MANUAL OF THE GRASSES OF THE UNITED STATES 47 



blades usually sparsely pilose on both sides, 5 to 10 mm wide; panicle 



Figure 30.— Bromus kalmii, X 1. (Chase 1866H, Ind.) 



rather few-flowered, drooping, mostly 5 to 10 cm long, the branches 

 slender, flexuous, bearing usually 1 to 3 spike- 

 lets; first glume 3-nerved, the second 5-nerved; 

 lemmas 7 to 10 mm long, pubescent over the 

 back, more densely so near the margins; awn 

 2 to 3 mm long. % — Dry or sandy ground 

 and open woods, Maine to Minnesota and 

 South Dakota, south to western Maryland 

 and Iowa (fig. 31). Called wild chess. 



21. Bromus frondosus (Shear) Woot. and Standi. 



Figure 31.— Distribution of 

 Bromus kalmii 



(Fig. 32.) 



Figure 32.— Bromus frondosus, X 1. (Hitchcock 13282, N.Mex.) 



Culms erect to weakly reclining, 80 to 100 cm tall; sheaths gla- 

 brous or the lower pilose; blades pale green, 

 scabrous, mostly less than 5 mm wide, oc- 

 casionally to 10 mm, rarely wider; panicle 

 open, drooping, the slender lower branches 

 naked below: first glume 2- to 3-nerved; 

 lemmas pubescent all over, rarely nearly 



figure 33.— Distribution of glabrous. % (B. porteri frondosus Shear.) — 



Bromus frondosus. Q pen woodg and rQcky s l opes . Colorado, 



Utah, New Mexico, and Arizona (fig. 33). 



66974°— 35 i 



