SUMMARY OF PRIMARY CHARACTERS 



99 



11. ANDROPOGONEiB, sorghum 

 tribe 



Spikelets paired, oneperfsct 



•^nd sessileTt he other ste rile 



angfpgflip,p11a.tB^ ^ojjie-en a 



jointedrg ' ' 



Fertfle spikelets with one per- 

 fect terminal floret and a 

 sterile lemma below; falling 

 with joints of rachis and 

 sterile pediceled spikelet at- 

 tached. 



Glumes indurate, inclosing the 

 florets; lemmas very thin; 

 palea often suppressed. 



[Contains sugar-cane, Johns6n- 

 grass and broom-sedges.] 



12. Teipsace^, corn tribe 



Plants moncEcious. 



Pistillate spikelets with one 

 perfect terminal floret and a 

 sterile lemma below, falling 

 embedded in the joints of 

 the rachis. Persistent on 

 the thick compound axis in 

 Zea.) 



Staminate spikelets 2-flowered 

 in pairs, racemose. 

 [Contains gama-grass and 

 Indian com.J 



FiQ. 93. 



Fio. 94. 



