m.end.ph. 10. GRAMINEiE. 85 



Lower spathellule with a very short seta 

 below the tip ; upper 2-cut ; panicle spiked Koeleria. 67. 



Lower spathellule with a short seta helow 

 the tip, nicked; upper 2-cut; panicle com- 

 pound, glomerated Dactylis. 66. 



Lower spathellule with a long seta below 

 the tip, nicked ; upper 2-cut ; locusta few- 

 flowered; panicle compound Zerna. 61. 



Lower spathellule with a straight awn and 

 cordately nicked below the tip; locusta many- 

 flowered ; panicle loose Bromus. 62 » 



Lower spathellule with a flexuous awn on 

 the back ; Jlowrets dissimilar, lower almost 

 awnless Holcus. 79. 



Loiver spathellule with a fl^exuous awn above 

 the middle; Jlowrets all alike; apex 2-bristled 



Trisetum. 72, 



Lower spathellule with a plaited awn above 

 the middle ; Jlowrets all alike ; bristles none ; 

 seed husked Avena. 74, 



Lower spathellule torn, awned below the 

 middle; awn filiform, plaited, twisted; seed free AiRA. 77. 



Lower spathellule not notched, awned be- 

 low the middle; middle of the awn jointed, 

 woolly ; below twisted ; above clubshape 



Corynephorus. 81, 



Lower spathellule many-toothed, awned at 

 the base ; aiun straight, scarcely longer than 

 the glumelle Deschampsia. 80. 



Loiver spathellule 2-toothed, apex awned ; 

 iipper obtuse, truncated; lodicule ovate . . Danthonia. 73. 



B. J xis jointed or toothed; glumes inserted parallely^ 

 a. LocusicB many-Jiowered ; Jlowrets hernfiaphrodite. 



Spathellules awnless; lower erose, many- 

 toothed ; glumes margin hyaline ; lod. heart- 

 shape Glyceria. 65. 



Spathellules awnless, lower truncate, erose, 

 toothed ; glumes 3-toothed ; lodicide lanceolate 



Catabrosia. 76. 



Spathellules awnless ; lower heartshape, 

 nicked, obtuse; upper not nicked; lod. nicked; 

 locusta unilateral Sclerochloa. 52. 



