CALAMAGBOSTIS GKAMINE^E 733 



erect, 30-40 inches high, from a perennial base: sbeaths scabrous, much 

 shorter than the internodes: ligules \% lines long; leaves scabrous, about 

 10 inches long, 2 lines wide: panicle lanceolate in outline, about 7 inches 

 long, its branches erect, the longest 2-3 inches long: empty glumes equal, 

 scabrous: flowering glume oval, truncate, 4-toothed, 1-1% lines long: 

 awn rather short, attached below the middle and extending beyond the 

 glume: basal hairs about 1 line long: palet nearly as long as its glume. 

 Oregon and Washington to Montana. 



C. Cusickii Vasey Contrib. U. S. Nat, Herb, iii, 81. Loosely tuft- 

 ed perennial with numerous sterile shoots and few erect flowering stems 

 3-4 feet high: sheaths nearly smooth, of the stem half as long as the in- 

 ternodes, or the lower ones equalling the internodes, of the shoots close 

 and overlapping: ligules obtuse, 2-3 lines long: leaves flat, 0-15 inches 

 long, 2-4 lines wide, hispid on both sides: panicle 6 inches long, narrow 

 and densely flowered, its unequal branches erect or ascending, the lower 

 ones 1-2 inches long: empty glumes lanceolate, acute or acuminate, 

 convex, nearly smooth, rigid, the first 1-nerved, 2-2>^ lines long, the sec- 

 ond obscurely 3-nerved and slightly shorter: flowering glume 4-toothed 

 at the slightly cleft apex 1% lines long: awn attached below the middle, 

 exceeding the glume: basal hairs scanty, about half as long as the glume. 

 In the mountains of eastern Oregon to California. 



C. neglecta Gaertn, Fl. Wett. i. 91. Glabrous and smooth through- 

 out: stems slender, 18-30 inches high: sheaths shorter than the internodes: 

 ligules % line long or less, truncate: leaves narrow, involute, the basal 

 Yz as long as the stems, those of the stems 2-5 inches long, erect: panicle 

 contracted, 2-4 inches long, its branches 1 inch long or less, erect: empty 

 glumes about 2 lines long, acute, scabrous: flowering glume about % as 

 long as the outer ones, obtuse: awn bent, exceeding the glume: basal hairs 

 numerous, about half as long as the glume. In wet places, Oregon and 

 Washington to Labrador and Newfoundland. 



C. iiiexpaiisa Gray Gram. et. Gyp. i, 20. Stems 1)^-3 feet high, 

 erect: leaves 2 lines wide or less, rough, flat, or involute at the apex, the 

 basal often 34 -% as long as the stems: panicle contracted, 2-9 inches long, 

 its branches 1-2 inches long, erect: empty glumes 1)^-2 lines long, acute, 

 somewhat scabrous: flowering glume obtuse, shorter than the outer ones: 

 awn more or less bent, from a little shorter to longer than the glume: basal 

 hairs equalling or shorter than the glume. Brit. Columbia to New York, 

 to be looked for in Idaho. 



Var. cnprea Kearney II. S. Dept. Agr. Div. Agrost. Bull. 11, 37. 

 Somewhat stouter and more rigid : panicle more densely flowered : empty 

 glumes copper-color or dark purple with copper-colored tips. In shallow 

 water, base of Mount Adams, Washington. 



Var. barbulata Kearney 1. c. Stems stout, pubescent just below 

 the strongly constricted nodes with short reflexed hairs, somewhat scab- 

 rous for pome distance below the pubescence; sheaths strongly,, twisted: 

 panicle rather rigid, purplish: awn very short, attached above thVmiddle, 

 not equalling the glume, often wanting. Mason Co. Washington. 



C. hyperfoorea Lange FL Dan. 50. Stems l)-3jfeet high, erect, 

 smooth: sheaths shorter than the internodes: ligules aboutjl line long: 

 leaves 2 lines wide or less, rough, flat, those of the stem 2-10 inches long: 

 panicle narrow, 2-9 inches long, its branches 1-2 inchesf long, j erect: emp- 

 ty glumes about 2 lines long somewhat scabrous, acute L ^flowering glume 

 nearly equalling the outer ones, obtuse: awn more orless bent, from a 



