286 



Fig. 582. Bromus hookerianus Thiub. iu Bot. Wilkes Expl. 

 Exped. 2 : 493. 1874. {CeraiocMoa grandiflora Hook. Flor. Bor. 

 Am. 2 : 253. 1840.) Great Western Bro.me. A stout, erect per- 

 tuuial 3 to 12 dm. high, with pubesceut or liirsute slieaths aud 

 leaves and nearly simple, lax pauicles 20 to 35 cm. long. Spike- 

 lots 35 to 50 mm. long, 9- to 13-flowered, strongly compressed, 

 scabrid-pubescent, with sharply arnminate-poiuted empty glumes 

 and 9-nerved, short-awned llowering glumes; these more remote, 

 less compressed, and much longer awued than in 7>. hreviaristatus. 

 California to Washington, and eastward to Montana. 



