FESTUCE^. 



445 



j. Floral glumes 5- (rarely 3-) to many- 

 nerved (P) 



p. Blades broad, coutaining transverse 



117 

 veins ^^' 



p. Blades narrow, transverse veins none, (q) 

 q. Paiucle racemose, secund, palea 



winged-ciliate H^ 



q. Panicle variable. Spikelets flat, 

 broad, lower empty glumes 3-6, 



palea not winged 119 



q. Plant dicBcious, panicle narrow, 



empty glumes 2, firm 130 



q. Flowers perfect, panicle lax, 



floral glumes cordate 131 



q. Floral glumes not cordate. . . (r) 

 r. Spikelets closely imbricate in a 

 spikelike panicle, floral glumes 

 7-nerved with glandular hairs 



at the base 133 



r. Spikelets in glomerate clusters 



of the secund panicle. . . • 133 

 r. Spikelets in panicles or racemes, 

 neither imbricate nor fascicu- 

 late, rays in half-whorls of 1-5 



or more (s) 



s. Stigmas 3, inserted at or near 

 the apex of the ovary; empty 



glumes awnless (t) 



t. Empty glumes longer 

 than the rest of the 



spikelet 138 



t. Floral glumes project 

 above at least some of 

 the empty glumes . . . (u) 

 u. Lateral nervesof thefloral 



