18 



Stipa comata. 



Common on the dry barrens. 

 Stipa occidentalism 



Common in wet soil everywhere. 

 Sporobohis asperif 'alius. 



Common on low land. 



Sporobolus cuspidatus. 



Common on the river-bank. 



Bromus secalinus (chess.) 



Common on irrigated lands. 

 Bromus mollis. 



Occasionally found in dry soils. Very common in the Napa Val- 

 ley, Cal. 

 Bromus maximus. 



Common along roadsides. 

 Bromus racemosus. 



Occasionally found on wet ground. 

 Bromus breviaristatus. 



Grows sparingly along the river bank. 

 Eatonia obiusata, var. 



Along ditch banks. 

 Beckmannia (Wild timothy). 



Common on wet ground and in shallow water from here east to 

 Elko, Nev. It is valued very highly both for hay and past- 

 ure. Many regard it as the most valuable of all the native 

 species, but it will grow onlj- on soil which is constantly wet. 

 Holcus lanatus. 



Occasionally found on ditch banks. 

 Hot •deum murinum. 



Very commou. 

 Eragrostis major. 



Introduced and yearly becoming more common in the valley. 



Festuca microstachys. 



Occasionally found on the barrens. 

 Agropyrum glaucum (Blue-joint, Blue-grass). 



Common and valued. 

 Oryzojjsis Webberi. 



On ditch banks and barrens. 

 Eragrostis poGioides (small form). 



On ditch banks. 

 Pohjpogon. 



In strongly alkaline soil, 



