173 



Fk;. 469. Sporobolus filiformis (Thurb.) Scribn. New Comb. 

 ( Vilfa dejjauperata fiJiformis Thurb. in S. Wats. Bot. King Exped 

 376. 1871.) Si.EXDER Rush-grass. — A very slender, densely 

 tiiited annual 0.8 to 3 (usually about 1.5) dm. higli, Avith short, 

 narrow leaves, scape-like culms, and linear, few-fiowered panicles. 

 Spikelets about 2 mm. long. — Moist hoil in the mountains, Wash- 

 ington to California and eastward to Utah and ( ? ) Colorado. 

 J uly-Sei)tember. 



