad, subattenuate at base, sharp acuminate at apex, entire 
at margins, glabrous, obscurely 5-pli-nerved, the midnerve nearly plane above, 
raised beneath, the secondary nerves and veinlets slightly raised or plane on 
both surfaces; inflorescence axillary, racemose, secund, 15 to 20 flowered, 
glabrous in all parts; rachis straight, striate, 4 to 6 cm. long; pedicels rugose, 
8 to 12 mm. long, deciduously bibracteolate near base, swollen distally; calyx 
tube campanulate, 3 mm. long, 3 to 4 mm. in diameter at an thesis; limb sub- 
membranous, 1 to 1.5 mm. long including lobes, the lobes minutely apiculate, 
about 2 mm. across; corolla submembranous, 11 to 12 mm, long, about 4 mm, 
in diameter; stamens about 4 mm. and 5 mm. long, respectively; filaments sub- 
nigrescent, coherent at base, pilose at distal margins with spreading hairs 
about 0.2 mm. long, about 1.5 mm, and 2.5 mm. long, respectively; anther sacs 
slightly granular, 1.5 mm. long; tubules erect, wide, 1.5 mm. long, opening by 
terminal or subterminal pores; stigma subpeltate. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected at 
Sandillani, Department of La Paz, Bolivia, altitude 2,150 to 2,450 meters, 
April, 1866, by R. Pearce. 
Distribution : Andes of Bolivia, altitude 2,150 to 3,100 meters. 
SMITH—AMERICAN SPECIES OP THIBAUDIEAE 513 
Bolivia: Eastern Andes, Pearce 814 (E). 
Apparently most nearly related to 0. secundiftora, from which it is separated 
by the smaller size of all its parts and the inore crowded flowers. 
Explanation of Plate 17.—Orthaea constan$} from photograph of type sheet. About 
one-half natural size. 
5. Orthaea boliviensis Fedtsch. & Basil. Not. Syst. Herb. Hort. Bot. U. S. S. R. 
6:25. 1926. 
Low epiphytic shrub; brancliiets slender, subterete, brownish, glabrous; peti- 
oles rugose, glabrous, 2 to 3 mm. long; leaf blades ovate-oblong, 5 to 8 cm. 
long, 1.5 to 2.5 cm. broad, cuneate at base, long-acuminate at apex, entire 
at margins, glabrous, 5-pIi-nerved, the secondary nerves oriented near base, 
ascending, with the midnerve plane or slightly raised above, raised beneath, 
the veinlets reticulate, slightly raised on both surfaces; infloresceuce axillary 
or terminal, laxly racemose, 6 to 12 flowered, essentially glabrous in all parts, 
deciduously bracteolate at base by several subinembranous oblong bractlets up 
to 1 cm. long; rachis rugose, 1.5 to 3 cm. long; pedicels subrugose, slender, 10 to 
20 mm. long, each subtended by a deciduous bract, bibractcolate near base with 
linear fimbriate bractlets 2 to 4 mm. long, swollen distally; calyx tube rugose, 
subcylindric, about 2 mm. long and 3 mm. in diameter at an thesis; limb sub- 
membranous, about 2 mm. long including lobes, the lobes fipiculate, about 
1 mm. long, sparsely glandular-margined, the sinuses rounded; corolla mem- 
branous, 15 to 33 mm. long, 3 to 4 mm. in diameter, slightly contracted dis- 
tally, the lobes triangular, subacute, less than 1 mm. long; stamens 4.5 to 
6 mm. and 6 to 7.5 mm. long, respectively; filaments pale castaneous, mem- 
branous, connate in the basal half, pilose distally with lax hairs about 0.3 
mm. long, 2 to 4 mm. and 3.5 to 5.5 mm. long, respectively; anther sacs slightly 
granular, about 1 mm. long; tubules wide, about 1.6 mm. long, opening by 
terminal or subterminal slightly flaring pores; stigma truncate. 
Type locality: Bolivia (latitude 15° to 18° south), altitude "2,000 to 13,000 
feet." Type collected by Bridges (no. 103). 
Distribution: Andes of northern Bolivia, altitude about 1,400 meters. 
Bolivia: Bridges (K, type collection?); Pearce 731 (K), Quichara, Pearce, 
in November, 1864 (K). 
La Paz: Tipuani, Buchtien 5517 (B, N), 5518 (N, Y), 7432 (B, N, Y). 
The Bridges specimen here cited, which agrees exactly with the original 
description, has shorter corollas than the other specimens, but surely is con- 
speciflc with them. The rather lax inflorescence and the thin leaves distinguish 
this species from its allies. 
6. Orthaea breviflora A. C. Smith, sp. nov. 
Frutex; laminis oblongis vel ovato-oblongis basi late cuneatis a pice acumi- 
natis subtus decidue pllosis obscure 5 ad 7 pli-nerviis; inflorescentia subfascicu- 
lata vel breve racemosa glabra; calycis tubo subrugoso quam limbo paullo 
breviore; corolla cylindrica; staminlbus alternatim inaequalibus, antheris 
aequallbus brevibus, tubulis quam loculis paullo brevioribus poris terminalibus 
dehiscentibus. 
Shrub; branchlets terete, glabrous, brownish; petioles subrugose, canaliculate 
above, 4 to 6 mm. long; leaf blades thick-coriaceous, oblong or ovate-oblong, 
5 to 8 cm. long, 2 to 2,5 cm. broad, rounded or broadly cuneate at base, acuminate 
at apex, entire and slightly revolute at margins, glabrous above, sparsely pilose 
beneath with appressed brownish hairs about 0.3 mm. long, becoming glabrous, 
obscurely 5 to 7 pli-nerved, the midnerve slightly impressed above, prominent 
beneath, the secondary nerves oriented near base, ascending, plane above, slight- 
514 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
ly raised beneath, the veinlets obscurely reticulate; Inflorescence subfasciculate 
or short-racemose (rachis rugose, rarely more than 1 cm. long), 6 to 10 flowered, 
glabrous in all parts, deciduously bracteate at base with several submembranous 
ovate short-fimbriate bracts up to 5 mm. long; pedicels rugose, 4 to 6 mm. long, 
deciduously bibracteolate near base with linear oblong submembranous bractlets 
about 2.5 mm. long; calyx tube short-cylindric, sub rugose, about 1.5 mm. long 
and 2 mm. in diameter at anthesis; limb submembranous, about 2.5 mm. long 
including lobes, the lobes apiculate, about 1 mm. long, the sinuses rounded; 
corolla red, paler distally, about 10 mm. long, 3 mm. in diameter, contracted 
distally, the lobes triangular, subaeute, about 1 mm. long; stamens about 3 mm. 
and 3.5 mm. long, respectively; filaments castaneous, membranous, distinct or 
coherent at base, densely pilose distally with pale soft hairs about 0.2 mm. 
long, about 1.8 mm. and 2.6 mm. long respectively; anther sacs nearly smooth, 
about 1 mm. long; tubules erect, wide, about 0.7 mm. long, opening by terminal 
slightly flaring pores; stigma truncate. 
Type in the herbarium of the Field Museum of Natural History, no. 558,218, 
collected in forest at Pillahuata, Cerro de Cusilluyoc, Department of Cuzco, Peru, 
altitude 2,200 to 2,400 meters, May 3 to 6, 1925, by P. W. Fennell (no. 13972). 
Distribution ; Known only from the type specimen. 
Characterized by its very small flowers, rigid branchlets, and coriaceous 
leaves. 
7. Orthaea englexiana Hoer. Bot. Jahrb. Engler £2 :320. 1909. 
Small epiphytic shrub; branchlets subterete, cinereous, deciduously pilose 
with short pale spreading hairs; petioles sub rugose, deciduously puberulous, 
2 to 3 mm. long; leaf blades oblong-lanceolate, 8 to 10 cm. long, 2.5 to 3 cm. 
broad, rounded at base, acuminate at apex, entire at margins, glabrous above, 
sparsely pilose beneath (hairs brown, appressed, about 0,2 mm. long), 5 to 
7 pli-nerved, the secondary nerves oriented near base, sharply ascending, with 
the midnerve slightly impressed above, raised beneath, the veinlets reticulate, 
plane or slightly raised on both surfaces; inflorescence axillary, short-racemose 
(rachis puberulous or glabrous, 5 to 10 mm. long), 6 to 10 flowered, cir- 
cumscribed at base by several deciduous, papyraceous, oblong or spatulate 
bracts up to 20 mm. long and 7 mm. broad; pedicels striate, sparsely white- 
pilose, D to 12 mm. long, deciduously bracteate at base, bibracteolate near base, 
the bractlets linear, 1.5 mm. long, puberulous; calyx tube rugose, subcampanu- 
late, sparsely white-pilose, 1.5 to 2 mm. long, 2.5 to 3 mm. in diameter at 
anthesis; limb submembranous, 1 to 1.5 mm. long including lobes, the lobes 
5 or 6, minutely apiculate, about 2 mm. across; corolla submembranous, es- 
sentially glabrous, 28 to 32 mm. long, about 5 mm. in diameter, slightly con- 
tracted at base and apex, the lobes minutely apiculate; stamens about 7 mm. 
and 8.5 mm. long, respectively; filaments castaneous, connate in basal half, 
■ puberulous or subglabrous, about 3.5 mm. and 5.5 mm. long, respectively ; anther 
sacs slightly granular, 2 mm. long; tubules wide, 2 mm. long, opening by 
terminal or subterminal pores; stigma truncate. 
Type locality: Moyobamba, Department of Amazonas, Peru, altitude 1,400 
to 1,500 meters. Type collected by Weberbauer (no. 4753). 
Distribution : Known only from the type collection. 
Peru. 
Amazonas : Moyobamba, Weberbauer 4753 (B, type). 
Marked by its large flowers, cavendishioid bracts, and characters of pu- 
bescence. The bracts are more noticeable in this species than in any other of 
the genus excepting O. cavendisMoides. 
SMITH—AMEBICAN SPECIES OF THIBATJDIEAE 515 
8. Orthaea weberbaueii Hoer. Bot. Jahrb. Engler 42 : 320. 1909. 
Compact shrub up to 3 meters high; branchlets sub terete, brownish, glabrous; 
petioles rugose, 4 to 6 mm. long, glabrous; leaf blades oblong or lanceolate- 
oblong, 8 to 12 cm. long, 2.5 to 3.5 cm. broad, rounded or broadly cuneate at 
base, sharp-acuminate at apex, entire and narrowly revolute at margins, glab- 
rous above, sparsely pilose beneath (hairs brown, appressed, not more than 
0.2 mm. long), 5 to 7 pli-nerved, the secondary nerves oriented near base, 
ascending, with the midnerve nearly plane above, raised beneath, the veinlets 
copiously reticulate, slightly raised or plane on both surfaces; inflorescence 
axillary, racemose, 15 to 25 flowered, essentially glabrous in all parts, the 
flowers secund; rachis straight, stout, 3 to 5 cm. long; pedicels rugose, 8 to 
13 mm. long, deciduously bibracteolate near base (bractlets about 1 mm. long), 
swollen distally; calyx tube strongly rugose, apophysate, about 2.5 mm. long and 
3 mm. in diameter at anthesis; limb sub membra n ous, about 1.5 mm. long 
including lobes, the lobes triangular-ovate, 1 to 1.5 mm. long, callose-margined 
except at apices, the sinuses acute; corolla submembranous, 15 to 18 mm. long, 
about 4 mm. in diameter, the lobes triangular, apiculate; stamens about 4.5 mm. 
and 6.5 mm. long, respectively; filaments castaneous, loosely coherent at base, 
pilose within with pale spreading hairs, about 2.5 mm. and 4 mm. long, respec- 
tively ; anther sacs 1.5 mm. long; tubules 1 mm, long, opening by wide introrse 
clefts nearly as long; stigma truncate or subpeltate. 
Type locality: Sandla, Department of Cuzco, Peru, altitude 2,900 meters. 
Type collected by Weberbauer (no. 684). 
Distribution : Andes of southern Peru and northern Bolivia, altitude 2,500 to 
2,900 meters. 
Pebu, 
Cuzco: Sandla, Weberbauer 684 (B, type). 
Bolivia. 
La Paz: Sandillani, Pearce, in April, 1806 (K). 
This species and the following make up a distinct group within the genus, 
having in common a racemose inflorescence and tubules with oblique pores. 
They are readily distinguished from one another as noted in the key. 
9. Orthaea pinn&tinervia Mansf. Notizbl. Bot. Gart. Berlin 9 :438. 1925. 
Subscandent shrub up to 4 meters high; branchlets subterete, slender, cas- 
taneous or cinereous, puberulous when young with pale hairs about 0.2 mm. 
long; petioles subrugose, puberulous or glabrous, 2 to 4 mm. long; leaf blades 
oblong, 4 to 7 cm. long, 1.5 to 2 cm. broad, truncate at base, long-acuminate at 
apex, subentire at margins, essentially glabrous above, sparsely pilose beneath 
with appressed slender brown hairs about 0.3 mm. long, becoming glabrous, 
pinnate-veined, the midvein slightly impressed above, prominent beneath, the 
secondary veins 2 to 4 per side, ascending or spreading, plane above, slightly 
raised beneath, the veinlets reticulate, slightly raised beneath; inflorescence 
axillary, short-racemose, 8 to 15 flowered, deciduously bracteate at base with 
oblong bracts about 5 mm. long; rachis rugose, 1 to 2 cm. long, glabrous or 
sparsely puberulous; pedicels rugose, 5 to 8 mm. long, glabrous, each subtended 
by a deciduous bract, bibracteolate near base with linear oblong glabrous bract- 
lets 3 to 4 mm. long, slightly swollen distally; calyx tube rugose, subcylindrie, 
slightly apophysate at base, glabrous, 2 to 2.5 mm. long, about 3.5 mm. in 
diameter at base, contracted above; limb spreading, submembranous, about 
3 mm. long including lobes, the lobes apiculate, about 1 mm. long, the sinuses 
rounded; corolla subcoriaceous, pale red, greenish white distally, 15 to 18 
irim, long, contracted distally, the lobes triangular, subacute, about 1.5 mm. 
516 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
long; stamens about 5 mm. and 6.5 mm. long, respectively; filaments castaneous, 
distinct, pilose distally with lax pale hairs up to 0.2 mm. long, about 2 mm. 
and 3 mm. long, respectively; anther sacs slightly granular, slender, glabrous 
or subpuberulous at base, about 2 mm. long; tubules flaring, about 2.5 mm. 
long, opening by broad oval pores about half as long; stigma truncate. 
Type locality: Cosfiipnta, between the tambos Tres Cruces and Tam- 
bomayo. Department of Custco, I'mi, altitude 3,300 to 3,400 meters. Type col- 
lected by "NVeborbauer (no. 6925). 
Distribution : Andes of southern Peru, altitude 3,000 to 3,400 meters. 
Peru. 
Ouzco: Cosfiipata, Webcrbaucr 6925 (B, type, F, N). Marcapata, Weber- 
bauer 7814 (F). 
10. Orthaea apophysata (Griseb.) A. C, Smith. 
Sophoclesia apophysata Griseb, Fl. Brit. W. Intl. 143. 1864. 
Findlaya apophysata Hook. f. in Benth. & Hook. Gen. PI. 2: £569. 1876. 
Subscandent epiphytic shrub; branchlets terete, brownish or cinereous, gla- 
brous; petioles subrugose, glabrous, 3 to 5 mm. long; leaf blades coriaceous, 
ovate, 5 to 7 cm. long, 2.5 to 3 cm. broad, broadly cuneate at base, long- 
acuminate at apex, entire at margins, glabrous, somewhat nitid, pinnate-veined, 
the mid vein slightly impressed or plane above, prominent beneath, the sec- 
ondary veins 2 or 3 to a side, ascending, plane or slightly raised above, raised 
beneath, the vein lets reticulate, plane or slightly raised on both surfaces; in- 
florescence axillary, 1 or 2 llowered, glabrous in all parts; pedicels rugose, 15 
to 17 mm. long, bibracteolate near middle with ovate acute bractlets about 1 
mm. long, swollen distidly; calyx tube slightly rugose, coriaceous, short- 
cylindric, slightly apophysate at base, about 2.5 nun. long at anthesis, 4 ram. 
in diameter at base, contracted above; limb coriaceous, about 1.5 mm. long, 
truncate or minutely 5-apiculate; corolla bright red, carnose, subcylindric, 20 
to 22 mm. long, C to 7 mm. in diameter, contracted distally, the lobes oblong, 
subacute, about 4 mm. long; stamens about 6.5 mm. and 7.5 mm. long, re- 
spectively; filaments castaneous, sub membranous, distinct, distally pilose with 
minute pale hairs, about 3.5 mm, and 5 mm. long, respectively; anther sacs 
slightly granular, about 2 mm. long; tubules about 2 mm. long, opening by 
oblique oval pores less than 1 mm. long; stigma truncate; young fruit sub- 
cylindric, slightly apophyaite, thick-coriaceous, lip to 8 mm. in diameter. 
