264 FORAGE PLANTS AND THEIR CULTURE 



lanceolate, 2 to 3 mm. broad, readily shattering (Tunis-grass) 

 or persisting (Sudan-grass). I Grass sorghums. 



** Stems stout, usually 18 to 30 mm. in diameter ; leaves 

 broader, 45 to 75 mm. broad ; panicles various. 



I. Pith juicy. 



A. Juice abundant and very sweet. 



1. Internodes elongated; sheaths scarcely overlap- 

 ping ; leaves 12-15 (except in Amber varieties) ; 

 spikelets elliptic-oval to obovate, 2.5-3.5 mm. 

 wide ; grains reddish brown. II Sorgo. 



B. Juice scanty, slightly sweet to subacid. 



1. Internodes short ; sheaths strongly overlapping ; 



leaves 1215 ; peduncles erect ; panicles cylin- 

 drical ; spikelets obovate, 3-4 mm. wide; lem- 

 mas awnless. Ill Kafir. 



2. Internodes medium ; sheaths scarcely overlapping ; 



leaves 8-11; peduncles mostly inclined, often 

 recurved ; panicles ovate ; spikelets broadly 

 ovate, 4.5-6 mm. wide ; lemmas awned. 



VIII Milo. 



II. Pith dry. 



A. Panicle lax, 2.5-7 dm. long ; peduncles erect ; spike- 

 lets elliptic-oval or 'obovate, 2.5-3.5 mm. wide; 

 lemmas awned. 



1. Panicle 4-7 dm. long ; rhachis less than one-fifth 



as long as the panicle. 



. a. Panicle umbelliform, the branches greatly 

 elongated, the tips drooping ; grains reddish, 

 included. IV Broom-corn. 



2. Panicle 2.5-4 dm. long; rhachis more than two- 



thirds as long as the panicle. 



a. Panicle conical, the branches strongly drooping ; 

 glumes at maturity spreading and involute ; 

 grains white or somewhat buff. V Shallu, 



