AOHOSTIDEJi;. 341 



euj-ia Sid-sdorfii Scribii. Vjisey, Desc. Cat. Gr. U. 8. 51 

 (1885). 



A sloiuler tufted perennial, GO-00 cm. liigli. Slieatlis shorter 

 tliun tlie interiiodes: ligule ;J -5 mm. long, often more or less 

 woolly ])ubescent on the back near the base of blade; blades of sterile 

 shoots 15-30 cm. long, ;j-5 mm. broad, taperiiig into very long and 

 slender ])oints, scabrous below and strigose pubescent above; those 

 of the culm usually three. Panicle pale straw-color, strict, more 

 or less interru])ted, 8-10 cm. long, 1.5-2 cm. wide; rays in crowded 

 clusters, 2-3 cm. distant, the longest 4 cm. long, all densely 

 flowered. Spikelets 3-4 mm. long, empty glumes subequal, lan- 

 ceolate, acute, first 1-nerved, second 3-nerved at the base; floral 

 glume oblong, truncate-toothed. 2.7 mm. long, the stout twisted 

 awn starting below the middle and extending 1-2 mm. above its 

 glume, hairs less than 1 mm. long, in two bunches near the mar- 

 gins of the base of the glume; palea as long as its glume, rudiment 

 1 mm. long, with hairs making it appear still longer. 



In the JMontana plants, the woolly pubescence at the base of the 

 blade is wanting. 



Montana (Great Falls), Anderson 54: British Columbia, Macoun 

 in 1885; Oregon, Cusick 1317. 



Montana, British America. Washington. Oregon, and California. 

 G. C. rubescens Buckl. Proc. Pliila. Acad. 92 (1803). nc//r/t.ria 

 rnhesconti N'asey. Cat. Gr. V. S. 51 (1885). 



Aslendererect tufted perennial, more or less j)urple throughout, 

 60-90 cm. higli, from strong rootstocks. Sheaths half as long as 

 the internodes; ligule acute, lacerate, decurrcnt, 3-5 nun. long; 

 blades of sterile shoots numerous, involute, setaceous, gliuicous. sca- 

 brous, 10-20 cm. long, 3 mm. wide, those of the culm 3-4 in num- 

 ber, 10-15 cm. long, the upper one 4 cm. long, short woolly hairs 

 usually appearing on the lower side at the base of the blade. Pani- 

 cle much exserted. strict, dense, interrupted, 7-10 cm. long, 1.5 

 cm. broad, the short rays densely flowered to the base. Spikelets 

 rough, elliptical, acute, nearly 4 mm. long; empty glumes equal 

 or slightly unequal, ovate-lanceolate, first 1-nerved, second 3- 

 nerved ; tlord glume a little shorter, narrowly elliptical, acute, bifid. 



