Vol. 33, pp. 103-106 December 30, 1920
PROCEEDINGS
OF THE
BIOLOGICAL SOCIETY OF WASHINGTON
SOME NEW PLANTS FROM THE PACIFIC NORTH-
WEST.
BY C. V. PIPER.
In various collections of plants sent to the writer recently
from Oregon, Washington and British Columbia, there were
found several species not heretofore described. Some of these
seem to be very local as they have not been found by other
collectors. Most of them are from rather high Alpine localities.
The type specimens are in the possession of the writer, unless
otherwise indicated.
Erysimum torulosum, n. sp.
Biennial, with a stout taproot; stems erect, usually simple, solitary,
15-45 cm. high; herbage green, sparsely strigillose throughout with short
forked hairs; basal leaves spatulate, acute, coarsely dentate to subentire,
3-8 cm. long; cauline similar but reduced, mostly entire; sepals lanceolate
acutish, green at first, 7 mm. long; petals yellow, 1.5 cm. long; peduncles
in fruit, 1 cm. long; pods ascending or spreading, 4-angled, torulose, strigil-
lose, conspicuously beaked, 6-8 cm. long; seeds not margined.
Mount Rainier, Wash., on Owyhigh, alt. 5500 ft. J. B. Flett, Aug. 11,
1919; Nos. 3158 (type), 3160; Mt. Rainier, Piper 2062; Allen 266; Mt.
St. Helens, Coville 111.
This plant must be segregated from E. asperum (Nutt.) DC. on account
of its green herbage and very different torulose pods. Perhaps all the
specimens from high altitudes in the Cascade and Olympic Mts. are to be
referred here, but until the present mature pods seem not to have been
collected.
Arabis macella, n. sp.
Biennial from a stout taproot; stems many, simple, slender, flexuous,
terete, sparsely pilose below with simple hairs, otherwise glabrous, 40-50
cm. tall; basal leaves spatulate-oblong, obtuse, 3 cm. long, the blade longer
than the margined petiole, glabrous on the faces, the margins ciliate with
23—Proc. Biol. Soc. Wash., Vol. 33, 1920. (103)
104 Proceedings of the Biological Society of Washington.
simple hairs; cauline leaves few, oblong to linear, obtuse to acute, broad
but not auriculate at base, ciliate, the lower 2 cm. long, reduced upwards;
recemes in fruit 5-15 cm. long; pedicels erect in anthesis, spreading in
fruit, 1-1.5 cm. long, glabrous; sepals oblong, obtuse, margined, glabrous,
the two outer gibbous at base, 2-2.5 mm. long; petals oblong-spatulate,
obtuse, white, 4 mm. long; pods erect, glabrous, somewhat compressed,
the valves mostly 3-nerved, the midrib stoutest, 1.5-2 cm. long, 1 mm.
wide, tipped with a style 1.5 mm. long; seeds in one row, oval, compressed,
wingless, dark brown, 0.5 mm. long; cotyledons accumbent.
Ritzville, Wash., Sandberg and Leiberg No. 202, June 11, 1893, type in the
U. S. National Herbarium sheet No. 289784. An ally of A . furcata Wats.
Castilleja brevilobata, n. sp.
Perennial with a deep taproot and branched multicipital caudex; stems
clustered, erect or ascending, 10-15 cm. high, puberulent or in the in-
florescence pilose; leaves sessile, oblong, obtuse, 3-nerved, hispidulous
and somewhat viscid especially on the margins, 1-2 cm. long, entire or
mostly with 3 short obtuse lobes bracts similar to the leaves but broader;
and more deeply lobed, the tips scarlet; flowers subsessile; racemes rather
loose, narrow, 5-10 cm. long; calyx 10 mm. or in fruit 12-13 mm. long, sub-
equally cleft before and behind, just equalling the corolla lip, the lobes each
with 2 short obtuse teeth; corolla 15-18 mm. long, the galea 8 mm. long,
slender, glandular puberulent on the back especially at tip, the broad
margin scarlet; lip green, fleshy, 2 mm. long, the acute teeth incurved;
stigma bilobed, small; capsule ovoid, very acute, dark brown, glabrous,
6-8 mm. long.
