96 



FIRST BOOK OF GRASSES 



4. Agbostide^, timothy tribe 



Like Festucese reduced to its 

 lowest terms; s pikelets 1- 

 flowere d. " 



Lermnas awnless or awned, the 

 awn from back or summit. 



Glumes sometimes awned, 

 sometimes suppressed. 



Inflorescence a panicle. 

 [Contains redtop and 

 timothy.] 



FiQ. 86. 



5. Chlorides, grama tribe 



Spikelets 1- to several-flowered, 

 sessile on one side of a con- 

 tinuous rachis. 



AU but the lowest floret com- 

 monly sterile and variously 

 modified. 



Inflo rescence of two to severa l 

 1-sided spikes^ soUtary, r ace- 

 mose or digitat e. 

 [Contains grama-grasses.] 



FiQ. 87. 



6. Nazie*, curly-mesquite 

 tribe. 



Spikelets 1- or 2-flowered, in 

 fascicles, the whole falling 

 from the main axis entire. 



[Not a natural tribe, some of 

 the genera included not 

 being closely related.] 



Fig. 88. 



