342 POACE.E. 



tlie stiff twisted and bent awn starting a little below the middle 

 and extending to the apex of its glume or a little beyond, hairs in 

 2 tufts, one on eitlier side, less tlian half as long as the glume; rudi- 

 ment 1 mm. long, with a few short hairs rp'ichiug beyond the apex. 



California (Meiulocino), Prinyh in 1882. 



Oregon to California. 



7. C. Montanensis (Scribn.). Deyeuxiu Montaucnsis Scnbn. 

 Soe. Pro. Agrifl. Sci. G (1883). 



A rigid glaucous perennial, 20-40 cm. high, with slender root- 

 stocks. Sheaths 3, nearly smooth, the u})per extending nearly half 

 way to tiie top of tlie plant, or almost to the panicle; ligule firm, 

 decurrent, 3 mm. long; blades involute, rigid, i)ungent-j)ointed, 

 t)-12cm. long, 2-2.5 mm. wiile, scabrous above and below. Panicle 

 linear, dense or slightly interru})ted, 5-8 cm. long; rays in half- 

 whorls of 3-7, the longest 2.5 cm. long, flower-bearing on the outer 

 three-fifths. Spikelets pedicellate, linear-lanceolate, 4-4.7 mm. 

 long; em})ty glumes e(|ual or subequal, scabrous, first 1 -nerved, 

 second 3-nerved, the lateral nerves obscure, rudiment 1 mm. long, 

 the hairs extending to the top of the palea; floral glume scabrid,^ 

 oval, truncate, 4-5-toothed, about 3 mm. long, awn from near the 

 middle reaching to its apex; palea oval, erose or toothed, 2.5 mm.. 

 long. Anthers linear, 2.2 mm. long. 



British America. E. linufijcau in 1858. 



Montana, Canbi/ & Scrtb>ier'^G',\ in 1883. 



8. C. Porteri A. Gray, Proc. Amer. Acad. 6: 79 (1802). Dey- 

 euxia Porferi Xnsvy, Cat. (Jr. U. S. 51 (1885). 



Perennial, froni creeping rootstocks. Culms slender, ei\./, (iO- 

 120 cm. high. Slieaths close, half as long as the internod.s; ligule 

 2-3 mm. long; l)lades flat, scabrous, with a woolly-bearded ring at 

 the base on the outside, 12-20 cm. long, 5-7 mm. wide, a[)ex 

 attenuate, base narrow. I^micle exserted, ojjen or thin, 7-14 cm. 

 long, 1.5 cm. wide; rays few to many, the clusters 2-3 cm. distant, 

 1-5 cm. long. Spikelets rough, pale green, elliptical, acute, 3.5-4 

 mm. long; empty glumes nearly equal, appearing lanceolate, owing 

 to the upjier part having involute margins, first 1-nerved, second 

 obscurely 3-nerve(l; floral glume 2.5 mm. long, ovate, truncate- 