Type logaijty: Between Arima and Aripa de Abaja, Tocuche, Trinidad. 
Type collected by Purdie (a collection by Criiger also is cited). 
Distribution : Trinidad. 
Trinidad: Purdie 103 (K, type) ; Fendler 489 (K). Tocuche, Criiger 3 (K). 
Ai'ipo, Criiger (G), 1009 (K) ; Broadway 5333 (K, Y). Valencia, 
Britton, Britton, (£ Sazcn 1018 (G, N, Y) ; Britton, Hazcn, d Men del son 
1814 (G, N, Y). 
This species and the following constitute a very distinct section of Orthaea, 
marked by the truncate calyx limb and the solitary or paired flowers. 0. 
aiwphysata is the type species of the genus Findlaya, characterized by Hoerold 
an having 15 stamens. This feature has not been observed in any specimens 
I have seen, and I do not consider the characters just mentioned as of generic 
worth. It may be noted that both these species are found in the hills of 
British Guiana and Trinidad, that the first two species treated in my key are 
found in northeastern Colombia, and that all the remaining species are 
found farther south in the Andes. This correlation of morphological charac- 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 517 
ters with geographic distribution makes the genus an excellent example of 
regional evolution. 
11. Orthaea hispida A. 0. Smith, sp. no v. 
Frutex gracilis ramosus; ramulls dense hispido-pilosis; laminis ovatis basl 
rotundatis apice breve acuminatis subglabris pinnatinerviis; floribus soli tar ils 
vel biois; calyce dense constanterque hispido-piloso subcampanulato, limbo 
subtruncato; corolla glabra; staminibus alternatim inaequalibus, antheris 
aequalibus, tubulis loculos subaequantibus poris ovalibns obliquis dehiscentibus. 
Slender branching shrub; branchlets terete, densely hispid-pilose with dark 
brown spreading hairs 1 to 2 mm. long; petioles subrugose, 2 to 3 mm. long, 
glabrous or sparsely hispid; leaf blades ovate, 5 to 7 em. long, 3 to 4 cm. broad, 
rounded at base, obtusely short-acuminate at apex, entire at margins, glabrous 
or deciduously short-pilose on both surfaces, pinnate-veined, the midvein slightly 
impressed above, raised beneath, the secondary veins 2 or 3 to a side, spreading, 
plane above, slightly raised beneath, the veinlets reticulate, nearly plane on 
both surfaces; inflorescence axillary, 1 or 2 flowered; pedicels subrugose, 3 to 
6 mm. long, hispid as the branchlets, bibracteolate at middle, the bractlets ovate, 
fimbriate, about 1 mm. long; calyx obscured by numerous spreading hairs 
3 to 5 mm, long, the tube subcampanulate, 3 to 4 mm. long, about 3 mm. in diam- 
eter at anthesis, the limb suberect, 2 to 3 mm. long, subtruncate; corolla sub- 
membranous, glabrous, 13 to 16 mm. long, about 3 mm. in diameter, the lobes 
not observed; stamens about 6 mm. and 7 mm. long respectively; filaments 
dark castaneous, distinct, sparsely pilose distally, about 2.5 mm. and 4 mm. 
long, respectively; anther sacs slightly granular, about 2 mm. long; tubules 
erect, about 2 mm. long, opening by oblique oval pores 1 mm. long; stigma 
truncate. 
Type in the herbarium of the Royal Botanic Gardens, Kew, collected in 
British Guiana (probably in the sandstone region toward Mount Roraima), by 
R. Scliomburgk (no. 35). 
Distribution : Known only from the type collection. 
This species is undoubtedly related to the preceding, but Is very distinct in its 
copiously hispid-pilose branchlets and calyces. 
DOTJBTFOX SPBJCEES 
Obthaea abbbeviata Drake; Journ. de Bot. 3:75. 1889. 
Type locality : Rio de San Francisco, Ecuador. Type collected by Poortmann 
(no. 314). 
I have not seen any specimens answering to the description of this species, 
which I take to be allied to 0. enfflericma. 
19. LYSICLESIA A. 0. Smith, gen. nov. 
Calyx cum pedicello articulatus 3-alatus, limbo erecto 3-lobato, lobis submem- 
branaceis lanceolato-triangularibus vel ovatis. Corolla subcylindrica 4 vel 
5-Iobata. Stamina 8 vel 10 alternatim inaequalia quam corolla triplo breviora, 
fllamentis distinctly vel cohaerentibus alternatim inaequalibus, antheris sub- 
membranaceis aequalibus, tubulis loculos subaequantibus poris terminalibus 
dehiscentibus. Frutices parvi (epiphytic! ?), laminis alternis subcoriaceis 
petiolatis pli-nerviis. Flores solitarii in ramulls terminalibus dispositi. 
Calyx tube articulate with pedicel, 3-winged (wings formed by bases of 
lobes); limb erect, 3-lobed, the lobes bractlike, submembranous, lanceolate- 
triangular or ovate; corolla subcylindric, 4 or 5 lobed, the lobes triangular, 
subacute; stamens 8 or 10, alternately unequal, about one-third as long as 
518 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
corolla; filaments distinct or coherent at baseT alternately unequal, attached to 
the anther dorsally near Its base; anthers submembranous, equal, the sacs 
nearly smooth, the tubules about as long as the sjics, wide, opening by terminal 
irregular-edged pores; style filiform, about as long as corolla, the stigma 
truncate. 
Low shrubs, probably epiphytic, with alternate pli-nerved petioled subcorl- 
aceous leaves; flowers solitary on leafless terminal branchlets, the pedicels 
bibracteolate at base. 
Distribution : Andes of northwestern Colombia. Two species are known. 
In structure of corolla and stamens this genus resembles Orthaca, from which 
it differs by its three large calyx lobes. L. caudata is designated as the type 
species. 
Named after Lysides, a" Greek statesman at the time of the Peloponnesian 
War. 
KEY TO TUB SPECIES 
Leaves long-acuminate, 0 to 7 cm. long, 2.5 to 3 cm. broad; calyx lobes ovate, 
12 mm. across near base; stamens 8 (always?), 6 mm. and 8 mm. long, 
respectively; filaments distinct or loosely coherent 1. L. caudata. 
Leaves acute or subacuniinate, 2 to 3 cm. long, about 1 cm. broad; calyx lobes 
lanceolate triangular, 10 mm. across near base; stamens 10, 8 mm. and 10 
mm. long, respectively; filaments connate in lower half 2. 1. minor. 
1. Lysiclesia caudata A. C. Smith, sp. nov, 
Frutex subseandens, generis characteribus; laminis ovatis basi cuneatis apice 
caudato-acuminatis obscure 5-nerviis; staminibus 8. 
Subscandent shrub; branchlets terete, slender, brownish, glabrous; petioles 
subterete, subrugose, glabrous, 4 to 7 mm. long; leaf blades ovate, 6 to 7 cm. 
long, 2 to 3 cm. broad, cuneate at base, caudate-acuminate at apex (acumen 15 
mm. long, about 3 mm. across base), entire and slightly thickened at margins, 
glabrous, obscurely 5-nerved, the midnerve plane or slightly impressed above, 
raised beneath, the secondary nerves oriented from base, slightly raised on 
both surfaces, the veinlets reticulate, nearly plane; flowers solitary on leafless 
terminal branches; rachis subterete, slender, sparsely and deciduously pilose; 
pedicels terete, 18 to 22 mm. long, each subtended by a lanceolate-triangular 
bractlet 3 mm. long, bibracteolate near base with ovate-acuminate bractlets 
about 4 mm. long, swollen distally; calyx tube obscured by wings formed by 
the lobes, about 4 mm. long and 4 mm. in diameter, exclusive of wings; limb 
erect, 3-parted, the lobes ovate, short-acuminute, 26 to 27 mm. long, slightly 
projected at base beyond base of tube, about 12 mm. across at broadest part, 
membranous, copiously longitudinally veined, nearly completely covering the 
corolla; corolla submembranous, about 35 mm. long, 6 mm. in diameter, con- 
tracted distally, white tomentoso distally with lax hairs about 0.5 mm. long, 
4-lobed, the lobes 1.5 mm. long; stamens S, about 0 mm. and 8 mm, long, respec- 
tively; filaments castaneous, membranous, distinct or loosely coherent at base, 
sparsely and laxly pilose distally, about 2.5 mm. and 4.5 mm. long, respectively ; 
anther sacs nearly smooth, about 2.5 mm. long; tubules erect, wide, about 2.5 
mm. long. 
Type in the herbarium of the New York Botanical Garden, collected in 
forest above Cascada ChorrOn, south of Antizales, Department of Bolivar, 
Colombia, altitude 2,400 to 2,800 meters, February 25, 1918, by F. W. Penuell 
(no. 4339). 
r 
SMITH—AMERICAN" SPECIES OF THIBAUDIEAE 519 
Distribution: Known only from the type collection. 
Explanation of Plate 18.—Lysteles ia caudata, from photograph of type sheet. About 
one-half natural size. 
2. Lysiclesia minor A. O. Smith, sp. nov. 
Frutex gracills, generis characteribus; laminis ovato-oblongis basi rotunda tie 
apice apiculatis obscure 5-nerviis; st ami nib us 10. 
Slender shrub; branchlets terete, slender, cinereous, deciduously pilose with 
stiff hairs about 0.2 mm. long; petioles subterete, essentially glabrous, 1 to 2 
mm. long; leaf blades ovate-oblong, 3 to 3.5 cm. long, 1 to 1.5 cm. broad, rounded 
at base, apiculate at apex, entire at margins, glabrous, obscurely 5-nerved, the 
midnerve slightly impressed above, raised beneath, the secondary nerves 
oriented from base, slightly raised on both surfaces, the veinlets reticulate, 
slightly raised on both surfaces; flowers solitary on leafless terminal branches; 
pedicels striate, 12 to 15 mm. long, sparsely pilose, bibracteolate near base with 
triangular bractlets about 2 mm, long; calyx tube obscured by wings formed by 
bases of lobes, about 4 mm. long and 3 mm. in diameter exclusive of wings; 
limb erect, 3-parted, the lobes lanceolate-triangular, acuminate, about 32 mm. 
long, 10 mm. across at broadest part, slightly projected beyond base of tube, 
membranous, sparsely fimbriate and slightly thickened at margins, copiously 
reticulate-veined (veins elevated on both surfaces), nearly completely covering 
the corolla; corolla 28 to 35 mm. long, about 5 mm. in diameter, contracted 
distally, sparsely white-tomentose dlstally, the lobes 5 (?); stamens 10, about 
8 mm. and 10 mm. long, respectively; filaments castaneous, membranous, slight- 
ly coherent, sparsely and laxly pilose distally with hairs up to 0.8 mm. long, 
about 4.5 mm. and 6.5 mm. long, respectively; anther sacs smooth, about 2 mm. 
long; tubules erect, wide, about 3 mm. long. 
Type in the U. S. National Herbarium, no. 938,520, collected south of Amalfl, 
Department of Antioqula, Colombia, altitude 2,000 meters, September, 1884, by 
F. C. Lehmann (no. 4086). 
Distribution : Known only from the type collection. 
20. SATYRIA Klotzsch, Linnaea 24:21. 1851 
{Riedelia Meissn. in Mart. Fl. Bras. 7:172. 1863) 
Calyx tube articulate with pedicel; limb subspreading, 5-lobed (rarely 3 or 
4 lobed), the lobes ovate or triangular; corolla, subcylindric, 5-lobed, the lobes 
triangular; stamens 10, alternately unequal, shorter than corolla (frequently 
about one-third as long) ; filaments firmly connate in a tube, submembranous, 
attached to the anther dorsally near its base, equal; anthers subcorlaceous, 
firm, alternately unequal, the sacs slightly granular, the tubules not clearly 
differentiated from sacs, flaring, opening by broad lateral clefts; style filiform, 
about as long as corolla. 
Low shrubs, frequently epiphytic, with alternate, pti-nerved or pinnate- 
veined, coriaceous, petioled leaves; inflorescence axillary or terminal, racemose 
or subfasciculate, few to many-flowered; flowers pedicelled, the pedicels 
bibracteolate. 
Distribution : Mountains from southern Mexico to Colombia, with a single 
species In Bolivia. Fourteen species are known. 
This very distinct and unmistakable genus is marked by equal connate 
filaments and alternately unequal rigid anthers flaring at the apices. S. war- 
szevrtczii Klotzsch is the type species. 
520 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
KEY TO THE SPECIES 
Inflorescence elongate (rachis 1.5 to 4 cm. long). 
Leaves elliptic-oblong, 3 to 6 cm. long, 1.2 to 1.8 cm. broad; base of anthers 
setose (Bolivia)  1. S. neglecta. 
Leaves ovate to oblong, at least 7 cm. long and 2.5 cm. broad; base of anthers 
glabrous or subpuberulous (Mexico to Peru). 
Leaf base narrowed and cuneate (Central America) 2. S. elongata. 
Leaf base subcordate or rounded. 
Calyx lobes 5, rarely 3 or 4 (South America) 3. S. panurensis. 
Calyx lobes 3 (Costa Rica) 4. S„ triloba. 
Inflorescence short (flowers fascicled or short-racemose, the rachis rarely 
exceeding 1 cm. in length, sometimes up to 1.5 cm. long in no. 6). 
Calyx densely pubescent, the hairs pule, spreading, about 0.3 mm. long; fila- 
ment tube pilose at upper margin with hairs about 0.5 mm. long; leaf base 
subcordate or truncate (northwestern Colombia) 5, S. pilosa. 
Calyx glabrous or minutely puberulous; filament tube glabrous or marginally 
short-pilose with hairs not more than 0.3 mm. long; leaf base cuneate. 
Leaves ovate to oh ovate, twice as long as bivad, not more than 10 cm. 
long (Central America) 6. S. ovata. 
Leaves ovate to oblong, about 3 times as long as broad (except nos. 9 and 
13), at least 10 cm. long. 
Corolla 20 mm. long or more at maturity (rarely 18 mm. long). 
Anthers subcorlaceous (Central America) 7. S. warszewiczii. 
Anthers stiffly coriaceous (Colombia). 
Leaves narrowly oblong, up to 20 cm. long and 7 cm. broad; fila- 
ments and anthers dorsally glabrous 8. S. grandifolla. 
Leaves broadly oblong, up to 35 cm. long and 15 cm. broad; fila- 
ments and anthers dorsally puberulous 9. S. latifolia. 
Corolla less than 17 mm. long at maturity. 
Calyx puberulous. 
Leaves 11 to 20 cm. long; corolla 10 to 32 mm. long (Guatemala). 
10. S. meiantha. 
Leaves 18 to 30 cm. long; corolla 12 to 14 mm. long (Venezuela). 
11. S. nitida. 
Calyx glabrous (Colombia). 
Flowers small (long anthers slightly more than 2 mm. long; corolla 
7 to 8 mm. long)  12. S, minutiflora. 
Flowers larger (long anthers at least 4 mm. long; corolla more 
than 11 mm. long). 
Leaves about twice as long as broad; flowers ample (calyx tube 
4 mm. in diameter; corolla 5 mm. in diameter at base). 
13. S. toroi. 
Leaves about 3 times as long as broad; flowers slender (calyx 
tube 2 to 3 mm. in diameter; corolla 3 to 4 mm. in diameter 
at base)   14. S. breviflora. 
1. Satyria neglecta A. C. Smith, sp. nov. 
Frutex; laminis oblongis vel elliptico-oblongis par vis basi cuneatls apice 
acutis pinnatinerviis; inflorescentia breviter racemosa glabra; calycis cam- 
panulati limbo tubum subaequante, lobis apicnlatis; corolla subcylindrica; flla- 
mentis connatis aequulibus, anthcris basi setosis alternatim inaequallbus, 
tubulis rimis latis dehiscentibus. 