In reddish soil on mountain slopes, 8 miles south of Waldo, Josephine
County, Oregon, June 14, 1904, C. V. Piper No. 6118 (sheet 527,720, U. S.
National Herbarium type) and No. 6230; same locality, Thomas Howell,
June 8, 1884.
Allied to C. angustifolia (Nutt.) Don, but differing in all its parts being
smaller, the short-lobed leaves, and the somewhat viscid hispidulous pubes-
cence.
Castilleja chlorotica, n. sp.
Perennial with a stout vertical taproot, several to many stems arising from
the crown; stems erect or nearly so, mostly simple, 15-20 cm. high, viscid
puberulent; leaves sessile, oblong-lanceolate, obtuse, about 2 cm. long,
minutely and very sparsely puberulent, mostly simple but some of the
upper ones 3-cleft; flowers subsessile; racemes 3-4 cm. long, at first dense,
becoming looser below; bracts all 3-cleft, the middle lobe broadest, acute
or obtuse, as long as the flowers; calyx yellowish green, 15 mm. long,
minutely puberulent on the tube, hispidulous on the lobes, subequally
cleft before and behind into lobes shorter than the tube, each lobe cleft
into two broad triangular acute teeth which extend well beyond the corolla
lip; corolla 2 cm. long; galea 8 mm. long, hispidulous on the back, greenish
except the narrow purple margin; lip 2 mm. long, green, fleshy, the lobes
—
Piper New Plants from the Pacific Northwest. 105
involute, acute; stigma small, globose; immature pods ovoid, acute,
glabrous.
Grayhart Buttes, County, Oregon, alt. 2250 meters, August 8, 1896,
Coville and Leiberg No. 283.
Related to C. angustifolia (Nutt.) Don, but distinguished by its viscid
puberulence, mostly entire leaves, and peculiarly colored bracts and co-
rolla.
Aster misellus, n. sp.
Perennial from a loosely muchbranched base; stems simple or loosely
branched above, terete, sparsely white puberulent, purple, 10-20 cm. high ;
leaves pale, entire or few-toothed; basal leaves spatulate-oblong, obtuse,
glabrous except the ciliolate margins, the blades equalling the petioles;
cauline narrowly oblanceolate, obtuse to acute, half-clasping at base,
2-8 cm. long, ciliolate at the base and slightly so on the margins; upper
ones reduced; heads few, mostly solitary terminating the branches, each
about 1 cm. broad, hemispheric; tegules in two indistinct series, acute
to obtusish, the midribs and tips green, broadly scarious-margined, ciliolate,
glabrous on the back, shorter than the disk; rays about 20, pale violet
6-8 mm. long; pappus whitish; akenes sparsely hirsutulous.
Moist beach of Strawberry Lake, Strawberry Mts., Grant County,
Oregon, W. C. Cusick, Nos. 3636 (type), 3623, 3625, September 9, 1910.
Closely allied to A. occidentalis Nutt.
Achillea eradiata, n. sp.
Perennial with a creeping rootstock; stems about 30 cm. high, corym-
bosely branched above, sulcate, sparsely villous; leaves green, sparsely
villous, the lower ones 5 cm. long, petioled from a broad scarious base,
the upper ones 2-3 cm. long, sessile and but slightly broadened at base;
lower leaves with 10-15 pairs of divisions, separated by about half their
length, most of the divisions deeply 5-10 cleft; upper leaves less deeply
divided, the rachis margined, the divisions merely lobed or cleft; inflores-
cence loose, composed of about 5 corymbiform branches 4-5 cm. long;
heads cylindric-turbinate, 5-7 mm. long, 3-4 mm. broad; tegules about
20, elliptic-ovate, sparsely villous, all obtuse, greenish along the midrib,
the scarious margins brown; flowers 3 mm. long, cream-colored, all tubular,
the outer ones slightly larger, an occasional one developing into an im-
perfect ligule; akenes immature.
