732 GRAMINEA GALAMAGROSTIS 
C. Suksdorfli Scribn. Vasey Monog. Grasses U. S. 82. A loosely 
tufted perennial: stems rather slender, 1-3 feet high, erect smooth: 
sheaths shorter than the internodes: ligules about 1 line long, obtuse, 
often lacerate: leaves usually involute, 6-12 inches long, about line wide: 
panicle narrow, 2-6 inches long, densely flowered, its branches ascending 
or appressed: empty glumes oblong, acute, keeled, 1% line long: flower- 
ing glume lanceolate, about 1 line long, 2-toothed at the apex: awn nearly 
straight, attached below the middle, but little longer than the glume: basal 
hairs very few or none: palet lanceolate, nearly as long as the glume. In 
open woods, eastern side of the Cascade Mountains. 
Var. luxurians Kearney U. S. Dept. Agr. Div. Agrost. Bull. 11, 24. 
Stems stout, 4-5 feet high, usually of softer texture: leaves softer and less 
Pane ees ‘ panicle larger and more loose. Washington to Brit. Columbia 
and Idaho. 
C. Langsdorfii Trin. Unifl. 225. Densely cespitose perennial: stems 
erect, simple, 2-4 feet high, smooth or roughish: sheaths shorter than the 
internodes: ligules 1-3 lines long: leaves 4-12 inches long, 2-4 lines wide, 
scabrous: panicle 2-6 inches long, loose, its branches spreading, or some- 
times erect, the lower 1-3 inches long: empty glumes 2-3 lines long, strongly 
scabrous, lanceolate, acuminate: flowering glume lanceolate, acute nearly 
equalling the outer ones, scabrous: awn stout, about equalling the glume: 
basal hairs numerous, nearly equalling the glume: palet lanceolate. In 
damp places, California to Alaska and across the continent. 
C. lactea Beal Grasses N. Am. ii, 346. Stems stout, scabrous, 40-50 
inches high: sheaths %-%4 as long as the internodes: ligules 1-144 lines 
long: leaves 10-15 inches long, 2-3 lines wide, scabrous: panicle slightly 
exserted, silvery green, rather thin, 4-6 inches long, its branches in half- 
whorls of 4-6, the longest 144-24 inches long: empty glumes subequal, 2-3 
lines long, lanceolate, the first 1-nerved, the second 3-nerved: flowering 
glume oval, acute, 2 lines long, the slender awn attached near the base and 
equalling the glumes: basal hairs numerous, about half as long as the 
glume. Northern Washington. 
C. Canadensis Beauv. Agrost. 157. A densely cespitose perennial : 
stems 2-5 feet high erect aim smooth or somewhat scabrous, sheaths 
shorter than the internodes; ligules 1-3 lines long; leaves 6-12 inches long 
or more, 1-4 lines wide, rough: panicle 4-7 inches long, open, usually purp- 
lish, the branches spreading or ascending, the lower 1-3 inches iong, naked 
at the base: empty glumes subequal acute strongly scabrous, 144-2 lines 
long: flowering glume lanceolate, about equalling the empty ones, scabrous: 
awn delicate, about equalling the glume: basal hairs numerous, about 
equalling or shorter than the glume. Commonin wet meadows, California 
to Alaska and across the continent. 
Var. acuminata Vasey U. 8S. Dept. Agr. Div. Agrost. Bull. 5, 26. 
Panicle commonly rather small, more flexuous, and densely flowered, usu- 
ally dark purple: empty glumes narrower, sharp attenuate-acuminate, 
usually much more scabrous: awn longer, often exceeding the flowering 
glume. In meadows, California to Alaska and the Rocky Mountains. 
C. Macouniana Vasey Contrib. U. 8. Nat. Herb. ili, 81. Stems 2-3 
feet high, erect, smooth: sheaths shorter than the internodes: ligules about 
1 line long: leaves 3-7 inches long, 1-244 lines wide, erect, acuminate, 
scabrous: panicle open, 38-5 inches long, its branches ascending or some- 
times erect, the lower I-11 inches long: empty glumes about | line long, 
acute, scabrous, the first shorter than the second: awn a little exceeding 
the glume: basal hairs about equalling the glume. Washington to Brit. 
Columbia and Manitoba. 
C. Scribneri Beal Grasses N. Am. ii, 343. Stems rather slender, 