A 
SMITH—AMERICA£7 SPECIES OF THIBATJDIEAE 521 
Shrub; branchlets subterete, striate, glabrous, brownish; petioles subrugose, 
glabrous, 2 to 4 mm. long, narrowly winged above; leaf blades coriaceous, oblong 
or elliptic-oblong, 3 to 6 cm. long, 1.2 to 1.8 cm. broad, cuneate or subattenuate at 
base, acute at apex, entire and slightly revolute at margins, pinnate-veined, the 
midvein slightly impressed above, prominent beneath, the secondary veins 2 or 
3 to a side, ascending, plane above, raised beneath, the veinlets reticulate, 
nearly plane on both surfaces; inflorescence axillary, short-racemose, 10 to 20 
flowered, glabrous in all parts; rachis subterete, 1 to 2.5 cm. long; pedicels 
striate, 6 to 12 mm. long, bibracteolate below middle with lanceolate flmbriate 
bractlets about 1 mm. long, sparsely puberulous or glabrous; calyx tube short- 
cylindric, about 1 mm. long and 2 mm. in diameter at anthesis; limb suberect, 
1 to 1.5 mm. long including lobes, the lobes 5, apiculate, about 0.5 mm. long; 
corolla thin-carnose, slightly rugose, glabrous, about 6 mm. long and 2.5 mm. 
in diameter, contracted at throat, the lobes flaring, somewhat re flexed, obtuse, 
about 1 mm. long; stamens about 4.5 mm. and 5 mm. long, respectively; fila- 
ments castaneous, equal, about 2.5 mm. long, minutely brown-pilose without 
distally; anther sacs slightly granular, setose at base with hairs about 0.4 mm. 
long, about 1 mm. and 1.5 mm. long, respectively; tubules about 1.5 mm. long, 
opening by introrse oval clefts nearly as long; stigma truncate; young fruit 
subspherical, coriaceous, up to 4 mm. in diameter. 
Type in the herbarium of the New York Botanical Garden, collected at 
Mapiri, Department of La Paz, Bolivia, altitude about 775 meters, May, 1886, by 
H. H. Busby (no. 2219). 
Distribution : Known only from the type specimen. 
This is the only species of gatyria known from Bolivia; that it is remark- 
ably distinct from all other species in its small leaves and setose-based anthers 
is in keeping with its isolated geographic position. 
2. Satyria elongata A. 0. Smith, sp. nov. 
Frutex gracilis epiphyticus; laminis lanceolato-oblongis basi cuneatls aplce 
Ionge acuminatis 3 ad 5 pli-nerviis; Inflorescentia racemosa comparate elongata 
glabra; calyce minute puberulento campanulato, limbo quam tubo breviore; 
corolla cylindrica; filament is connittis, antheris basi productis superne dilatatis 
rimls ovalibus dehlscentibus. 
Slender epiphytic shrub; branchlets glabrous or sparsely puberulous when 
young, brownish or cinereous; petioles subrugose, essentially glabrous, 4 to 5 
mm. long; leaf blades lanceolate-oblong, 12 to 17 cm. long, 3 to 4 cm. broad, 
cuneate at base, long-acuminate at apex, entire and slightly revolute at mar- 
gins, glabrous, thick-coriaceous, S to 5 pli-nerved, the midnerve slightly raised 
above, prominent beneath, pinnate-veined (veins inconspicuous, spreading, 5 
to 9 to a side, joining the second and third nerves), the secondary nerves 
oriented from base, ascending near margins, slightly raised on both surfaces, 
the veinlets reticulate, slightly raised; inflorescence axillary near ends of 
branchlets, racemose, 7 to 15 flowered; rachis angled, essentially glabrous, 2.5 
to 5 cm. long, deciduously minutely bracteate at base; pedicels striate, 12 to 
22 mm. long, glabrous, each subtended by a subcoriaceous ovate acute bract 
about 2.5 mm. long, deciduously bibracteolate near base with lanceolate-ovate 
puberulous bractlets about 1.5 mm. long, swollen dlstally; calyx tube coriaceous, 
minutely puberulous with pale hairs about 0.1 mm. long, broadly campanula te, 
2 to 2.5 mm. long, about 3 mm. In diameter at anthesis; limb spreading, thin- 
coriaceous, about 1.5 mm. long including lobes, the lobes 5, ovate, apiculate, 
about 1 mm. long, slightly thickened at margins; corolla minutely puberulous as 
the calyx, 20 to 30 mm. long, about 4 mm. in diameter, contracted at throat, 
the lobes oblong, subacute, about 3 mm. long; stamens 6.5 to 10 mm. and 7.5 
522 CONTRIBUTIONS FROM THK NATIONAL HERBARIUM 
to 11 mm, long, respectively; filaments dark castaneons, faintly puberulous 
distally, 4 to 6 mm. long; anthers nearly smooth, slender and slightly pro- 
duced at base, 4 to 5 mm, and 5 to G mm. long respectively, opening by wide 
oval pores 1 to 1.5 mm. long; stigma truncate; young fruit coriaceous, sub- 
spherical, purplish, up to 7 nun. in diameter, surmounted by the persistent 
calyx limb. 
Type in the U. S. National Herbarium, no. 941,221, collected at Cubilquitz, 
Department of Alta Verapaz, Guatemala, altitude 350 meters, July, 1900, by 
IL von Tuerckheim (no. 7633). Duplicates at G, Y. 
Distribution : Southern Mexico to COsta Rica, altitude 300 to 1,600 meters. 
Mexico. 
Oaxaoa : Montobollo, RcJco 4027 (N). 
Guatemala. 
Alta Vehapaz: CharnJL, Johnson 510 (N). 
Costa Rica: Tucurrique, Tonduz 13371 (N). 
Caktago: Pejivalle, Standlcy rf Valeria 46948 (N). 
The specimens from Costa Rica appear conspeciflc with those from farther 
north, although the range thus indicated is unusual. Probably the species Is 
more closely related to 8. warszcunosii than is implied in the key, but it is 
nevertheless quite distinct on the basis of Its elongate inflorescence. 
3. Satyria panurensis (Benth.) Benth. & Ilook. Gen. PI. 2:508. 1870. 
Thibatidia panurensis Benth.; Meissn. in Mart. Fl. Bras. 7:125. 1803. 
Riedelia bahiensis Meissn. in Mart. Fl, Bras. 7:172. 1803. 
Riedelia panurensis Kuntze, Rev. Gen. PI. 2:3S4. 1891. 
Satyria ulei Hoer. Verb. Bot. Ver. Brand. 50: 03. 1009. 
Shrub; branchlets terete, cinereous, glabrous; petioles rugose, glabrous, 
4 to 6 mm. long; leaf blades oblong, 10 to 13 cm. long, 3 to 6 cm. broad, 
rounded or subcuneate or subcordate at base, acuminate at apex, entire at 
margins, glabrous, nit id, 3 to 5 pli-nerved, the secondary nerves oriented 
from base, spreading near margins, with the midnerve slightly raised above, 
prominent beneath, the veinlets reticulate, slightly raised along the mid- 
nerve, otherwise obscure; inflorescence axillary, racemose, 8 to 20 flowered, 
glabrous in all parts; racbis subterete, 1.5 to 4 cm. long; pedicles subrugose, 
8 to 11 mm. long, bibracteolate near base with triangular, sparsely flmbriate 
bractlets about 1 mm. long, slightly swollen distally; calyx tube subcylindric, 
sparsely puberulous when young, about 2 mm. long and 2 mm. in diameter 
at anthesis; limb spreading, 1 to 2 mm. long including lobes, the lobes ovate, 
apieulate, 0.5 to 1 mm. long; corolla thin-carnose, glabrous or sparsely far- 
inose at apex when young, 10 to 31 mm. long, about 3 mm. in diameter, the 
lobes erect, oblong, subacute, about 1.5 mm. long; stamens 7.5 to 10 mm. 
and 8.5 to 11 mm. long, respectively; filaments nigrescent, 4 to 6 mm. long, 
glabrous, produced into slender connectives, these minutely pilose with hairs 
up to 0.2 mm. long; anthers slender, dark castaneous, produced at base, 5 to 
7 mm. and 6 to 8 mm. long respectively, flaring distally, opening by large oval 
clefts 1.5 to 2 mm. long; stigma truncate. 
Type looauty : Near Panure, Rio Uaupes, State of Amazonas, Brazil. Type 
collected by Spruce (no. 2704). 
Distribution : Foothills of the Andes, upper Amazon basin; also in western 
British Guiana; altitude up to 1,300 meters. 
BRITISH Guiana: Below Kaleteur Falls, Potaro River, Jcnman 827 (K). 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 523 
* 
Colombia. 
* 
Cundinamabca : Pipiral to Susumuco, southeast of QuetamC, Pennell 
1711 (N, Y). 
Peru. 
Saw Mabt/n; Cerro de Ponasa, Vie 6672 (B, type of B. ulei, Go). 
Lobeto: Mouth of Rio Santiago, Tessmann 4662 (B). TImbuchi, Rfo 
Nanay, L. Williams 934 (F, Y). Manflnfa, upper Rio Nanay, L, Wil- 
liam* 1108 (F, Y). 
Brazil. 
Amazonas: Panure, Rio Uaupes, Spruce 2704 (K, type, G). Rio Japura, 
Martins (type collection of Riedelia 'bahiensis, K, Y). 
The above-cited specimens, in spite of their widely separated stations, seem 
to me conspecific. The differences are very slight and appear purely in- 
dividual; for instance, the leaves of the Guiana specimen are slightly the 
broadest and the corollas somewhat longer. The three types involved show 
no consequential differences. The distribution parallels that of Psanimisia 
putitnensis and of many other plants of the foothills at the edge of the 
Amazon basin, and the species is probably to be found at many other points 
in this sparsely collected region. The application of the specific name 
"bahiensis" by Meissner was apparently due to a mistake in labels, but 
fortunately the name does not have to be retained. 
4. Satyria triloba A. C. Smith, sp. nov, 
Frutex gracilis epiphyticus; laminis ovatis vcl oblongo-ovatis basi rotundatls 
apice acuininatis 5-pIi-nerviis; infloreseentia racemosa; calyce campanulato 
rugoso minute puberulento, limbo tubum subaequante 3-lobato, lobls ovatis; 
corolla cylindrica; fllamentis connatis aequalibus, antheris basi productis 
superne dilatatis. 
Slender epiphytic shrub; branchlets terete, cinereous, glabrous; petioles 
rugose, sparsely puberulous or glabrous, 3 to 5 mm. long; leaf blades ovate or 
oblong-ovate, 7 to 10 cm. long, 3.5 to 4.5 cm. broad, rounded at base, acuminate 
at apex, entire and slightly thickened at margins, 5-pli-nerved, the midnerve 
slightly impressed above, prominent beneath, the secondary veins oriented near 
base, ascending near margins, plane above, slightly raised beneath, the veinlets 
reticulate, slightly raised beneath; inflorescence axillary, short-racemose, 6 to 
12 flowered; rachis striate, 1.5 to 3 cm. long, minutely puberulous, becoming 
glabrous, circumscribed at base by several imbricate ovate subcoriaceous 
bractlets up to 2 mm. long; pedicels rugose, 8 to 12 mm. long, bibracteolate 
below middle with ovate-lanceolate short-fimbriate bractlets up to 2 mm. long, 
slightly swollen distally; calyx tube rugose, minutely puberulous, campanulate, 
about 2 mm. long and 2 mm. in diameter at anthesis; limb spreading, about 
2 mm. long including lobes, the lobes 3, frequently reflexed, ovate, acute, about 
2 mm. long, 2 to 3 mm. across; corolla thin-carnose, about 25 mm. long, 2.5 to 
3 mm. in diameter, minutely puberulous, 5-lobed, the lobes oblong, subacute, 
about 1 mm. long; stamens about 8 mm. and 9 mm. long, respectively; fila- 
ments dark castaneous or nigrescent, glabrous, about 4 mm. long, leading into 
slender connectives, these sparsely puberulous; anthers dark castaneous, 
produced at base, about 5 mm. and 6 mm. long, respectively, opening by oval 
clefts about 1 mm. long; stigma truncate. 
Type in the U. S. National Herbarium, no. 941,207, collected at "Fougeraies 
du General, valise du Diquis," Costa Rica, altitude 700 meters, February 2, 
1898, by H. Pittier (no. 12147). 
DisTBimmoN: Known only from the type specimen. 
L 
524 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
This species, which boars a strong superficial resemblance to the preceding, 
is distinct ou the basis of its 3-lobed calyx, which here is a constant character. 
5. Satyria pilosa A. C. Smith, sp. nov. 
Frutex robustus; larainis oblongis vel obovato-oblongis basi trunc.itis vel 
leviter subcordatis apice acutis 7-pli-nerviis; intloreseentia subfaseiculata ubique 
ulbo-pilosa; calycis rugosi cumpanulati limbo tuburn subaequante, lobis apicu- 
latis; corolla cylindrical; fllamentis membranaceis connatis, anther is inaequali- 
bus rim is ovalibus latis dehiscentibus. 
Stout shrub; branchlets terete, cinereous, glabrous; petioles strongly rugose, 
glabrous, stout, up to 0 mm. long; leaf blades oblong or obovate-oblong, up to 
18 cm. long and 7 cm. broad, truncate or slightly subcordate at base, acute at 
apex, entire and revolute at margins, glabrous, 7-pli-nerved, the secondary 
nerves oriented above base for a distance of 3 to 5 cm., sharply ascending, with 
the midnerve impressed above, strongly prominent beneath, the veinlets 
copiously reticulate, obscure above, nearly plane beneath ; inflorescence axillary, 
sub fasciculate; pedicels subterete, about 3 mm. long, pilose with spreading white 
hairs about 0.2 mm. long, bibractoolate near middie with ovate flmbriate 
bractlets about 1 mm. long, slightly swollen distally; calyx tube rugose, 
campanulate, densely white-pubescent with spreading hairs up to 0.3 mm. long, 
about 2.5 mm. long and 3 mm. in diameter at anthesis; limb erect, pubescent, 
2 to 3 mm. long including lobes, the lobes 5, apiculate, about 0.5 mm. long; 
corolla laxly pilose, becoming glabrous proximally, 17 to 1& mm. long, 3 to 4 mm. 
in diameter, contracted distally, the lobes subacute, about 1.5 mm. long; 
stamens about 0 mm. and 6.5 mm. long, respectively; filaments castaneous, 
membranous, densely pilose at upper margins with hairs about 0.5 mm. long, 
about 3.5 mm. long; anthers dark castaneous, slightly incurved at base, about 
3.7 mm. and 4.2 mm. long, respectively, opening by broad oval clefts about 1 mm. 
long. 
Type in the herbarium of the New York Botanical Garden, collected in 
forest at Antizales, Department oC Bottvar, Colombia, altitude 1,200 to 1,800 
meters, February 25 or 20, 1918, by F. W. Pennell (no. 4421). 
Distbiuutton : Known only frum the type collection. 
The present specimen is very imperfect, but is sufficiently complete to permit 
its recognition as a distinct species marked by the pubescent flowers and the 
marginally pubescent filament tube. Apparently the inflorescence is several 
flowered, the flowers spreading from a coriaceous peduncle on the larger 
branchlets. 
6. Satyria ovata A. C. Smith, sp. nov. 
Frutex epipliyticus; latninis ovatis basi cuneatis apice obtusis 3 ad 5-pIi- 
nerviis; inflorescentia subfaseiculata vel breviter racemosa; calycis rugosi cam- 
panulati limbo tubum subaequante 5-lobato, lobis apiculatls; corolla cylindrica; 
filament is connatis, antheris inaequalibus rimis latis ovalibus dehi scent ib us. 
