MANUAL OF THE GRASSES OF THE UNITED STATES 



41 



ridges and slopes, 1,500 to 3,000 m. 

 elevation, California. 



15. Bromus grandis (Shear) 

 Hitchc. (Fig. 14.) Culms 1 to 1.5 m. 

 tall; sheaths softly retrorsely pubes- 

 cent; blades elongate, rather lax, 

 spreading, densely short-pubescent on 

 both surfaces; panicle 15 to 20 cm. 

 long, broad, open, the branches slen- 

 der, drooping, naked below, the lower 

 usually in pairs, as much as 15 cm. 

 long; spikelets 2 to 2.5 cm. long, on 

 subflexuous pedicels; first glume usu- 

 ally distinctly 3-nerved, the second 



10 mm. wide; panicle very open, 10 to 

 20 cm. long, the branches slender, 

 drooping; spikelets 2 to 2.5 cm. long, 

 coarsely pubescent throughout; lem- 

 mas 11 to 12 mm. long, the pubes- 

 cence somewhat dense on the margin; 

 awn 4 to 6 mm. long. % — Moist 

 thickets near the coast, southern 

 Alaska to western Oregon. 



17. Bromus laevipes Shear. (Fig. 

 16.) Light green or glaucous; culms 50 

 to 100 cm. tall, from a decumbent 

 base, often rooting at the lower nodes ; 

 sheaths and blades glabrous; ligule 2 



Figure 14. — Bromus grandis, X 1. (Johnston 1407, Calif.) 



Figure 15. — Bromus pacificus, X 1. (Elmer 1957, Wash.) 



3-nerved; lemmas 12 to 15 mm. long, 

 densely pubescent all over the back; 

 awn 5 to 7 mm. long. % — Dry 

 hills at moderate altitudes, Monterey 

 and Madera Counties, Calif., south to 

 San Diego. 



16. Bromus pacificus Shear. (Fig. 

 15.) Culms 1 to 1.5 m. tall, stout, 

 erect, pubescent at the nodes; sheaths 

 sparsely pilose; ligule 3 to 4 mm. long; 

 blades sparsely pilose on upper sur- 

 face, scabrous or smooth beneath, 8 to 



to 3 mm. long; blades 4 to 8 mm. 

 wide; panicles broad, 15 to 20 cm. 

 long, the branches slender, drooping; 

 first glume 3-nerved, 6 to 8 mm. long, 

 the second 5-nerved, 10 to 12 mm. 

 long; lemmas obtuse, 7-nerved, 12 to 

 14 mm. long, densely pubescent on 

 the margin nearly to the apex and on 

 the back at base; awn 3 to 5 mm. 

 long. % — Moist woods and shady 

 banks, southern Washington to Cali- 

 fornia, 



