54 



MISC. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



Colorado, and New Mexico; in the 

 Eastern States from New England 

 and Illinois to Virginia and Arkansas. 

 39. Bromus rubens L. Foxtail 

 chess. (Fig. 38.) Culms 15 to 40 cm. 

 tall, puberulent below the panicle; 

 sheaths and blades pubescent ; panicle 

 erect, compact, ovoid, usually 4 to 8 

 cm. long, usually purplish; spikelets 

 4- to 11-flowered, about 2.5 cm. long; 



40. Bromus madritensis L. (Fig. 

 39.) Resembling B. rabens, but the 

 culms smooth below the less dense 

 panicles; sheaths mostly smooth; 

 blades puberulent to glabrous ; panicle 

 5 to 10 cm. long, oblong-ovoid (in 

 dried specimens more or less fan- 



FlGUKE 38 



-Bromus rubens, X 1. 

 Calif.) 



(Blankenship 36, 



first glume 7 to 9 mm. long, the second 

 10 to 12 mm. long; lemmas scabrous 

 to coarsely pubescent, 12 to 16 mm. 

 long, the teeth 4 to 5 mm. long; awn 

 18 to 22 mm. long, somewhat spread- 

 ing at maturity. O — Dry hills and 

 in waste or cultivated ground, Wash- 

 ington to southern California, very 

 abundant over extensive areas, and 

 east to Idaho, Utah, and Arizona; 

 Texas; Massachusetts. 



Figuhe 39. — Bromus madritensis, X 1. (Eastwood, 

 Calif.) 



shaped); lemmas a little longer than 

 in B. rubens j the teeth 2 to 3 mm. 

 long; awn rather stout, 16 to 22 mm. 

 long. O — Open ground and waste 

 places, Oregon and California; less 

 common than B. rubens. Occasionally 

 cultivated for ornament. 



41. Bromus tectorum L. Downy 

 chess. (Fig. 40.) Culms erect or 

 spreading, slender, 30 to 60 cm. tall; 