Epiphytic shrub about 1 meler high; branchlets terete, stout, cinereous, 
glabrous; petioles rugose, glabrous, 5 to 10 mm. long; leaf blades ovate, thick- 
coriaceous, 5 to 10 cm, long, 3 to G cm. broad, cuneatc or subattenuate at base, 
obtuse at apex, entire and slightly thickened at margins, glabrous, 3 to 5 pli- 
nerved, the secondary nerves oriented near base, with the midnerve nearly 
plane above, raised beneath, the veinlets reticulate, plane above, plane or 
slightly raised beneath; inflorescence axillary, subfasciculate or short-racemose, 
4 to 10 flowered; rachis angled, glabrous, 1 to 1.5 cm. long, deciduously minutely 
bracteate at base; pedicels rugose, glabrous, somewhat flexuose, 10 to 16 mm. 
long, each subtended by a subcoriaceous, ovate, sparsely flmbriate bract about 
J 
SMITH—AMERICAN" SPECIES OF THIBAUDIEAE 525 
1.3 mm. long, deciduously bibracteolate below middle, slightly swollen distally; 
calyx tube rugose, glabrous or deciduously puberulous, campanulate, about 2 
mm. long and 2.5 mm. in diameter at anthesisj limb spreading, about 1.5 mm. 
long including lobes, the lobes 5, triangular, apieulate, submembranous, less than 
I mm. long; corolla glabrous or minutely pilose when young, about 20 mm. long 
and 4 to 5 mm. in diameter, contracted distally, the lobes subacute, about 1.5 
mm. long; stamens about 6.5 mm. and 7.5 mm. long, respectively; filaments dark 
castaneous, membranous, pilose at margins distally, when young, becoming 
glabrous, about 3.5 mm. long; anthers about 3.5 mm. and 4.5 mm long, re- 
spectively, opening by wide oval pores about 1.5 mm. long; stigma truncate. 
Type In the U. S. National Herbarium, no. 44,897, collected in Nicaragua, 
1853 to 1856, by C. Wright. 
Distribution : Guatemala to Costa Rica. 
Guatemala: Friedrichsthal 3 (K). 
Costa Rica. 
Guanaoaste: Quebrada Serena, southeast of Tilar&n, Standley & Valerio 
46262 (N). 
The three specimens cited are certainly con specific, the species being marked 
by the comparatively small broad leaves. The flower dimensions are taken from 
the type specimen. The Costa Rican specimen is identical in habit, but bears 
less mature flowers which are somewhat pubescent. The anthers are similar 
to those above described but the filaments are much shorter, forming a tube 
which is distinctly and regularly pilose at the apical margin. 
7. Satyria warszewiczii Klotzsch, Linnaea 24:22. 1851. 
Satyria clonantha Klotzsch, Linnaea 24:22. 1851. 
Riedelia warszewiczii Euntze, Rev. Gen. Pl. 2: 384. 1891. 
Riedelia clonantha Euntze, Rev. Gen. PI. 2 : 384. 1891. 
Epiphytic shrub up to 4 meters high; branchlets subterete, stout, glabrous, 
brownish or cinereous; petioles rugose, dark brown, narrowly winged above, 8 
to 16 mm. long; leaf blades oblong or ovate-oblong, 10 to 23 cm. long, 2 to 9 
cm. broad, narrowly cuneate at base, acuminate at apex, entire and slightly 
revolute at margins, thick coriaceous, glabrous (rarely pilose beneath with 
appressed brownish hairs about 0.25 mm. long), 3 to 5 pli-nerved, the secondary 
nerves oriented near base, with the midnerve slightly raised above, prominent 
beneath, the veinlets copiously reticulate, slightly raised on both surfaces or 
plane; inflorescence frequently copious, short-racemose, often borne in clusters 
on stout branchlets, deciduously bracteate at base, 8 to 30 flowered; rachis 
striate, glabrous, 5 to 10 mm. long; pedicels rugose, glabrous, 15 to 25 mm. 
long, each subtended by a submembranous oblong liractlet 3 to 4 mm. long, 
deciduously bibracteolate below base, swollen distally; calyx tube rugose, 
coriaceous, glabrous, broadly campanulate, sometimes apophysate, about 2 mm. 
long and 3 to 4 mm. in diameter at anthesis; limb thin-coriaceous, 2 to 3 mm. 
long, including lobes, the lobes triangular, apieulate, 1 mm. long or less; corolla 
thin-carnose, glabrous, 18 to 28 mm. long, 4 to 5 mm. in diameter, contracted 
at throat, the lobes subacute, about 1 mm. long; stamens 7 to 9 mm. and 8 to 
II mm. long, respectively; filaments castaneous, submembranous, 3 to 5 mm. 
long, free, distally and marginally pilose; anthers about 5 mm. and 6 mm. 
long respectively, opening by wide oval clefts 2 to 2.5 mm. long; stigma trun- 
cate ; young fruit rugose, short cylindric, up to 6 mm. in diameter. 
Type locaijty : Volcfin Barba, Costa Rica. Type collected by Warszewicz, 
Distribution : Southern Mexico to western Panama, altitude 1,000 to 2,400 
meters. 
526 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
The typical form, with consistently 3-nerved leaves, the blades oblong- 
lanceolate and 2 to 3 cm. broad, is represented by the following specimens: 
Costa Rica: Volc&n Burba, Warszewicz (B, type). Cerro Jucosal, Stork 
1111 (P). 
Heukdia: Yerba Buena, Standlcy t£- Valcrio 49037 (N). 
Cabtago: Santa Clara de Cartago, Maxon <0 Harvey 8228 (N). 
Pakama ; Veraguas, Bridges, in 1S55 (K). 
The common form, with 5 (sometimes 3) nerved leaves, (he blades oblong 
and more than 3 cm. broad, is represented! by the following specimens: 
MEXICO. 
Chiapas: Near Tumbala, Nelson 3328 (G, N), 
Guatemala. 
Alta Vebapaz: Finca Sepacuit6, Cook <C Origgs 475 (N). 
Costa Rica: Endrca 232 (K). Cucaracha, Lankcster 100 (K). Canas Gordas, 
Pitticr 11200 (N). San Jerfinimo, Wcrckld 11301 (N). Esmeralda, 
Tonduz 1881 (F, N). San Ramon, Tonduz 17830 (B, F, K). Agua 
Caliente, Stork 1050 (F). 
At.a.iuttA: Volcun roils, J. J). Smith 6637 (N). Fraijanes, Standley & 
Toircs 47431 (N), 47620 (N). 
Hebedia: Ccrros de Zurquf, Standley c€ Valcrio 50266 (N), 50648 <N). 
San Joatf: La Palma, Werckl6 11605 (N) ; Tonduz 12438 (N) ; Standlcy 
38108 (N). La Ilondurn, Standley 36201 (N), 37657 (N). El Copey, 
Tonduz 12232 (F, N, Y); Standlcy 42070 (N). Santa Maria de 
Dota, Standlcy 41647 (N), 42286 (N), 42978 (N) ; Standley & Valcrio 
43440 (X), Between Aserrf and Tarbaca, Standley 34194 (N). Las 
Nubes, Standlcy 38601 (N). Zurqul, Standley & Valerio 48148 (N). 
Oabtago: El Mufieco, south of Navarro, Standley 33496 (N). Pejivalle, 
Standlcy rf Valcrio 47120 (N). Carpintera, Stork 2064 (F). 
Panama. 
ChiriquI : El Boquete, Secmann 1172 <K) ; Pittier 3014 (F, N). 
Veraguas: Warszewioz (B, type of S. clonantha). 
In proposing the genus Satyr ia, Klotzsch describes two species, ivarszciviczii 
and clonantha, but comparison of his descriptions and study of a large 
series of material convinces me that the two specimens described are 
extremes of a very common and variable species. The name warszcwlczii is 
here retained, although most specimens are closer to the type of 8. clonantha 
than to that of S. warszctciczii. The above flower dimensions are near the 
average; frequently the anthers are up to 10 mm. in length. Locsil names 
are: " Colmillos," " muelas," " arrayftn," " uva." 
All the above-cited specimens are from Central America. Following are 
descriptions of two Colombian plants which I am not thoroughly convinced 
should be maintained as species distinct from JSf. warszewiczii. However, until 
further exploration of eastern Panama and northern Colombia gives us a 
more complete series of specimens, it seems best to recognize them. 
8. Satyria grandifolia Hoer. Bot. Jahrb. Engler 42: 319. 1909. 
Stout branching shrub; branchlets terete, brownish, glabrous; petioles 
rugose, subterete, stout, 9 to 12 mm. long; leaf blades oblong, 15 to 22 cm. 
long, 4.5 to 7 cm. broad, acute at base, subacute or short-acuminate at apex, 
entire and slightly revolute at margins, glabrous, thick-coriaceous, 5-pli-nervert, 
the secondary nerves oriented slightly above base, with the mid nerve slightly 
impressed above, prominent beneath, the veinlets reticulate, slightly raised on 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 527 
both surfaces; inflorescence axillary, frequently on leafless branchlets, short- 
racemose, 6 to 10 flowered; rachlses stout, 5 to 8 mm. long, solitary or in small 
clusters, glabrous; pedicels subrugose, glabrous, 10 to 16 mm. long, each 
subtended by a subcoriaceous, oblong, sparsely fimbriate bract about 3 mm. 
long, bibracteolate near base with smaller bractlets; calyx tube broadly cam- 
panulate, subrugose, glabrous, 1 to 1.5 mm. long, 3 mm. in diameter at antbesis; 
limb spreading, about 2 mm. long including lobes, the lobes broadly ovate, 
aplculate, about 1 mm. long and 3 to 4 mm. broad; corolla narrowly cyllndric, 
25 to 30 mm. long, about 3 mm. in diameter at antbesis, contracted distally, the 
lobes small; stamens 8 mm. and 9 mm. long, respectively; filaments sub- 
nigrescent, sparsely pilose at distal margins, about 3 mm. long; anthers 7 mm. 
and 8 mm. long, respectively, opening by broad oval clefts about 3 mm. long; 
stigma truncate. 
Typh locality: Cienegueta, Cordillera del Chocfi, Intendencia of El Choc6, 
Colombia, altitude 2,100 meters. Type collected by Triana (no. 2804). 
Distribution : Known only from the type collection. 
Colombia. 
El Choo6: Cienegueta, Triana 2694 (B, type, K). 
This species is distinct from 8. warszewiczii on the basis of its unusually 
rigid anthers. 
9. Satyria latifolia A, C. Smith, sp. nov. 
Frutex robustus; laminls late ovato-oblongis basi late cuneatis glabris 5-pli- 
nerviis; floribus subglabris; calycis lati campanulati limbo tubum subaequante, 
lobis apiculatis; corolla cylindrica; fllamentis nigrescentibus connatis superne 
pilosls, antheris granulatis rlgide coriaceis dorsaliter puberulls superne dilatatis 
rlmls latis ovalibus dehiscentibus. 
Shrub; branchlets stout, terete, cinereous, glabrous; petioles subrugose, stout, 
up to 5 mm. in diameter, 9 to 12 mm. long; leaf blades broadly ovate-oblong, 25 
to 35 cm. long, 11 to 15 cm. broad, broadly cuneate at base, entire and nar- 
rowly revolute at margins, glabrous, nltid above, thick-coriaceous, 5-pli-nerved, 
the secondary nerves oriented near base, with the midnerve slightly raised 
above, prominent beneath, the veinlets reticulate, slightly raised on both sur- 
faces ; inflorescence and pedicels lacking in our specimen; calyx tube glabrous, 
broadly campanulate or subspherical, about 2.5 mm. long and 4 mm. in diam- 
eter at anthesis; limb spreading, coriaceous, about 2.5 mm. long including 
lobes, the lobes 5, triangular, aplculate, about 1 mm. long; corolla sub- 
coriaceous, glabrous, or minutely puberulous distally, about 25 mm. long and 
5 to 0 mm. in diameter, contracted distally, the lobes subacute, about 2 mm. 
long; stamens about 7.5 mm. and 9.5 mm. long, respectively; filaments nigres- 
cent, coriaceous, 3 to 3.5 mm. long, pilose dor sally near apex with minute 
brown hairs, marginally white-pubescent with pale hairs up to 0.15 mm. long; 
anthers granular, rigidly coriaceous, dorsally puberulous, produced at base, 
about 6.5 mm. and 8.5 mm. long, respectively, opening by wide oval clefts about 
3 mm. long; stigma truncate. 
Type in the herbarium of the New York Botanical Garden, collected in 
mossy forest, Boca Antizales, on Rfo Esmeralda, Department of Bolivar, 
Colombia, altitude 1,400 to 1,800 meters, February 26, 1918, by F. W. Pennell 
(no. 4484). 
DISTRIBUTION: Known only from the type collection. 
The specimen here described is very incomplete, but represents a distinct 
species on the basis of its large leaves and rigidly coriaceous puberulous anthers. 
84377—32 15 
528 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
10, Satyria meiantha Donn. Smith, Bot. Gaz. 47:256. 1900. 
Scandent shrub; branchlets stout, subterete, glabrous, cinereous; petioles 
rugose, glabrous, 2 to 4 mm. in diameter, 8 to 12 ram. long; leaf blades oblong 
or ovate-oblong, 12 to 18 cm. long, 4 to 9 cm. broad, cuneate at base, acuminate 
or long-acuminate at apex, entire and slightly revolute at margins, glabrous, 
thick-coriaceous, 5-pli-nerved, the secondary nerves oriented above base, with 
the midnerve nearly plane above, prominent beneath, the veinlets reticulate, 
slightly raised on both surfaces; inflorescence axillary, frequently on large 
leafless branches, short-racemose, 6 to 12 flowered; rachis striate, slender, 
glabrous, 5 to 10 mm. long, minutely and deciduously bracteate at base; pedicels 
rugose, glabrous or sparsely puberulous towards apex, slender, 6 to 10 mm. 
long, each subtended by an oblong, acute, subcoriaceous, sparsely funbriate 
bract about 2 mm. long, bibracteolate near middle with similar, slightly smaller 
bractlets, swollen distally; calyx tube campanulate, subrugose, minutely pu- 
berulous, becoming glabrous, about 2 nnn. long and 2 mm. in diameter at 
anthesis; limb about 1.5 mm. long including lobes, subcoriaceous, minutely 
puberulous, the lobes triangular, apiculatc, about 0.5 nun. long; corolla sub- 
rugose, glabrous, 10 to 11 mm. long, about 2.5 mm. in diameter, contracted 
distally, the lobes subacute, about 1 mra. long; stamens about 5 mm, and 5.5 
mm. long, respectively; filaments castaneous, glabrous or sparsely puberulous 
distally, about 3 mm. long; anthers about 3 mm. and 3.5 mm. long, respec- 
tively, opening by broad oval clefts 1 to 1,3 mm. long; stigma truncate. 
Type locality; Cob&n, Department of Alta Verapaz, Guatemala, altitude 
1,600 meters. Type collected by von Tuercklieim (no. II. 2101). 
Distribution: Department of Alta Verapaz, Guatemala, altitude 1,400 to 
1,600 meters, 
Guatemala. 
Alta Verapaz: Cobfln, von Tuerckheim II, 2101 (G, N, type, Y), Samac, 
Johnson 873 (N). 
The small flowers, puberulous calyces, and medium-sized leaves distinguish 
this species. 
11. Satyria nitida A. C. Smith, sp. nov. 
Ricdelia fendlcHana Kuntze, Rev. Gen. PI. 2: 384. 1891, nomen. 
Frutex scandens; laminis oblongis basi cuneatis apice acuminatis supra nitidls 
5-pli-nerviis; inflorescentia breviter racemosa ubique minute et decidue puberu- 
lento; calycis rugosi campanulati limbo tubum subaequante, lobis apiculatis; 
corolla cylindrica; filamcntis connatis, antheris superne dilatatis rimis ovali- 
bus dehiscentibus. 
Scandent shrub; branchlets terete, glabrous, brownish; petioles rugose, stout, 
about 4 mm. in diameter, 6 to 10 mm. long, narrowly winged above; leaf 
blades oblong, 17 to 28 cm. long, 5 to 9 cm. broad, cuneate at base, acuminate or 
long-acuminate at apex, entire and narrowly revolute at margins, thick- 
coriaceous, glabrous and nitid above, glabrous beneath or sparsely pilose with 
scattered appressed brown hairs about 0.2 mm. long, 5-pli-nerved, the secondary 
nerves oriented slightly above base, ascending nearly to apex, with the midnerve 
slightly raised above, prominent beneath, the veinlets reticulate, plane or 
slightly raised on both surfaces; inflorescence axillary, frequently on stout leaf- 
less branchlets, 5 to 8 flowered, short-racemose; racemes 2 to 4 in a group, 
giving to the inflorescence a pauicled appearance; rachis striate, minutely 
puberulous when young, 3 to 5 mm. long, deciduously and minutely bracteate 
at base; pedicels striate, minutely puberulous, each subtended by an ovate- 
oblong subcoriaceous fimbriate bract about 1 mm. long, minutely bibracteolate 
below middle, swollen distally; calyx tube rugose, minutely puberulous with 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 529 
hairs about 0.1 mm. long, campanula te, about 2 mm. long and 2 mm. in 
diameter at anthesis; limb spreading, about 1.5 mm. long including lobes, the 
lobes 5, apiculate, about 0.5 mm. long; corolla minutely puberulous as the 
calyx, 12 to 14 mm. long, about 3.5 mm. in diameter, slightly contracted above, 
the lobes oblong, eubacute, about 1.5 mm. long; stamens about 5.5 mm. and 6 
mm. long, respectively; filaments nigrescent, about 2.5 mm. long, leading into 
slender, laterally pilose connectives; anthers slightly incurved and inconspicu- 
ously setose at base, about 3.5 mm. and 4 mm. long, respectively, opening by 
broad introrse clefts 1 to 2 mm. long; stigma truncate. 
