STATE AGRICULTURAL SOCIETY. 135 



Yilfa . — Californian rush grass. 



A tall, coarse, rough, glaucous grass, forming very largo tufts in 

 springy j)laces, generally on little flats; Sierras; quite common in the 

 vicinit}' of Auburn and Forest Hill; July to September; perennial; 

 useless. 



Yilfa asperifolia (Nees. Meyen.) 



Owen's Yalley; Virgnia City (Mr. Bloomer.) A low, creeping grass, 

 with long subtei'ranean suckers forming mats. June, July ; use doubtful. 



Vilfa triclio lepis (Torr.) 



Eastern portion of the State; use doubtful. 



va/a . 



Sierras. A low, tufted grass, apparentl}^ quite common; use doubtful. 

 July. 



Vilfa airoides (Trin.) 



Southern California (Dr. Cooper.) Mr. C. J. Croft, of the United 

 States Army, writes from Arizona : ''A portion of the Gila Valley is 

 covered with this species. Animals eat it readily when green. It is, 

 however, a powerful diuretic." 



Agrostis vulgaris (With.) — Eedtop. 



Yai'ious places throughout the State; introduced; generally known. 



Agrostis alba (Schr.) — White bent grass. Florin grass. 



But little observed in this State. (?) 



Agrostis verticillata (ViH.) — Whorled bent grass. 



Wet places, especially watercourses; .San Francisco; San Leandro. 

 It is frequently found growing with Poa annuo and Fohjpogon Jugax^ on 

 borders of moist sidewalks in San Francisco. Here it blossoms all the 

 year; perennial; useless. New Mexico; Southern Europe; Western 

 Asia. 



Agrostis exarata (Trin.) 



This is the most variable grass of this coast; from three inches to 

 three and four feet high; panicle either contracted or moderately spread- 

 ing. When large it is a coarse, rough grass, and avoided by cattle. 

 Moist, swampy places on the coast up to Mendocino City; dry hills near 

 Auburn. April, May; annual. 



Agrostis pollens (Tlrm.^ (?) 



San Francisco. But little observed. 



