CXLII. ORAMINEiE. 



435 



keeled, acute or awned or rarely 

 blunt. Panicle contracted, spike- 

 like '. . . 74. KCELEEIA. 



Flowering glume and palea pointless, 

 thick, the nerves parallel. 

 Flowering glume convex or rounded 



on back, faintly 5-nerved . . .75. AxuoriS. 

 The section of Festtica, called Schoe- 



nodortis, would come here . . 79. Festuca {sect. 

 Flowering glume generally com- Schoenodorus). 



pressed, keeled, 5-nerved, mem- 

 branous ; palea falhng off with 



flowering glume 7G. POA. 



Flowering glume keeled, 3-nerved, 



deciduous ; palea persistent . . 77. EeagrOSTis. 

 Grain adhering to palea, except m the sect. 

 Schoenodonis of Festuca. 

 Spikelets all similar, equally fertile. 



Flowering glume rounded at back, very 



obtuse, pointless, many-nerved . . 78. Briza. 

 Flowering glume rounded on back, acute 



pointed or awned at top, few-nerved. 79. Festuca. 

 Flowering glume convex or keeled on 

 back, mostly awned or bristle-bearing 

 below the 2-cleft top, 5-9-nerved. 

 Grrain not 3-horned or angled . . . 80. Beomus. 

 Grain 3-horned, otherwise as m. Bromus 81. Ceeatociiloa. 

 Spikelets dissimilar, some fertile, some 



sterile 82. Cynosurus. 



Stamens 6, rarely 3. 



Two lowest flowering glumes male or neuter, 



very unlike the solitary fertile one .... 83. Ehehaeta. 



Subtribe 7. BAMBrsE-E. 



Spikelets with only 1 perfect flowering gh;me, 



nearly sessile. Stamens 6. Stigma deeply 3-fid 84. Nastus. 



Subtribe 8. Hoedeace^e. 



Spikelets placed singly at each joint of the rachis. 

 Spikelets decidedly sessile. 



Spikelets 1 -flowered, with a terminal rudi- 

 meutai-y glume, somewhat immersed in 



the rachis 85. MoNEEMA. 



Spikelets several-flowered, 1 glume obsolete ; 



ovary glabrous 86. Lolium. 



Spikelets several-flowered, both glumes pre- 

 sent ; ovary hirsute 87. Teiticum. 



Spikelets shortly pedicellate 88. Beacuypodiuji. 



Spikelets placed in threes at each joint of the 



rachis 89. Hoedeum. 



TiiiBE 1. Paxicej^. 

 Subtribe 1. Eupanice^. 

 1. PASPALUM, Liii]i. 

 Suikelets in slcudcr uniliitcrul spikes, l-llawercd, not a\^iie(.l 



2 F 2 