Type in the Gray Herbarium of Harvard University, collected between 
Maracai and Choroni, near Colonia Tovar, State of Aragua, Venezuela, alti- 
tude about 1,550 meters, January 29, 1857, by A. Fendler (no. 2013). Dupli- 
cate at K. 
Distribution : Known only from the type collection. 
The present species of Satyria, which is the only one known as yet from 
Venezuela, differs from the preceding by its larger leaves and flowers. They 
have in common a minutely puberulous calyx. 
12. Satyria minutiflora A. C. Smith, sp. no v. 
Frutex; laminis oblongis vel ovato-oblongis basi cuneatls supra nitidls 5-pIi- 
nerviis; inflorescentia subfasciculata glabra; floribus minutis; calyce coriaceo 
rugoso campanulato, limbo tuburn subaequante, lobis apiculatis; corolla 
elongato-urceolata; filamentis connatis, antheris inaeyualibus superne dilatatis 
poris obliquis latls dehiscentibus. 
Shrub; branchlets stout, subterete, sparsely puberulous with pale spreading 
hairs or glabrous, cinereous; petioles subrugose, stout, about 4 mm. long, 
essentially glabrous, 8 to 10 mm. long; leaf blades oblong or ovate-oblong, 
16 to 20 cm. long, 5 to 7 cm. broad, broadly cuneate at base, acute at apex (?), 
entire and slightly recurved at margins, thick-coriaceous, glabrous and nitid 
above, glabrous or sparsely pilose beneath with appressed brownish hairs up 
to 0.3 mm. long, 5-pli-nerved, the secondary nerves oriented above base, ascend- 
ing nearly to apex, with the midnerve nearly plane above, prominent beneath, 
the veinlets obscurely reticulate; inflorescence sabfasciculate, the peduncles 
stout, borne in clusters on leafless branchlets, the flowers 3 to 6 to a peduncle, 
glabrous in all parts; pedicels striate, slender, 6 to 8 mm. long, each subtended 
by aii oblong, sparsely flmbriate bract about 1 mm. long, similarly bibracteolate 
below middle, swollen distally; calyx tube coriaceous, rugose, campanulate 
or subglobose, about 1.5 mm. long and 2 mm. in diameter at anthesis; limb 
subcoriaceous, 1 to 1.5 mm. long including lobes, the lobes 5, apiculate, about 
0.5 mm. long; corolla subrugose, el on gate -urceol ate, 7 to 8 mm. long, about 2.5 
mm. in diameter, contracted at throat, the lobes spreading, subacute, about 1 
mm. long; stamens about 2.5 mm. and 2.8 mm. long, respectively; filaments 
castaneous, sparsely pubescent distally, 1 mm. long or slightly less; anthers pale 
castaneous, about 1.9 mm. and 2.2 mm. long, respectively, opening by broad 
oblique pores about 0.6 mm. long; stigma capitate. 
Type in the herbarium of the New York Botanical Garden, collected in forest 
at La Cumbre, Western Cordillera, Department of El Valle, Colombia, altitude 
1,700 to 2,100 meters, September 9, 1922, by E, P. Killip and T. E. Hazen 
(no. 12138). 
Distkibution : Known only from the type collection. 
The small flowers and minute anthers easily distinguish this species. The 
extraordinarily stout branchlets, which bear flowers on the old woody portions, 
also are characteristic. 
530 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Explanation op Plats 19.—Satyria minutiflora, from photograph of type sheet. About 
one-half natural size. 
13. Satyria toroi A. C. Smith, sp. nov. 
Frutex; laminis late ovato-oblongis basi cuneatis glabris 5-pli-nerviis; 
inflorescentla breviter racemosa; calycis tubo late campanulato rugoso glabro 
limbum subaequante, lobis ovato-apiculatls; corolla subcylindrica; filamentie 
connatis, antheris superne dilatatls rimis ovalibus latis dehiscentibus. 
Shrub; branchlets stout, subterete, glabrous, cinereous; petioles subrogose, 
stout, 3 to 5 mm. In diameter, glabrous, 7 to 10 mm. long; leaf blades broadly 
ovate-oblong, 15 to 20 cm. long, S to 10 cm. broad, cuneate at base, apes (?), 
entire at margins, thick-coriaceous, glabrous, 5-pll-ncrved, the secondary nerves 
oriented slightly above base, ascending near margins, with the midnerve nearly 
plane above, prominent beneath, the veinlets reticulate, slightly raised on both 
surfaces; inflorescence short-racemose, the racemes borne in clusters of 2 or 3 on 
stou{ leafless branchlets, declduously bracteate at base, 5 to 10 flowered; rachls 
stria te, 3 to 6 mm. long, glabrous; pedicels rugose, glabrous, 15 to 25 mm. 
long, each subtended by an oblong subcoriaceous fimbriate bract 3 to 4 mm, 
long, bibracteolate below middle with bractlets about 1.5 mm. long, swollen 
distally; calyx tube coriaceous, rugose, broadly campanulate, about 2 mm. 
long and 4 mm. in diameter at anthesis, glabrous; limb spreading, thin- 
coriaceous, about 3 mm. long including lobes, the lobes 5, ovate, apiculate, about 
1.5 mm. long, thick-margined except at apex; corolla thin-carnose, minutely 
puberulous, becoming glabrous, subcylindric or elongate-urceolate, 15 to 17 
mm, long, 4 to 5 mm. in diameter, contracted at throat, the lobes subacute, 
about 1.5 mm. long; stamens about 7 mm. and 8 mm. long respectively; fila- 
ments castaneous, about 2.5 mm. long, free distally and here puberulous; 
anthers castaneous, incurved at base, about 5.5 mm. and 6.5 mm. long, re- 
spectively, opening by wide oval clefts about 2.5 mm. long; stigma truncate. 
Type in the herbarium of the New York Botanical Garden, collected at 
Dauro, Intendencia of El ChocO, Columbia, April 6, 1928, by R. A. Toro 
(no. 1131). 
DISTRIBUTION: Known only from the type collection. 
Distinguished by its broad leaves and ample soft-carnose flowers. 
14. Satyria breviflora Hoer. Bot. Jahrb. Engler 42:319. 1009. 
Shrub; branchlets stout, terete, glabrous, brownish or cinereous; petioles 
rugose, glabrous, stout, 3 to 4 mm. in diameter, narrowly winged above, 6 to 
8 mm. long; leaf blades thick-coriaceous, ovate oblong, 15 to 18 cm. long, 4 
to 7 cm. broad, cuneate at base, acute at apex, .entire and slightly revolute at 
margins, glabrous, 5-pli-nervod, the secondary nerves oriented slightly above 
base, with the midnerve Impressed above, prominent beneath, the veinlets retic- 
ulate, plane or slightly raised; inflorescence short-racemose, the racemes soli- 
tary or clustered on stout leafless branchlets, declduously minutely bracteate 
at base, 8 to 20 flowered; raeliis stout, glabrous, 4 to 10 mm. long; pedicels 
rugose, glabrous, 20 to 25 mm. long, each subtended by a submembranous oblong 
acute fimbriate bract about 2.5 mm. long, bibracteolate below middle with 
bractlets about 1.5 mm. long, swollen distally; calyx tube coriaceous, rugose, 
campanulato, about 2 mm. long and 3 mm. in diameter at an thesis, glabrous; 
limb thin-coriaceous, about 2.5 mm. long including lobes, the lobes ovate, apicu- 
late, about 1.5 mm. long, slightly thickened at margins except at apex; corolla 
thin-carnose, minutely puberulous when young, 11 to 16 mm, long, about 4 mm. 
in diameter, contracted at throat, the lobes subacute, less than 1 mm. long; 
stamens about 7.5 mm. and S mm. long, respectively; filaments dark castaneous, 
about 3 mm. long, pilose at margins distally with hairs about 0.2 mm. long; 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 531 
anthers about 5.5 mm. and 6 mm. long, respectively, opening by wide clefts 
about 2 mm. long; stigma truncate. 
Typh locality: Quindfo Region, Colombia (Department of Tolima?). Type 
collected by Triana (no. 253). 
Distribution : Andes of Central Colombia, altitude 2,000 to 2,300 meters. 
Colombia. 
Cundinamarca : Above Sibate, Holton, in December, 1852 (Y). 
Tolima: Quindfo Region, Triana 253 (B, type). Murillo, Pennell 3191 (Y). 
AntioquU: Medellln, Archer 1508 (N, Y). 
Caldas: Buenos Aires, north of Supla, Pennell 10725 (Y). 
The above dimensions are average; the anthers of the Holton specimen are 
somewhat smaller, but it is apparently conspecific with material from the 
Central Cordillera. 
LIST OF NEW SPECIES, NEW GENERA, AND NEW NAMES 
Fag« 
Anthopterus bracteatus A. C. Smith, sp. nov    409 
Anthopterus cuneatus A. C. Smith, sp. nov   407 
Cavendishia azillaria A. C. Smith, sp. nov.   493 
Cavendishia bomareoides A. C. Smith, sp. nov  470 
Cavendishia bullata Smith & Standl., sp. nov  453 
Cavendishia caudata A, C. Smith, sp. nov  496 
Cavendishia compacta A. C. Smith, sp. nov  468 
Cavendishia divaricata A. C. Smith, sp. nov  481 
Cavendishia durifolia A, C, Smith, sp. nov   493 
Cavendishia glandulosa A. C. Smith, sp. nov  497 
Cavendishia gracilis A. C. Smith, sp. nov  501 
Cavendishia hispida A. C. Smith, sp. nov    469 
Cavendishia killipii A. C. Smith, sp. nov   483 
Cavendishia macrocephala A. C, Smith, sp. nov  475 
Cavendishia marginata A. C. Smith, sp. nov  499 
Cavendishia miconioides A. C. Smith    503 
Thibaudia melastomoidea H. B, K, Not Cavendishia melastomoidea Hemsl. 
Cavendishia montana A. C. Smith, sp. nov  492 
Cavendishia obtusa A. C. Smith, sp, nov    498 
Cavendishia oligantha A. C. Smith, sp. nov  496 
Cavendishia pterocarpa (Donn. Smith) A. C. Smith  449 
Themistoclesia pterocarpa Donn. Smith. 
Cavendishia purdiei A. C. Smith, sp. nov..  472 
Cavendishia quercina A. C, Smith, sp, nov  450 
Cavendishia rigidifolia A. C. Smith, sp. nov   500 
Cavendishia sessiliflora A. C. Smith, sp. nov.      483 
Cavendishia spicata A, C. Smith, sp. nov  479 
Cavendishia splachnoides A. C. Smith, sp. nov  471 
Cavendishia subaxnplexicaulis A. C. Smith, sp. nov  478 
Cavendishia venosa A. C. Smith, sp. nov    474 
Ceratostema lobbii A. C. Smith, sp. nov  337 
Englerodoxa calycina (Benth. & Hook.) A. C. Smith, sp. nov  351 
Ceratostema calycinum Benth. & Hook., nomen. 
Englerodoxa loranthiflora (Benth.) A. C. Smith   352 
Ceratostema loranthiflor um Benth. 
Oonocalyx portorioensis (Urban) A. C. Smith    354 
Thibaudia portoricenaia Urban. 
Oonocalyx smilacifolius (Griseb.) A. C. Smith.   354 
Vacdnium smilacifolium Griseb. 
Lateropora A. C. Smith, gen. nov  333 
Lateropora ovata A, C. Smith, sp. nov  334 
Lysiclesia A. C. Smith, gen. nov  517 
Lysiclesia caudata A. G. Smith, sp. nov  518 
Lysiclesia minor A. C. Smith, sp. nov  519 
Macleania amplexicaulis A. C. Smith, sp. nov  367 
Macleania compacta A. C. Smith, sp. nov  369 
Macleania crassa A, C. Smith, sp. nov  373 
Macleania hirti flora (Benth.) A. C, Smith  382 
Thibaudia hirtifiora Benth. 
533 
534 CONTRIBUTIONS FROM THE NATIONAL/ HERBARIUM 
Page 
Macleania linearifolia (Donn. Smith) A. C. Smith  368 
Macleania cordata Lem. var. linearifolia Donn. Smith. 
Macleania nervosa A. C. Smith, sp. nov   380 
Macleania reducta A. C. Smith, sp. nov     380 
Macleania stricta A. C. Smith, sp. nov  364 
Orthaea apophysata (Griseb.) A. C. Smith     516 
Sophoclesia apophysata Griseb. 
Orthaea breviflora A. C. Smith, sp, nov ,    513 
Orthaea cavendishioides A. C. Smith, sp. nov   511 
Orthaea constans A. C. Smith, sp. nov  512 
Orthaea hispida A. C. Smith, sp. nov  517 
Periclesia A. C. Smith, gen. nov     357 
Periclesia flezuosa A. C. Smith, sp. nov  357 
Psammisia coarctata (R. & P.) A. C. Smith  401 
Tkibaudia coarctata R, & P. 
Psammisia elliptic a (Rusby) A. C. Smith  395 
Macleania elliptica Rusby. 
Psammisia ferruginea A. C. Smith, sp. nov   391 
Psammisia globosa A. C. Smith, sp. nov  388 
Psammisia killipii A. C. Smith, sp. nov  395 
Psammisia pauciflora Griseb., sp. nov    394 
Psammisia pennellii A. C. Smith, sp. nov    386 
Psammisia urichiana (Britton) A. C. Smith   393 
Cavendishia urichiana Britton. 
Satyria elongata A. C. Smith, sp. nov   _   521 
Satyria latifolia A. C. Smith, sp. nov  527 
Satyria minutiflora A. C. Smith, sp. nov  529 
Satyria neglecta A. C. Smith, sp. nov    520 
Satyria nitida A. C. Smith, sp. nov    528 
Satyria ovata A. C. Smith, sp. nov
 
 524 
Satyria pilosa A. C. Smith, sp. nov  524 
Satyria toroi A. C. Smith, sp. nov    530 
Satyria triloba A. C. Smith, sp. nov   523 
Siphonandra pilosa A. C. Smith, sp. nov   355 
Themistoclesia compacta A. C. Smith, sp. nov     444 
Themistoclesia dependens (Benth.) A. C. Smith   442 
Thibaudia dependens Benth. 
Themistoclesia hirsuta A. C. Smith, sp. nov   443 
Themistoclesia peruviana A. C. Smith, sp. nov   442 
Themistoclesia vegasana A. C. Smith, sp. nov  440 
Thibaudia andrei A. C. Smith, sp. nov    418 
Thibaudia anomala A. C. Smith, sp. nov   429 
Thibaudia archeri A. C. Smith, sp. nov  426 
Thibaudia axillaris Rugby, sp. nov  417 
Thibaudia herrerae A. C. Smith, sp. nov     435 
Thibaudia laxa A. C. Smith, sp. nov.  424 
Thibaudia obovata A. C. Smith, sp. nov !   431 
Thibaudia ovalifolia A. C. Smith, sp. nov    434 
Thibaudia pachyantha A. C. Smith, sp. nov.   415 
Thibaudia paniculata A. C. Smith, sp. nov  426 
Thibaudia pennellii A. C. Smith, sp. nov    427 
Thibaudia regularis A. C. Smith, sp. nov   436 
Thibaudia rigidiflora A. C. Smith, sp. nov   418 
Thibaudia spathulata A. C. Smith, sp. nov.   434 
INDEX TO NUMBERED SPECIMENS 
The following list includes the 
Alfaro, A. 
