MANUAL OP THE GRASSES OF THE UNITED STATES 



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pilose with appressed hairs, the margin whitish; awn from below 

 the entire apex, 5 to 7 mm long; palea a little shorter than the lemma; 

 anthers 0.4 mm long, about as broad. O — Open 

 ground, southern California; introduced from Europe. 

 27. Bromus racemosus L. (Fig. 41.) Differing from 

 B. mollis in the somewhat more open panicle and gla- 

 brous or scabrous lemmas. O (Including what in 

 this country has been called B. hordeaceus glabrescens 

 Shear, B. hordeaceus var. leptostachys Beck, and B. 

 mollis i. leiostachys Fernald.)— Weed in waste places, 

 chiefly on the Pacific coast and east to Idaho, 

 Colorado, and Arizona; a few points from 

 Illinois to Maine and North Carolina (fig. 42) ; 

 introduced from Europe. 



Bromus scoparius L. Resembling B. 

 molliformis; culms 20 to 30 cm tall; sheaths 

 soft-pubescent; blades glabrous, scabrous or 

 sparingly pilose; panicle contracted, erect, 

 3 to 7 cm long; spikelets about 1.5 cm long, 

 3 to 4 mm wide ; lemmas about 7 mm long, 

 narrow, glabrous; awn 5 to 8 mm long, finally divaricate, 

 O — Introduced from Europe in California (Mariposa) 

 and Virginia (Newport News, on 

 ballast). 

 FlG1 Bromus macrostachysL. Annual; 



Bromus roc- culms erect, 30 to 60 cm tall; panicle 



ff 772 ft ^77 ? ^^ 'S • • "I* J* 



(Hitchcock narrow, compact, consisting ol a tew 



2667, caiif.) j arge S pik e | e ts about 3 cm long. 



O -Wool waste, Yonkers N.Y. Sometimes figure 42 _ Distribution 

 cultivated for ornament. Mediterranean region. Bromus racemosus. 



Mi 



Figure 40. — Bro- 

 mus molliformis, 

 X 1. (Chase 5564, 

 Calif.) 



Figure 43.— Bromus japonicus, X 1. (Deam 6833, Ind.) 



28. Bromus japonicus Thunb. Japanese chess. (Fig. 43.) 

 Culms erect or geniculate at base, 40 to 70 cm tall; sheaths and 



