22 
11. Trachypogon polymorphus montufari Hack.—a, A pair of spikelets; 
b, pan view of the sessile spikelet; ¢,d,e, f,1st,2d,3d,and 4th glumes, 
Litenscere tahoe v Nees Agrost. Bras. 341. 1829. Spikelets asin a 
wered, i early 
ae awnless, s sterile, the other Pedicellate, fertile, and long-a ees “avenies 
rae usually 4, th ; 2d a little smaller and less 
s ea than the Ist; the 3d and 4th hyaline: 4th glume of the pedicellate spike- 
_ Tet very narrow at the base, and produced into a long twisted and geniculate 
awn. Rather tall perennial grasses with narrow leav ves and usually solitary, 
4 _Secies1, presenting many varieties. Sore ne eee 
: ee ee eee » extending in to Arizona. 