5843. Cavendishia complectens. 
Allabt, A. 
304. Themistoclesla pendula. 
384. Cavendishia splendens. 
399. Fsammisia hookeriana. 
AN Did:, E. 
269. Anthopterus ward 11. 
577. Fsammisia lehmannii. 
754. Macleania nitida. 
828. Cavendishia cordifolia. 
985. Psammlsia pauciflora. 
1045. Psammlsia ecuadorensls. 
1337. Psammlsia lanceolata. 
1340. Psammlsia lanceolata. 
With 1340. Thibaudia andrei. 
1498. Psammlsia lanceolata. 
1926. Thibaudia floribunda. 
2070. Psammlsia ecuadorensls. 
2255. Cavendishia macrocephala. 
3002. Cavendishia cordifolia. 
3004. Cavendishia acuminata. 
3028. Psammlsia graebneriana. 
With 3028. Thibaudia andrei. 
3297. Macleania stricta. 
3333. Psammlsia sodiroi. 
3341. Psammlsia ferrugineu. 
3344. Macleania nitida. 
3430. Cavendishia venosa. 
3458. Cavendishia gilgiana. 
3475. Cavendishia cordifolia. 
3718. Psammlsia ecuadorensls. 
3793. Psammlsia sodiroi. 
3797. Thibaudia floribunda. 
3841. Cavendishia gilgiana. 
4340. Macleania salapa. 
4553. Macleania poortmanni. 
4561. Semiramisia weberbaueri, 
4567. Semiramisia weberbaueri. 
K1335. Anthopterus wardii. 
ed specimens studied. 
Anthony, H. EL, and Tatb, G. H. H. 
210. Cavendishia acuminata. 
Archer, W. A, 
176. Cavendishia pubescens. 
202. Psammlsia lehmannii. 
316. Cavendishia pubescens. 
1211. Macleania nitida. 
1289a. Cavendishia guatapeensis. 
1363. Cavendishia pubescens. 
1508. Satyria breviflora. 
1592. Cavendishia pubescens. 
1901. Anthopterus wardii. 
2002. Psammlsia breviflora. 
2013. Thibaudia archerl. 
2209. Psammlsia breviflora. 
Ariste Joseph, Brother 
B. 112. Ceratostema parvifolium. 
B. 113. Psammlsia falcata. 
Bailey, L. H., and Bailey, E. Z. 
992. Cavendishia pubescens. 
BANG, M. 
290. Cavendishia pubescens. 
624. Rusbya taxi folia. 
721. Cavendishia paniculata. 
1383. Cavendishia pubescens bolivien- 
sis. 
1516. Psammlsia pauclflora. 
1939. Ceratostema mandoni. 
2003. Siphonandra elliptic a. 
2373. Cavendishia acuminata. 
2605. Ceratostema spectabile. 
Botteri, M. 
614. Macleania inslgnis. 
Boynton, K. 
8216. Gonocalyx portoricensis. 
535 
J 
536 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Brape, A. C. 
51. Cavendishia longiflora. 
2090, Cavendishia quercina. 
2101. Cavendishia endresii. 
2102. Cavendishia veraguensis, 
2354. Cavendishia costaricensis. 
16333. Cavendishia smithii. 
16672. Cavendishia complectens. 
Bbitton, N. L., Britton, E. G., and 
Hazen, T. E. 
1018. Orthaea apophysata. 
Bbitton, N. L., and Bbuneb, E. SI. 
7618. Gonocalyx portoricensis. 
Britton, N. L., and Freeman, W. G. 
2364. Psammisia urichiana. 
Bbitton, N. L., Hazen, T. E.f and 
Mendelson, W. 
1294. Psammisia recurvata. 
1814. Orthaea apophysata. 
Broadway, W. E. 
6333. Orthaea apophysata. 
6211. Psammisia recurvata, 
7121. Psammisia recurvata. 
Buchtien, O. 
30. Thibaudia macrocalyx. 
31. Ceratostema graebnerianum. 
503. Cavendishia pubescens. 
715. Cavendishia pubescens. 
910. Thibaudia macrocaiyx. 
911. Ceratostema graebnerianum. 
1178. Psammisia pauciflora. 
1179. Psammisia guyanensis. 
1180. Psammisia guyanensis. 
1181. Psammisia guyanensis. 
2013. Psammisia pauciflora. 
2979. Ceratostema spectabile. 
2981. Cavendishia beckmanniana. 
3870. Cavendishia pubescens. 
5514. Psammisia pauciflora. 
5517. Orthaea boliviensis. 
5518. Orthaea boliviensis. 
7431. Psammisia pauciflora. 
7432. Orthaea boliviensis. 
7433. Thibaudia boliviensis. 
7612. Cavendishia paniculuta. 
Bues, C. 
2114. Ceratostema mandoni. 
Conzatti, C. 
167. Maclean i a insignis. 
Cook, O. P., and Giibert, G. B. 
833. Cavendishia beckmanniana. 
862. Cavendishia paniculata. 
879. Cavendishia beckmanniana, 
1310, Ceratostema graebnerianum. 
Cook, O. P., and Griogs, R. F. 
99. Cavendishia laurifolia. 
129. Cavendishia laurlfolia. 
418. Cavendishia callista. 
435. Macleania insignis. 
617. Cavendishia callista. 
3328. Satyria warszewiczii. 
Coopeb, J. J. 
5842. Psammisia ramifiora. 
Crugeb, H. 
3. Orthaea apophysata. 
1009. Orthaea apophysata. 
1709. Psammisia recurvata, 
Curban, H. M., and Hauan, M. 
1118. Cavendishia pubescens. 
Dawe, M. T. 
316. Thibaudia floribunda. 
338. Cavendishia cordifolia. 
840. Cavendishia adenophora. 
849. Cavendishia adenophora. 
Dohbey, J, 
431. Cavendishia punctatifolia. 
Duoke, A. 
12275. Thibaudia cupatensis. 
Kooebs, H. P. A. 
1038. Gonocalyx smilacifolius. 
Ehbenbebg, C. 
630. Cavendishia laurifolia. 
Endrbb, A. R. 
173. Cavendishia endresii. 
232. Satyria warszewiczii. 
SMITH—AMERICAN" SPECIES OP THIBATJDIEAE 537 
Fendlee, A. 
489. Orthaea apophysata. 
733. Themistoclesia pendula. 
736. Cavendishia splendens. 
737. Psammisia hooker! ana. 
738. Cavendishia pubescens. 
2013. Satyria nitida. 
Fibmin, G. 
172. Cavendishia acuminata. 
320. Cavendishia acuminata. 
Friedkiohsthal, E. 
3. Satyria ovala. 
Funck, N. 
487. Cavendishia scabriuscula. 
438. Macleania hirtiflora. 
Galbotti, H. 
1814. Macleania insignis, 
1827. Macleania Insignis, 
1840. Macleania insignis. 
Gehbigek, W. 
275. Cavendishia cordifolia. 
324. Macleania nitida. 
405. Cavendishia splendens. 
583. Cavendishia splendens. 
612. Themistoclesia pendula. 
Ghiesbbbgfht, A. B. 
645. Cavendishia crassifolia. 
Gleason, H. A., and Cook, M. T. 
M186. Gonocalyx portoricensis. 
Goldman, E. A. 
1870. Psammisia ramiflora. 
Goll, G P. 
211. Cavendishia crassifolia. 
213. Cavendishia laurifolia. 
HABTWEG, C, T. 
477. Cavendishia crassifolia. 
783. Oresinthes buxifolius. 
784. Macleania salapa. 
785. Semiramisia speciosa. 
786. Macleania benthamiana. 
786*. Cavendishia capitata. 
787. Englerodoza loranthifiora. 
788. Ceratostema lanceolatum. 
789. Cavendishia hartwegiana. 
1208. Thibaudia parvifolia. 
1209. Themistoclesia dependens. 
1216. Psammisia macrophylla. 
1217. Thibaudia floribunda. 
1218. Macleania cordifolia. 
1219. Cavendishia acuminata. 
1220. Cavendishia pseudopubescens. 
1221. Cavendishia quereme. 
1222. Macleania pubiflora, 
1223. Macleania hirtiflora. 
1224. Thibaudia floribunda. 
1225. Thibaudia floribunda. 
1225*. Psammisia breviflora. 
Hellkr, B. 
2186. Ceratostema mandoni. 
2190. Siphonandra elliptica, 
Hekeeka, F. L. 
1384. Thibaudia herrerae. 
1562. Cavendishia beckmanniana. 
2004. Thibaudia regularis. 
Hebzoo, T. 
1639. Cavendishia sillarensis. 
2147. Ceratostema mandoni. 
Heyde, E. T., and Lux, E. 
3184. Cavendishia guatemaieneis. 
4532, Cavendishia guatemalensis. 
Hitohoock, A. S. 
20879. Cavendishia acuminata. 
21166. Psammisia ecuadorensis. 
21194. Psammisia ulbrichiana, 
21438. Englerodoxa loranthifiora. 
21623. Macleania nitida. 
Hoffmann, C. 
53. Cavendishia smithii. 
141. Cavendishia hoffmannii. 
555. Macleania glabra. 
Holt, E. G„ and Blake, E. B. 
489. Cavendishia duldae. 
499. Thibaudia nutans. 
708. Cavendishia duidae. 
538 CONTRIBUTIONS FROM THE NATIONAL HERBAEIUM 
Holion, I. 
630. Cavendishia cordifolia. 
631. Cavendishia obtusa. 
632. Tliibaudia floribunda. 
633. Psammisia faleata. 
634. Cavendishia pubeseens. 
Jahn, A. 
100. Cavendishia splendens. 
204. Themistoclesia pendula. 
424. Tliibaudia jalinii. 
745. Cavendishia splendens. 
985, rsammisia penduliflora. 
997. Cavendisliia cordifolia. 
1201a. Psammisia urichianu. 
1311. Cavendishia splendens. 
Jameson, W. 
82. Macleania punetata. 
160. Cavendishia aeuminata. 
226, Cavendishia aeuminata. 
290. Cavendishia aeuminata. 
293. Tliibaudia floribunda. s 
321. Cavendishia aeuminata. 
384. Macleania mucrantha. 
444. Cavendishia aeuminata. 
622. Psammisia sodiroi. 
731. Macleania attenuata. 
Jexman, G. S. 
827. Satyria panurensis. 
1031. Tliibaudia nutans. 
Jimenez, O. 
1030. Cavendishia smithii. 
Johnson, H. 
134. Cavendishia laurifolia. 
202. Cavendishia callista. 
292. Macleania insiguis. 
510. Satyria elongate. 
568. Cavendishia guatemalensis. 
873. Satyria meiantha. 
JuLiOf Brother 
447. Tliibaudia macrocalyx. 
KALBEBYEB, O. 
286. Psammisia penduliflora. 
905. Cavendishia tarapotana. 
1027. Cavendishia cordifolia. 
1059. Orthaea cordata. 
1085. Macleania longiflora. 
1306. Cavendishia adenophora. 
1408. Cavendishia guatapeensis. 
1597. Themistoclosia depend ens. 
1620. Cavendishia kalbreyeri. 
1624. Cavendishia angustifolia. 
1669. Cavendishia amalflensis. 
1670. Psammisia breviflora. 
Karsten, G, 
6. Cavendishia splendens. 
169. Semlramisia karsteniana. 
' KILLIP, E. P. 
5223. Anthopterus wardii. 
5329. Macleania pentaptera. 
7691. Cavendishia margin a ta. 
7886. Macleania amplexicaulis. 
7909. Cavendishia coinplectens. 
11376. Cavendishia adenophora. 
11851. Anthopterus wardii. 
Khxip, E. P., and Hazbn, T. E. 
9104. Cavendishia obtusa. 
9170, Cavendishia montana. 
9462. Thibapdia floribunda. 
9467. Macleania nitida. 
9520, Cavendishia montana. 
12138. Satyria minutiflora. 
12144. Cavendishia scabriuscula. 
Killip, E. P., and Smith, A. C. 
15049. Psammisia penduliflora. 
15124. Cavendishia killipii. 
15465, Cavendishia pubeseens. s 
15722. Macleania nitida. 
15794. Themistoclesia vegasana. 
15803. Cavendishia scabriuscula, 
15806. Macleania nitida. 
15820. Thibaudia floribunda. 
; 15871. Cavendishia gracilis. 
i 15880. Themistoclesia vegasana. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 539 
15918. Cavendishia pubescens. 
15978. Cavendlshia splendens. 
15980. Cayendishla splendens. 
15987. Orthaea cavendishioides. 
15907. Cavendishia gracills. 
16090. Cavendishia splendens. 
16100. Cavendishia scabriuscula. 
16621. Psammisia penduliflora. 
16764. Cavendishia splendens. 
16777. Psammisia penduliflora. 
17174. Psammisia falcata. 
17280. Macleania nitida. 
17281. Macleania nitida. 
17336. Macleania nitida. 
17586. Macleania nitida. 
17698. Macleania nitida. 
17744. Macleania nitida. 
17857. Cavendishia scabriuscula. 
17873. Psammisia penduliflora. 
17994. Macleania nitida. 
18013. Psammisia penduliflora. 
18087. Thibaudia floribunda. 
18222. Macleania nitida. 
18370. Psammisia falcata. 
18606. Macleania nitida. 
18784. Cavendishia scabriuscula. 
18791. Thibaudia floribunda. 
1S794. Psammisia falcata. 
18868. Psammisia penduliflora. 
18872. Psammisia penduliflora. 
18875. Cavendishia cordifolia. 
18883. Cavendishia pubescens. 
18888. Cavendishia scabriuscula. 
18950. Cavendishia splendens. 
1C039. Cavendishia pubescens. 
19091. Cavendishia pubescens. 
19099. Psammisia penduliflora. 
19308. Cavendishia pubescens. 
19312. Cavendishia scabriuscula. 
19435. Cavendishia pubescens. 
19460. Cavendishia pubescens. 
19631. Macleania nitida. 
19738. Macleania nitida. 
19781. Cavendishia scabriuscula. 
19914. Macleania nitida. 
19936. Themistoclesia hirsuta. 
20051. Psammisia penduliflora. 
20055. Cavendishia pubescens. 
20108. Psammisia penduliflora. 
20481. Psammisia penduliflora. 
20587. Psammisia penduliflora. 
20588. Cavendishia splendens. 
20663. Ceratostema coronarium. 
20674. Cavendishia splendens. 
20676. Cavendishia splendens. 
20731. Cavendishia scabriuscula. 
21172. Macleania nitida. 
21218. Cavendishia cordifolia. 
22199. Cavendishia paniculata. 
22297. Cavendishia beckmanniana. 
22387. Cavendishia beckmanniana. 
22432. Cavendishia paniculata. 
22489. Cavendishia beckmanniana. 
23141. Cavendishia beckmanniana, 
23209. Cavendishia beckmanniana. 
24138. Psammisia coarctata. 
24244. Thibaudia ovata. 
24256. Cavendishia punctatifolia. 
24269. Cavendishia beckmanniana. 
24353. Thibaudia ovata. 
24473. Cavendishia punctatifolia. 
24489. Cavendishia pubescens. 
24868. Psammisia globosa. 
24882. Cavendishia pubescens. 
25677. Cavendishia acuminata. 
25686. Thibaudia biflora. 
25850. Semiramlsia weberbaueri. 
25938. Cavendishia pubescens. 
25946. Cavendishia ulbrichiana. 
KLCG, G. 
1678. Psammisia guyanensis. 
KUNTZE, O. 
1572. Cavendishia pubescens. 
1636. Psammisia hookeriana. 
2346, in part. Cavendishia smithii. 
2346, in part. Macleania glabra. 
Lankestkr, C. H. 
100. Satyria warszewiczii. 
107. Cavendishia veraguensis. 
109. Psammisia ramiflora. 
K79. Macleania ovata. 
K247. Psammisia ramiflora. 
LECHLEB, W. 
1875. Cavendishia beckmanniana. 
1924a. Cavendishia pubescens. 
2053. Siphonandra pilosa. 
2198. Cavendishia beckmanniana. 
2276. Siphonandra elliptica. 
2386. Psammisia pauciflora. 
2585. Ceratostema graebnerianum. 
2693. Ceratostema graebnerianum. 
540 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
Lehjiann, F. C. 
