CALAMAGBOSTIS GRAMINEZ 731 
slightly hispid near the nodes, 2-24 feet high: sheaths hispidulous or 
nearly smooth, much shorter than the internodes: ligules 2 liries long, 
lacerate or fimbriolate at the obtuse apex: radical leaves nearly as long as 
the stems, tbose of the stem 3-8 inches long, the uppermost shorter, all 
less than 2 lines wide: panicle narrow and spike-like, dense, 3-5 inches 
long, its branches appressed: empty glumes lanceolate, acute, smooth, 
purple at the apex or throughout, 2 lines long, the lower one carinate, 
1-nerved, the second convex, distinct, 3-nerved: flowering glume oblong, 
erose at the obtuse apex, smooth, 4-nerved, 14 lines long: awn attached 
14 way from the base, 2-4 lines long: basal hairs scanty and short: palet 
oblong, as long as the glume. In the high mountains, California to Alaska 
and Greenland. 
C. Vaseyi Beal Grasses N, Am. ii, 344. Stems densely cespitose, 2-3 
feet high, erect: sheaths shorter than the internodes: ligules about 1 line 
long, ciliate at the obtuse apex: leaves flat, rather rigid, 4-10 inches long, 
1-2 lines wide: panicle 3-4.inches long, narrow and spike-like, often inter- 
rupted: empty glumes about 2 lines long, lanceolate, very acute or acum- 
inate, rough on the keel: flowering glume 1% lines long, 2-toothéd at the 
apex: awn nearly straight, 1-2 lines long, attached below the middle: 
basal hairs short and rather scanty; palet linear-oblong, as long as the 
glume. In the mountains of Oregon and Washington. 
C. Tweedyi Scribn. Vasey Mon. Grasses U. 8. 83. A closely tufted 
stoloniferous perennial: stems erect, smooth, stout, 30-40 inches high: 
sheaths rather loose, smooth or slightly scabrous, shorter than the inter- 
nodes: ligules thin, 2-4 lines long: leaves flat, hispid, 1-10 inches long, 3-5 
lines wide: panicle close and spike-like, 3-4 inches long, the branches an 
inch long or less. appressed, unequal: empty glumes lanceolate, acute, 
nearly smooth, about 3 lines long, the first 1-nerved, slightly carinate, the 
second 3-nerved, cdnvex: flowering glume ovate-oblong unequally toothed 
at the rounded apex 4-nerved 24 lines long: awn attached 14 way from 
the base, twisted and bent, 3-4 lines long: basal hairs short and unequal: 
palet lance-oblong, obtuse, smooth. In the Cascade Mountains of Wash. 
C. Aleutica Bong. Veg. Sitcha 171. A densely cespitose perennial: 
stems erect, smooth, 2-5 feet high: sheaths loose, slightly roughened, 
usually shorter than the internodes: ligules ovate, nearly 2 lines long: 
leaves flat, or loosely involute, with long attenuate points, hispid on both 
sides, 10-20 inches long: panicle rather narrow, 6-20 inches long, its bran- 
ches unequal, crowded in 10-15 clusters, the longer ones 1-3 inches long: 
empty glumes narrowly lanceolate, acute, hispid on the nerves, the first 
one carinate, l-nerved, 214-3 lines long, the second convex, 3-nerved, 14 
line shorter: flowering glume oblong, obtusely 2-lobed at the apex, thin, 
hispidulous, 2 lines long: basal hairs half as long as the glume: awn at- 
tached below the middle, not equalling the glume: palet oblong, irregu- 
larly toothed or fringed at the obtuse apex. In wet places near the coast, 
California to Alaska. 
C. rubescens Buckl. Proc. Phila. Acad. 1863, 92. More or less purp- 
lish throughout: stems tufted, slender, erect, 30-40 inches high, from 
stout perennial rootstocks: sheaths half as long as the internodes: ligules 
144-2 lines long, lacerate at the acute apex: leaves of sterile shoots numer- 
ous, involute, setaceous, glaucous, scabrous, 5-10 inches long, 144-2 lines 
wide, those of the stem 3-4, 2-7 inches long, usually with some woolly 
hairs at the base of the blade: panicle strict, dense, interrupted, 3-5 inches 
long, its short branches densely flowered to the base: empty glumes ovate- 
‘lanceolate, rough, acute, the first l-nerved, the second 3-nerved: flowering 
glumes a little shorter, narrowly elliptical, acute, 2-toothed at the apex, 
the stiff twisted and bent awn arising a little below the middle and equal- 
ling the glume: basal hairs in 2 tufts, less than half as long as the glume. 
Oregon to California. : 