Dry border of woods, east end of Pamelia Lake, foot of Mt. Jefferson,
Oregon, 4000 ft. alt., Aug. 13, 1919, J. C. Nelson No. 2791, one plant only
growing with the common Achillea lanulosa Nutt., from which it is strik-
ingly divergent. Very different from any other North American species
in its very loosely divided leaves, large involucres, and rayless heads.
Arnica aphanactis, n. sp.
Rootstocks slender, creeping; herbage wholly glabrous except the mi-
nutely puberulent peduncles; stems 30 cm. high, somewhat shiny; basal
leaves not seen; cauline 2 pairs, elliptic or slightly ovate, paler beneath.
106 Proceedings of the Biological Society of Washington.
obtuse, coarsely irregularly serrate, 2-5 cm. long, the lower pair short
petioled, the upper pair sessile and larger heads; three, long-peduncled from
a lanceolate acute dentate sessile green bract heads; campanulate, rayless,
1.5 cm. high, 1 cm. broad; tegules 8, linear-lanceolate, acuminate, shorter
than the flowers, glabrous; disk flowers about 25, each 1 cm. long; pappus
bright white, barbellulate akenes; cylindric, glabrous.
Mount Baker, Washington, G. W. Turesson in 1915. Closely allied to
A . latifolia Bong, and A . betonicaefolia Greene but rayless.
Arnica andersonii, n. sp.
Stems erect, 30-50 cm. high, very sparsely pubescent, simple or more
commonly with a flowering branch in the axil of each cauline leaf; basal
leaves with petioles as long as the blades, the latter thin, oblong to narrowly
ovate, acute, abruptly narrowed at base, coarsely few-toothed, glabrous
except the ciliolate margins, 6 to 8 cm. long; cauline leaves two pairs, the
lower pair similar to the basal and petiolate, the upper sessile and usually
conspicuously contracted at base; heads nodding in bud, large, each sub-
tended at base by a pair of more or less modified leaves; involucre cam-
panulate, 1.5 cm. broad; tegules 10, green, thin, lanceolate, acute, viscidly
pubescent, 1.5 cm. long; rays about 10, lemon-yellow, 3 cm. long; disk
florets 11-13 mm. long; akenes hirsutulous, 6-8 mm. long; pappus bright
white, copious, short-plumose.
Skeena, Br. Col., /. R. Anderson, Sept. 11, 1910. Allied to A. cordifolia
Hook, but differing particularly in the basal leaves and the pair of folia-
ceous bracts at the base of each head.
Arnica myriadenia, n. sp.
Stems clustered from a much branched caudex, erect, 30-50 cm. high,
densely and minutely glandular, becoming increasingly hirsutulous toward
the heads; basal leaves apparently none; cauline leaves 4 or 5 pairs with
green blades and 2 or 3 basal pairs much reduced and more or less scarious,
all sessile and connate at base, the lower ones conspicuously sheathing,
lanceolate becoming narrower upwards, acute, entire or sparingly den-
ticulate, densely and minutely glandular on both faces and somewhat
puberulent especially on the margins, 4-12 cm. long, exceeding the inter-
nodes; heads 3 to 5, hemispheric, 2 cm. broad, short peduncled; tegules
about 11, lanceolate, acuminate, green, densely glandular and somewhat
puberulent, equalling the disk flowers; rays bright yellow, 1.5 cm. long;
disk flowers 40-60; pappus brownish, barbellulate; akenes sparsely his-
pidulous, not glandular; plant strongly odorous.
Mount Rainier National Park, Washington, growing in talus on Owy-
high, 5700 feet altitude, J. B. Flett No. 3211, August 13, 1919. The
plant was found in no other place.