GENERA OF GRASSES OF THE UNITED STATES. 181 



falling entire; glumes equal, inflated, obovate. 3-nerved, rounded 

 above but the apex apiculate; lemma narrow, 5-nerved, acuminate, 



about as long as the 

 glumes; palea 2- 

 nerved, nearly as 

 long as the lemma. 

 Aa erect, rather 

 stout annual, with 

 flat blades and nu- 

 merous short ap- 

 pressed spikes in a 

 narrow more or less 

 interrupted panicle. 

 Species one, in the 

 cooler parts of 

 America and Eur- 

 asia. 



Type species : PJialaris erucae- 

 fonnis L. 



Beckmannia Host, Gram. 

 Austr. 3: 5, pi. 6. 1805. Only 

 one species described. 



Beckmannia erueaeformis 

 (L.) Host (fig. 108) is a 

 marsh plant, found from 

 Iowa to California and 

 Alaska where it is often 

 called slough-grass. It is 



FIG. 107. Schedonnardus t> aniculatus. palatable to Stock, is 

 Plant, X I ; spikelet and floret, X 5. r 



