52 GRAMINE.3S. 



or more-fld.; fl. gls. 5- many- (very rarely 3-) -nerved, 

 upper empty or ; styles short (spikelets of Bracliy- 

 podium in long very lax spikes). 



Spikelets laxly panicled, few-fld ; gls. keeled, 5- 

 nerved, awnless, nerves rarely meeting at the tip. 



70. Poa. 



Spikelets panicled, many-fld., fl. gls. acute or awned, 

 dorsally rounded, top of ovary naked or hairy. 



71. Festuca. 

 Spikelets spicate, many-fid., mucronate or awned. 



72. Brachypodium. 



TRIBE IX. HORDED:. Spikelets 1 or more-fld.; sessile, 1-2 or more 

 seriate on the rachis of a simple spike, or partially 

 sunk in cavities of the same ; rhachilla usually arti- 

 culate and produced beyond the flg. gls. into a naked 

 glumiferous bristles ; gls. awned or not, I and II 

 opposite or subcollateral, persistent or separately 

 deciduous, I sometimes absent or very minute. 

 Subtribe I. LoliecB. Spikelets solitary at the nodes of the 

 spike ; plane of the spikelets radial to the rhachis. 

 Spikelets 1-2-fld., gl. I minute or 0, II (or one 

 opposite fl. glume, or in Formosan species outer- 

 most one) much longer than the hyaline III ; spike 

 cylindiic, rachilla glabrous. 73. Lepturus. 



Subtribe II. Triticecc. Spikelets solitary at the nodes of 

 the spike ; plane of spikelets tangential to the rachis ; 

 fl. gls. 5-9-nerved, lateral nerves not conniving, 

 short or ending in teeth or awns. 74. Triticum. 

 TRIBE X. BAMBUSE.E. Shrubby or arboreous grasses. Leaves flat, 

 jointed on the sheath. Spikelets l-oo -fld.; lower 2- 

 or more gls. empty, gradually increasing in size up 

 to the flowering, with sometimes small terminal 

 imperfect ones. Palea usually large, 2-keeled. Lodi- 



