286 



Fio. 5^!2. Bromus hookerianiiG Tlmil). in ]>ot. AVilkes Expl. 

 Exped. 2 : 4it:!. LsTl. [Ccriilochha grandiHura Hook. Flor. l?or. 

 Am. 2 : 253. 1840.) Great Westekn Bko.mk.— A stout, erectper- 

 cmiial 3 to 12 dm. liigli, with pube.sceut or liirsute sheaths aud 

 leaves and nearly simple, lax panicles 20 to 35 em. long'. Spike- 

 l(^ts 35 to 50 mm. long, 0- to IS-flowercd, strongly compressed, 

 seabrid-pubescent, Avith shaiply aiiiniinate-pointed empty glumes 

 and il-nerved. short-awncd llowering glumes; these more remote, 

 less compressed, and niucli longer awuud than in li. breriarixtntits. — 

 California to Washington, aud eastward to Montana. , 



