46 



SOPTH INDIAN GRASSES 



Inflorescence panicled ; glumes 

 three with a thickening at the 

 base of the spikelet ■•• ••• 3. Eriochloa. 



Inflorescence raeemed or panicu- 

 late; glumes four, first two 

 glumes unequal ••• ... ••• 4. Panicum. 



Inflorescence panicled, branches of 

 panicle produced beyond the 

 uppermost spikelet; glumes four, 

 the first being minute and hya- 

 line ... . ••• 5. 



Spikelets unisexual and dioecious. 6. 



CC. Spikelets awned. 



Glumes four, second glume broadly 

 fimbriate with hairs; palea of 

 the third glume short and deeply 

 cleft, fourth glume awned ... 7. 



BB. Spikelets involucellate ••• ... 8. 



AA. Spikelets not jointed but continuous. 

 Spikelets in involuceiled deciduoiiN 

 fascicles. 



Involucre of bristles free ■•• • •• 9. Pennisetum. 



Involucre of bristles united ... TO. Cenchrus. 



Chamaeraphis. 

 Spinifex. 



Axonopns. 

 Sttaria*. 



