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



spikelets (excluding the awns) 3 to 4 mm long, the glumes about half 



as long, broad at base, abruptly 

 acuminate, scaberulous ; lemma nar- 

 row, pubescent toward the base, 

 tapering into a slender straight awn 

 3 to 10 mm long. 01 Rocky 

 woods, Ontario and Vermont to 

 Iowa, south to Virginia, Tennessee, 

 and Oklahoma (fig. 765). 



24. Muhlenbergia brachyphylla 

 Bush. (Fig. 766.) Perennial, with 

 numerous slender scaly rhizomes; 

 culms slender, suberect, freely 

 branching at the middle nodes, 

 the branches lax, glabrous or ob- 

 scurely scabrous below the nodes; 

 blades flat, spreading, scaberulous, 

 mostly 7 to 15 cm long and 3 to 

 5 mm wide; panicles on filiform 

 peduncles, very slender, lax, rela- 

 tively few-flowered, mostly 8 to 15 

 cm long; spikelets, excluding the 

 awn, about 3 mm long, the glumes 

 about two-thirds as long, awn- 

 tipped ; lemma minutely pubescent 

 toward the base, tapering into a 

 slender awn 3 to 6 mm long, rarely 

 shorter. 91 Low woods, Indiana 



fr TVfjhrnclra crmth tr TPYOQ fficr 

 tO IMeOraSKa, SOUtn tO LexaSJJlg. 



767). Resembling M. tenmflora, 

 but with numerous filiform branches and more slender panicles. 



FIGURE 761. Muhlenbergia californica. Plant, X 

 l; glumes and floret, X 10. (Parish 2113, Calit) 



FIGURE 762. A, Muhlenbergia sobolifera. Plant, X 1; glumes and floret, X 10. (Metcalf 1589, N.Y.) 

 B, Var. setigera, X 10. (Reverchon 1049, Tex.) 



25. Muhlenbergia racem6sa (Michx.) B.S.P. MARSH MUHLY. 

 (Fig. 768.) Perennial, from stout creeping scaly rhizomes; culms 

 erect or reclining, 50 to 100 cm tall, or even more, slightly roughened 



