129 



Fig. 111. Muhlenbergia gracilis Trin. ; Beal, Grasses N. Am., 

 2 : 242. A slender, but rather rigid, densely ciespitose perennial 

 1.5 to 6 dm. high, with narrow, involute leaves, and contracted 

 panicles 8 to 15 cm. long. Ascending to 2,700 m. or more Texas 

 to Arizona, Colorado, and Wyoming. [Mexico.] June-September. 

 11162 No. 7 9 