160. Cavendishia acuminata. 
2954. Cavendishin quereme, 
4086. Lysiclesla minor. 
4402. Psammisia columbiensis, 
4763. Cavendishia divaricata. 
4961. Psammisia lehmannii. 
5437. Macleania stricta. 
5438. Psammisia breviflora. 
5439. Psaramisla sodiroi. 
5620. Themistoclesia dependens. 
6290. Cavendishia cordifolia. 
7447. Cavendishia gracilis. 
7525. Cavendishia lindauiana. 
7527. Cavendishia guatapeensis, 
7535. Thibaudia rigidiflora. 
7895. Cavendishia lehmannii. 
8232, Thibaudia lehmannii. 
8417. Psammlsia macrophylla. 
8418. Cavendishia miconioidi's. 
BT439. Psammisia macrophylla. 
BT639. Psammisia macrophylla. 
BT949. Anthoptcrus hractcatus. 
BT9G5. Psammisia macrophylla. 
K16S. Cavendishia adenophora. 
K169. Cavendishia adenophora. 
K172. Ceratostema rigidum. 
K173. Psammisia ferruginea. 
K174. Psammisia ecuadorensis. 
K176. Thibaudia paniculata. 
K179. Anthopterus vtardii. 
K180. Psammisia macrophylla. 
CCXXX. Cavendishia lehmannii. 
LETOOT.D, F. E. 
23. Macleania insignis. 
Likbmann, F. M. 
8643. Macleania Insignis. 
8645. Macleania insignis. 
Linden, J. J. 
26. Psammisia hookeriana. 
50. Cavendishia splendens. 
283. Psammisia penduliflora. 
355. Cavendishia splendens. 
918. Ceratostema pubiflorum. 
949. Cavendishia macroeephala, 
951. Psammisia grandiflora. 
1304. Cavendishia cordifolia. 
Lloyd, F, E. 
302. Gonocalyx smilacifolius. 
Lobb, W. 
1. Thibaudia ovata, 
2. Ceratostema buxifolium. 
3. Ceratostema grand ifloruni. 
79. Periclesia flexuosa. 
SO. Englerodoxa alata. 
81. Macleania stricta. 
89. Psammisia ferruginea. 
161. Englerodoxa alata. 
224. Cavendishia cordifolia. 
252. Ceratostema lobbii. 
Macbeide, J. F. 
3361. Ceratostema grandiflorum. 
3544. Ceratostema eoccintnim. 
3558. Cavendishia acuminata. 
3632. Cavendishia punctatifolia. 
3664. Macleania benthamiana, 
4376. Ceratostema coceineum. 
4792. Psammisia guyanensis. 
4851. Psammisia ulbrichiann. 
4874. Thibaudia floribunda. 
4964. Themistoclesia peruviana. 
5620. Psammisia coarctata. 
5754. Psammisia globosa. 
Macbkide, J. F., and Feathebstone, W. 
1402. Thibaudia melliilora. 
$163. Ceratostema coccineum. 
2227. Cavendishia acuminata. 
Mandon, G. 
548. Ceratostema mandoni. 
549. Siphonandra pilosa. 
550. Cavendishia acuminata. 
Mathews, A. 
883*. Thibaudia ovalifolia. 
884. Siphonandra elliptica. 
3442. Macleania floribunda. 
1443. Thibaudia angustifolia. 
1444. Cavendishia acuminata. 
2077. Psammisia globosa. 
2078, in part. Cavendishia nobilis. 
2078, in part. Psammisia coarctata. 
3041, in part. Thibaudia morieandi. 
3041, in part. Thibaudia phyllireaefo- 
lia. 
p 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 541 
Maxon, W. R. 
5446. Cavendishia wercklel. 
Maxon, W. R., and Habvey, A. D. 
7912. Cavendishia endresii. 
7913. Cavendishia smitliii. 
7914. Cavendishia smitliii. 
8018. Cavendishia endresii. 
8197. Cavendishia melastomoides. 
8228. Satyria warszewiczii. 
Maxon, W. R., Hahvey, A. D,, and 
Valentine, A. T. 
7768. Cavendishia smithii. 
Mobitz, J. 
479. Psammisia bookeriana. 
772. Psammisia hookeriana. 
1340, Themistoclesia pendula. 
3346. Cavendishia pubescens, 
3347. Psammisia penduliflora, 
1347b. Psammisia penduliflora. 
1348. Cavendishia cordifolia. 
3349. Maclean i a nitida. 
3062. Themistoclesia pendula. 
1603. Cavendishia splendens. 
Nelson, E. W. 
778, Cavendishia crassifolia. 
332S. Satyria warszewiczii. 
33-r)0. Cavendishia lanrifolia. 
3362. Cavendishia lanrifolia. 
.NlEMEYER, E. 
141a. Cavendishia cordifolia. 
143, Cavendishia cordifolia. 
Oersted, A. 
8569. Cavendishia veraguensls. 
8572. Cavendishia smithii. 
8574. Macleania glabra. 
8648. Macleania glabra. 
Pachano, A. 
179. Macleania euryphylla. 
223. Cavendishia hartwcgiana. 
Pearce, R. 
126. Thibaudia melliflora. 
236. Psammisia ulbrichiana. 
731. Orthaoa boliviensis. 
790. Siphonandra elliptica. 
814. Orthaea constane. 
Pennell, F. W. 
1711. Satyria panurensis. 
1769. Cavendishia cordifolia. 
3770. Cavendishia cordifolia. 
1 782. Cavendishia cordifolia. 
1924. Thibaudia floribunda. 
1968. Cavendishia cordifolia. 
2420. Psammisia graebneriana. 
2447. Cavendishia cordifolia. 
2,"72. Caveiidisliia obtusa. 
2643. Macleania hirti flora. 
2646. Macleania hirti flora. 
2659. Themistoclesia conipacta. 
2695. Cavendishia pubescens. 
2705. Psammisia lanceolata. 
3116. Macleania nitida. 
3378. Cavendishia durlfolia. 
3179. Thibaudia pennellii. 
3191. Satyria breviflora. 
3192. Cavendishia pubescens. 
3193. Cavendishia guatapeensis. 
3405. Macleania nervosa. 
4299. Cavendishia subamplexicaulia 
4300. Cavendishia guatapeensis. 
4301. Cavendishia glandulosa. 
4307. Cavendishia guatapeensis. 
4332. Cavendishia guatapeensis. 
4375. Cavendishia axlllaris. 
4377. Cavendishia sessiliflora. 
4389. Lysiclesia caudata. 
4406, Psammisia breviflora. 
4421, Satyria pilosa. 
4441. Cavendishia caudata. 
4484. Satyria latifolia, 
4488. Cavendishia compacta. 
4780. Cavendishia sessiliflora. 
6953. Psammisia graebneriana. 
7023. Ceratostema rigidum. 
7465. Macleania crassa. 
7557. Cavendishia divaricata. 
7566. Macleania pubiflora. 
7628. Psammisia pennellii. 
7629. Psammisia breviflora, 
8267. Psammisia macrophylla. 
9303. Cavendishia obtusa. 
9304. Psammisia pennellii. 
9305. Cavendishia montane. 
10308. Psammisia macrophylla. 
10314. Cavendishia acuminata. 
10315, Psammisia macrophylla. 
10401. Cavendishia adenophora, 
10402. Cavendishia bomareoides. 
10403. Psammisia grandiflora. 
CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
* 
y 
1180. Themistoclesia dependens. 
1226. Cavendishia miconioides. 
3014. Satyrla warszewiczli. 
3036. Cavendishia endresil, 
3206. Cavendishia wercklei. 
3234. Lateropora ovata. 
5647. Cavendishia splacbnoides. 
5651. Cavendishia bomareoides. 
5659. Cavendishia splacbnoides. 
5872. Cavendishia pubescens. 
9175. Cavendishia pubescens. 
9263. Cavendishia splendens. 
9916. Psammisla hookeriana. 
9994. Themistoclesia pendula. 
11377. Psammisla urichlana. 
12874, in part. Psammisla penduliflora. 
12874, In part. Cavendishia cordifolia. 
542 
10458. Psammisia grandiflora. 
10459. Psammisia grandiflora. 
10460. Thibaudia floribunda, 
10509. Cavendishia acuminata. 
10538. Cavendishia acuminata. 
10539. Cavendishia scabriuscula. 
10722. Cavendishia pubescens. 
10744. Cavendishia pubescens. 
10933. Cavendishia pubescens. 
13857. Siphonandra elliptiea. 
13962. Cavendishia paniculata. 
13972. Orthaea breviflora. 
14009. Cavendishia weberbaueri. 
14015. Cavendishia weberbaueri. 
14028. Psammisia ulbrichiana. 
14096. Ceratostema graebnerianum. 
Pen nell, F. W., and Hazen, T. B. 
10076. Ceratostema pubiflorum. 
10115. Cavendishia scabriuscula. 
Pennell, F. W., and Killip, E. P. 
5750. Psammisia pennellii. 
5751. Psammisia macrophylla. 
5796. Cavendishia adenopliora. 
5801. Cavendishia spicata. 
5802. Thibaudia rigidlflora. 
6324. Psammisia killipil. 
6369. Psammisia macrophylla. 
6397. Cavendishia miconioides. 
6519. Psammisia graebneriana. 
6524. Thibaudia floribunda. 
7290. Psammisia pennellii. 
7304. Thibaudia floribunda. 
7384. Cavendishia divaricata. 
8130. Psammisia macrophyllii. 
8275. Psammisia macrophylla. 
8305. Psammisia macrophylla. 
8862. Cavendishia scabriuscula. 
Perez, A. E. 
1060. Macleania nitida. 
Pittier, E. 
81. Cavendishia pubescens. 
129. Psammisia hookeriana. 
Pittier, H. 
588. Macleania pontaptera. 
770. Macleania antloquiae. 
1071. Cavendishia acuminata. 
1073. Thibaudia floribunda. 
I 
Pittier, H. 
(Id J. D. Smith or Inst. Fis.-Geogr. 
Costa Rica series) 
340. Cavendishia callista. 
2033, in part. Cavendishia veraguensis. 
2033, in part. Macleania glabra. 
3102. Macleania glabra. 
7546. Macleania glabra. 
7547. Cavendishia veraguensis. 
10170. Cavendishia complectens. 
11206. Satyrla warszewiczii. 
12147. Satyrla trlloba. 
] 3047. Macleania glabra. 
14030. Cavendishia quercina. 
14031. Cavendishia pterocarpa. 
10609. Cavendishia veraguensis. 
16610. Cavendishia quereme. 
Poeppio, E. F. 
1350. Thibaudia biflora. 
Popenoe, W. 
927. Macleania insignia. 
1017. Macleania glabra. 
1170. Cavendishia cordifolia. 
1292. Englerodoxa alata. 
1315. Cavendishia hartwegiana. 
1328. Cavendishia acuminata. 
1329. Macleania poortmanni. 
1330. Macleania bentLamiana. 
1340. Macleania loeseneriana. 
Phingle, C. G. 
7870. Macleania compacta. 
SMITH—AMERICAN SPECIES OF THIBATJDIEAE 543 
Pukdie, W. 
103. Orthaea apophysutu. 
PUBPTJS, C. A. 
288. Macleania insignia. 
6313. Macleania insignis. 
7342. Cavendishia chiapensis. 
10410. Cavendishia crassifolia. 
BEKO, B. P. 
4027. Satyria elongata. 
4096. Cavendishia crassifolia. 
Rose, J. N. 
22378. Cavendishia acuminate. 
23169. Cavendishia acuminata. 
23777. Cavendishia acuminata. 
23914. Macleania nitida. 
Rowlee, W. W.t and Rowlee, H. E. 
255. Cavendishia complectens. 
Rusby, H. H, 
2033. Cavendishia pubescens. 
2034. Thibaudia bollviensis. 
2035. Thibaudia macrocalyx. 
2036. Siphonandra elliptiea. 
2037. Psammisia pauciflora. 
2038. Psammisia guyanensis. 
2219. Satyria neglects. 
2403. Cavendishia paniculata. 
2632. Cera tost ema mandoni. 
2692. Rusbya taxifolia. 
Rusby, H. H., and Pennell, F. W. 
563. Cavendishia pubescens. 
567. Cavendishia cordifolia. 
567A, in part. Cavendishia cordifolia. 
567A, in part. Cavendishia miconi- 
oldes. 
599. Psammisia lanceolata. 
676. Cavendishia obtusa. 
750. Psammisia lehmannii. 
751. Psammisia lehmannii. 
847. Cavendishia miconioides. 
865, Psammisia falcata. 
875. Psammisia lanceolata. 
939. Cavendishia pubescens. 
982. Thibaudia rigidiflora. 
84377—32 16 
983. Thibatidia rigidiflora. 
989. Cavendishia cordifolia. 
990. Cavendishia miconioides. 
991. Cavendishia cordifolia. 
1290A. Thibaudia rigidiflora. 
Sawada, M. 
P36. Psammisia coarctata. 
P43. Thibaudia floribunda. 
SCHAFFNER, J. G. 
538. Macleania insignis. 
Schlim, L. 
1093. Cavendishia splendens, 
SCHOMBUEGK, ItICHARD 
35. Orthaea hispida. 
566, in part. Thibaudia nutans. 
566, in part. Notopora schomburgkii. 
567/873. Thibaudia nutans. 
867. Notopora schomburgkii. 
873. Thibaudia nutans. 
924. Thibaudia nutans. 
974. Psammisia guyanensis. 
1018. Cavendishia duidae. 
1040. Thibaudia formosa. 
SCHULTZE, A. 
15. Cavendishia cordifolia. 
54. Macleania nitida. 
70. Psammisia falcata. 
Seemann, B. C. 
1079. Macleania pentaptera. 
1172. Satyria warszewiczii. 
Seles, E. 
3107. Cavendishia guatemalensls. 
Shafeb, J. A. 
3641. Gonocalyx portoricensis. 
Sintenis, P. 
1363. Gonocalyx portoricensis. 
SMITH, H. H. 
1554. Psammisia elegans. 
1722. Macleania robusta. 
1964. Macleania hirtiflora, 
2789. Macleania robusta. 
544 CONTRIBUTIONS FROM THE NATIONAL. HERBARIUM 
Smith, J. D. • 
4876. Cavendish la smithii. 
6636. Cavendishia smithii. 
6637. Satyria warszewiczii. 
Sodibo, L. 
92/1. Macleania rotundifolia. 
92/2. Macleania pentaptera. 
02/2b. Macleania longiOora, 
92/2C. Macleania ecuadorensis. 
92/2c. Macleania looseneriana. 
92/2D. Macleania ecuadorensis. 
92/3. Macleania looseneriana. 
92/3b. Psammisia graebneriana. 
92/4. Psammisia ulbrichiana. 
92/4b. Psammisia sodiroi. 
92/4c. Englerodoxa alata. 
92/5. Psammisia ulbrichiana. 
92/6. Psammisia ecuadorensis. 
92/7. Psammisia ecuadorensis. 
92/9. Psammisia ecuadorensis. 
92/11. Macleania nitida. 
92/13b, in part. Tliibaudia floribunda. 
92/1 lb, in part. Macleania pilgeriana. 
92/12. Psammisia sodiroi, 
92/14. Psammisia graebneriana. 
92/15. Thibaudia floribunda. 
92/16. Cavendishia acuminata. 
92/17. Cavendishia acuminata. 
92/18. Cavendishia acuminata. 
92/18c, in part. Cavendishia acuminata. 
92/l8c, in port. Cavendishia gilgiana. 
92/lSc, in part. Cavendishia grandi- 
folia. 
92/19, in part. Cavendishia engleriana, 
92/19, in part. Cavendishia gilgiana. 
92/20. Cavendishia venosa. 
92/35, Themistoclesia dependent. 
92/36. Cavendishia complectens. 
Sl'BUCB, H. 
2465. Psammisia guyanensis. 
2704. Satyria panurensis. 
2705. Psammisia guyanensis. 
4302. Cavendishia tarapolana. 
4357. Psammisia guyanensis. 
4430. Thibaudia biflora. 
4999. Macleania nitida. 
5036. Psammisia guyanensis. 
5074. Cavendishia tarapotana. 
5094. Englerodoxa calycina. 
5095. Cavendishia hartwegiana. 
5550. Macleania hirtiflora. 
5842. Macleania reducta. 
6088. Thibaudia biflora. 
6168. Macleania cordifolia. 
6169. Psammisia ecuadorensis. 
Standley, P. C. 
