MANUAL OF THE GRASSES OF THE UNITED STATES 



47 



Figure 25. — Bromus frondosus, X 1. (Hitchcock 13282, N. Mex.) 



26.) Culms 30 to 60 cm. tall; sheaths 

 and blades pilose-pubescent; panicle 



5 to 15 cm. long, lax, secund, droop- 

 ing; spikelets rather few, oblong- 

 ovate, 1.5 to 2.5 cm. long, about 1 

 cm. wide; glumes broad, obtuse, the 

 first 3- to 5-nerved, the second 5- 

 to 9-nerved, about twice as long as 

 the first; lemmas 10 mm. long, very 

 broad, inflated, obtuse, smooth, with 

 a broad scarious margin, nearly or 

 quite awnless. O — Sandy fields 

 and waste ground, Canada and Alas- 

 ka; occasional from Washington, 

 Montana, and Wyoming to Cali- 

 fornia, rare eastward to Massachu- 

 setts and Delaware; introduced from 

 Europe. Sometimes cultivated for 

 ornament. 



28. Bromus secalinus L. Chess. 

 (Fig. 27.) Culms erect, 30 to 60 cm. 

 tall; foliage glabrous or the lower 

 sheaths sometimes puberulent; pan- 

 icle pyramidal, nodding, 7 to 12 cm. 

 long, the lower branches 3 to 5, un- 

 equal, slightly drooping; spikelets 

 ovoid-lanceolate, becoming somewhat 

 turgid at maturity, 1 to 2 cm. long, 



6 to 8 mm. wide; glumes obtuse, the 

 first 3- to 5-nerved, 4 to 6 mm. long, 

 the second 7-nerved, 6 to 7 mm. 

 long; lemmas 7-nerved, 6 to 8 mm. 

 long, elliptic, obtuse, smooth or sca- 

 berulous, the margin strongly in- 

 volute at maturity, shortly bidentate 

 at apex, the undulate awns usually 



Figure 26. — Bromus brizaeformis, X }/2- (Leckenby 

 40, Wash.) 



3 to 5 mm. long, sometimes very 

 short or obsolete; palea about as 

 long as lemma. O — Introduced 

 from Europe, a weed in grainfields 

 and waste places, more or less through- 

 out the United States. Also called 

 cheat. Occasionally utilized for hay 

 in Washington and Oregon. In fruit 

 the turgid florets are somewhat dis- 

 tant so that, viewing the spikelet side- 

 wise, the light passes through the 

 small openings at base of each floret. 

 Bromus secalinus var. velutinus 