32918. Cavendishia complectens. 
32950. Cavendishia complectens. 
32954. Cavendishia smithii. 
32987. Cavendishia smithii. 
32999. Cavendishia smithii. 
33002. Thibaudia costaricensis. 
33071. Cavendishia smithii. 
33088. Cavendishia smithii. 
33089. Cavendishia longiflora. 
33205. Cavendishia complectens. 
33496. Satyria warszewiczii. 
33507. Cavendishia capitulata. 
33618. Cavendishia quereme. 
33906. Cavendishia complectens. 
34145. Cavendishia quercina. 
34194. Satyria warszewiczii. 
34325. Macleania glabra. 
34329. Cavendishia costaricensis. 
34334. Cavendishia costaricensis. 
34467, Cavendishia costaricensis. 
34878. Cavendishia smithii. 
34975a. Macleania glabra. 
35257. Macleania glabra. 
35698. Cavendishia smithii. 
36130. Cavendishia quereme. 
36201. Satyria warszewiczii. 
36223. Cavendishia quereme. 
36258. Cavendishia smithii. 
36360. Cavendishia capitulata. 
36395. Cavendishia capitulata. 
36552. Cavendishia quereme. 
37593. Cavendishia quereme. 
37622. Cavendishia endresii. 
37033. Cavendishia quereme. 
37657. Satyria warszewiczii. 
37664. Cavendishia capitulata. 
37807. Cavendishia quereme. 
37862. Cavendishia capitulata. 
38053. Thibaudia costaricensis. 
38072, Thibaudia costaricensis. 
38108. Satyria warszewiczii. 
38121. Cavendishia complectens. 
38134. Cavendishia complectens. 
38211. Psammisia ramiflora. 
38508. Cavendishia melastomoides. 
38601. Satyria warszewiczii. 
SMITH—AMERICAN SPECIES OF THIBAUDIEAE 
3S631. Cavendishia smithii. 
38741. Cavendishia melastomoides. 
38853. Cavendishia smithii. 
39162. Cavendishia eomplectens. 
39275. Psammisia ramiflora. 
39375. Cavendishia capitulata. 
39418. Cavendishia capitulata. 
39460. Cavendishia costaricensis. 
39538. Cavendishia capitulata. 
39581. Cavendishia capitulata. 
39634. Cavendishia capitulata. 
39814. Cavendishia eomplectens. 
39832. Cavendishia quereme. 
39852. Cavendishia capitulata. 
41847. Satyria warszewiczii, 
42070. Satyria warszewiczii. 
42190. Cavendishia costaricensis. 
42205. Cavendishia quercina. 
42286. Satyria warszewiczii. 
42287. Cavendishia smithii. 
42325. Macleania glabra. 
42578. Cavendishia quercina. 
42650. Cavendishia costaricensis. 
42657. Macleania glabra. 
42677. Cavendishia quercina. 
42683. Macleania glabra. 
42722. Macleania glabra. 
42772. Cavendishia quercina. 
42792. Cavendishia quercina. 
42978. Satyria warszewiczii. 
43048. Macleania glabra. 
Standlet, P. C., and Tosbes, R. 
47431. Satyria warszewiczii. 
47623. Cavendishia capitulata. 
50883. Macleania ovata. 
01279. Cavendishia bullata. 
51292. Thibaudia costaricensis. 
51376. Thibaudia costaricensis. 
51400. Cavendishia quereme. 
51738. Cavendishia eomplectens. 
51772 Cavendishia eomplectens. 
Standlet, P, C., and Valehio, J. 
43440. Satyria warszewiczii. 
43720. Macleania glabra. 
43907. Macleania glabra. 
44005. Macleania glabra. 
44022. Macleania glabra. 
44734. Cavendishia capitulata. 
44822. Cavendishia capitulata. 
45381. Cavendishia capitulata. 
45434. Cavendishia capitulata. 
45623. Cavendishia capitulata. 
46262. Satyria warszewiczii. 
46948. Satyria elongata. 
47120. Satyria warszewiczii. 
4S023. Cavendishia quercina. 
48122. Cavendishia quercina. 
48148. Satyria warszewiczii. 
49037. Satyria warszewiczii. 
49091. Cavendishia smithii. 
49837. Cavendishia pteroearpa. 
50189. Cavendishia costaricensis. 
50266. Satyria warszewiczii. 
50415. Cavendishia costaricensis. 
.50648. Satyria warszewiczii. 
50752. Cavendishia costaricensis. 
50822. Cavendishia pteroearpa. 
51589. Cavendishia costaricensis. 
51919. Cavendishia quereme. 
51928. Cavendishia eomplectens. 
52038. Cavendishia costaricensis. 
52276. Cavendishia costaricensis. 
52311. Cavendishia costaricensis. 
52342. Cavendishia costaricensis. 
Steinbaoh, J. 
8860. Cavendishia beckmanniana. 
9023. Cavendishia pubescens, 
9529. Siphonandra elliptica. 
Stevens, P. L. 
75. Cavendishia costaricensis. 
Stobk, H. E. 
363. Cavendishia capitulata. 
390. Cavendishia costaricensis. 
429. Cavendishia endresli. 
1050. Satyria warszewiczii. 
1111. Satyria warszewiczii. 
1115. Cavendishia costaricensis. 
1161. Cavendishia smithii. 
1264. Cavendishia smithii. 
1313. Psammisia ramiflora. 
I 1316. Cavendishia costaricensis. 
1789. Cavendishia bullata. 
2064. Satyria warszewiczii. 
2070. Macleania glabra. 
2567. Cavendishia costaricensis. 
2569. Cavendishia melastomoides. 
Stuebel, A. 
120b. Cavendishia cordifolia. 
149a. Cavendishia obtusa. 
546 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM 
150b. Macleania nitida. 
164a. Thibaudia floribunda. 
271a, Ceratostema rigidum. 
317a. Cavendishia quereme. 
340a. Cavendishia quereme. 
TATE, Q. H. II. 
200. Thibaudia macrocnlyx. 
214. Themistoclesia pendula. 
215. Theraistoclosia pendula. 
284. Thibaudia nutans. 
312, Ceratostema mandoni. 
370. Ceratostema mandoni. 
371. Sipbonandra ellipticn. 
372. Thibaudia axillaris. 
402. Thibaudia nutans. 
409. Thibaudia glandulifera. 
457. Thibaudia glandulifci-a, 
525. Thibaudia glanduliftna. 
602. Thibaudia truncata. 
603. Mycerinus sclerophyllus. 
629. Cavendishia hartwogiuna. 
670. Cavendishia tarapotana. 
604. Thibaudia glandulifora. 
703. Cavendishia duidae. 
729. Thibaudia formosa. 
862. Sipbonandra elliptica. 
903. Thibaudia formosa. 
1048 (Venezuela). Cavendishia duidao. 
1048 (Bolivia). Cavendishia panicu- 
late. 
TESSMANN, G. 
3954. Psammisia guyancnsis. 
4662. Satyria panurensis. 
Thurn, E. IM 
49, in part. I'sammisia %uyanonsis. 
49, in part. Thibaudia roraimac1. 
56. Tiiibaudia nutans. 
109. Notopora schomburgkii. 
Tonduz, A. 
(Distributed in Inst. Fis.-Gcogr. Costa 
Kica series) 
1881. Satyria warszewiczii. 
7391. Cavendishia longiflora. 
7404. Cavendishia complectens. 
7462. Cavendishia smithil. 
10781. Cavendishia smithii. 
12232. Satyria warszewiczii. 
12251. Macleania glabra. 
12351. Cavendishia smithii. 
12438. Satyria warszewiczii, 
12657. Cavendishia smithii. 
13371. Satyria elongate. 
17836. Satyria warszewiczii. 
TORO, R. A. 
191, Cavendishia pubescens, 
468. Cavendishia guatapeensis. 
1131. Satyria toroi. 
1172. Cavendishia bomareoides. 
Tkacet, MHS. I. A. 
14. Cavendishia cordifolia. 
20. Psammisia graebneriana. 
269. Cavendishia obtusa. 
270. Psammisia lehmannii. 
335. Cavendishia rigidifolia. 
336. Cavendishia pubescens. 
Triana, J. 
36. Macleania nitida. 
37. Psammisia grandifloro. 
253. Satyria brevlflora. 
345. Psammisia penduliflora. 
2668. Cavendishia pubescens. 
2669. Psammisia macrophylla. 
2670. Psammisia graebnerinna. 
2671. Cavendishia quereme. 
2672. Macleania pubiflora. 
2674. Psammisia macrophylla. 
2675. Cavendishia oligantha. 
2677. Cavendishia cordifolia. 
2681. Psammisia ferruginea. 
2685. Psammisia falcata. 
2686. Psammisia falcata. 
2089. Thibaudia pachyantha. 
2694. Satyria grandifolia. 
2699. Cavendishia compacta. 
2703. Macleania nitida. 
2708. Macleania macrantha. 
2709. Cavendishia hispida. 
2712. Macleania pentaptera. 
2716. Anthopterus wardii. 
2718. Anthopterus cuneatus. 
4333. Macleania nitida. 
4333/19. Psammisia lanceolata. 
Tuerckheim, H. von 
64. Cavendishia laurifolia. 
941. Cavendishia callista. 
SMITH—AMERICAN SPECIES OP THIBAUDIEAE 
1190. Macleania insignis. 
1332. Macleania linearifolia. 
4119. Cavendishia callista, 
7633. Satyria elongata. 
7916. Cavendishia callista. 
II. 1626. Cavendishia laurifolia. 
II. 1661. Macleania insignis. 
II. 1795. Cavendishia callista. 
II. 2101. Satyria meiantha. 
II. 2153. Macleania insignis. 
Ulk, E. 
52p. Semiramisia weberbaueri, 
6340. Psammisia guyanensis. 
6672. Satyria panurensis. 
6789. Cavendishia ulei, 
6790. Thibaudia biflora. 
8669. Notopora schomburgkii. 
8714. Psammisia urichiana. 
8715. Thibaudia roraimae, 
8719. Thibaudia nutans. 
br. 40. Thibaudia nutans. 
Whberbauer, A. 
594. Cavendishia pubesccns. 
636. Cavendishia beckmanniana. 
684. Orthaea weberbaueri. 
740. Siphonandra elliptica, 
742. Ceratostema graebnerianum. 
742a. Ceratostema mandoni. 
889. Ceratostema mandoni. 
1081. Cavendishia peruviana. 
1081a. Cavendishia pubescens var. mi- 
crophylla. 
1159. Psammisia coarctata. 
1770. Cavendishia bracteata. 
1972. Cavendishia punctatifolia. 
2055. Thibaudia engleriana. 
2071. Thibaudia apophysata. 
2075. Ceratostema buxifolium. 
2151. Psammisia coarctata. 
2202. Ceratostema grandiflorum. 
2436. Thibaudia ovata. 
2505, Ceratostema coccineum. 
3374. Ceratostema harms! a num. 
3510. Psammisia coarctata. 
3518. Cavendishia urbaniana. 
3542. Thibaudia harmsiana. 
4182. Macleania nitida. 
4339. Thibaudia angustifolia. 
4374. Thibaudia tomentosa. 
4449. Thibaudia urbaniana. 
4455. Semiramisia weberbaueri. 
4739. Cavendishia weberbaueri. 
4753. Orthaea engleriana. 
4974. Ceratostema micropbylium. 
5009. Cavendishia paniculata. 
5861. Siphonandra elliptica. 
6041. Macleania nitida. 
6120. Macleania farlnosa. 
6122. Cavendishia ulei. 
6644. Ceratostema spectabile. 
6704. Macleania benthamiana. 
6925. Orthaea pinnatinervia. 
6928. Ceratostema micropbylium. 
6929. Siphonandra elliptica. 
7154. Thibaudia obovata, 
7532. Thibaudia laxa. 
7790. Ceratostema micropbylium. 
7814. Orthaea pinnatinervia. 
7816. Cavendishia weberbaueri. 
Webckl£, C. 
19. Cavendishia endresii. 
20. Thibaudia costaricensis. 
26. Psammisia ramiflora. 
29. Cavendishia melastomoides. 
50. Cavendishia endresii. 
52. Thibaudia costaricensis. 
53. Cavendishia wercklei. 
54. Cavendishia costaricensis. 
11301. Satyria warszewiczii. 
11565. Cavendishia capitulata. 
11567. Cavendishia quereme. 
11597. Cavendishia smithii. 
11598. Cavendishia complectens. 
11605. Satyria warszewiczii, 
11606. Psammisia ramiflora. 
16588. Macleania glabra. 
16650. Macleania ovata. 
16684. Cavendishia smithii. 
17413. Cavendishia smithii. 
Williams, L. 
934. Satyria panurensis. 
1108. Satyria panurensis. 
7343. Psammisia guyanensis. 
7597. Psammisia ulbrichiana. 
7712. Psammisia guyanensis. 
Williams, R. 8. 
1581. Thibaudia boliviensis. 
2487. Psammisia elliptica. 
CONTR. NAT, HERB., VOL 28 PLATE T 
7YPE TyPt-; %,,,,,, 
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pKin>;ihi> ri in i - l'i r.ik r'i»M A^KUUiii 
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K i / m: J i v * ■ . " i W*r, fc i^h ri- 
Lateropora ovata A. C. Smith 
CONTR. NAT HERB . VOL. 28 PLATE 2 
Ceratostema lobbii A. C. Smith 
CONTR. NAT. HERB . VOL. 28 PLATE 3 
PLANT* BOLIVIAN/C. 
S '. '• id1 ■ 
j Gsftirify 9 
No. ■? £ (?tS" 
CERATOSTEMA SPECTABIL.E RUSBY 
CONTR. NAT. HERB.. VOL. 28 PLATE 4 
Semiramisia SPECIOSA (Benth.) Klotzsch 
CONTR. NAT. HERB.. VOL. 28 PLATE 5 
Englerodoxa calycina (Benth. & hook.) A. C. Smith 
CONTR NAT HERB,. VOL. 28 PLATE 6 
W- 
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tttfiiiiUktalBfiAwH 
> - ■ : n i ■ Vri ''il 
GONOCALYX PORTORICENSIS (URBAN) A. C. SMITH 
CONTR. NAT. HERB.. VOL 28 PLATE 7 
PERICLESIA FLEXUOSA A. C. SMITH 
CONTR. NAT. HERB.. VOL. 28 PLATE 8 
\ I ' 
"r ' ■ t 
MACLEANIA AMPLEXICAULIS A. C. SMITH 
CONTR. NAT. HERB.. VOL, 28 PLATE 9 
PSAMMISIA GLOBOSA A. C. SMITH 
CONTR NAT HERB . VOL. 28 PLATE 10 
PSAMMISIA FERBUGINEA A. C. SMITH 
CONTR. NAT HERB,. VOL 28 PLATE 11 
Anthopterus bracteatus a. c. Smith 
CONTR, NAT HERB , VOL 28 PLATE 12 
THiBAlJDlA ARC HE HI A. C, SMITH 
CONTR. NAT. HERB., VOL. 28 PLATE 13 
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THIBAUDIA REGULAR IS A. C. SMITH 
CONTR. NAT. HERB , VOL. 2R PLATE U 
V>hiTro ".TATli N*T(iiSil VuStuW 
I'XPLORAI'KJN IS t'Ot.DMMA 
I * H > f"l A I * ■ N W * 
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Corel X \ red. -bolt* 
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* •\t\r-rmi llu *■ iiwd Sk' Ir*rJJ ^fhw' *km 
Themistoclesia vegasana a. c. smith 
CONTR NAT. HERB.. VOL. 28 PLATE 15 
Cavendishia spicata A. C. Smith 
CONTR. NAT. HERB , VOL. 2a PLATE 16 
Cavendishia obtusa a. c. Smith 
CONTR. NAT. HERB.. VOL. 28 PLATE 17 
Orthaea constans a. c. Smith 
CONTR. NAT. HERB., VOL. 28 PLATE 13 
A.C. Smith 
7yP£f<tt»* tyf< -> 
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Lysiclesia caudata a. c. Smith 
CONTR, NAT. HERS . VOL. 28 PLATE 19 
.'Ur\|1iis IN 
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A r w »■, T ., H rj 
k i l.-vhMI 
Ait i^3 - 21 ra ^ 
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Satyria minutiflora a * C Smith