10. GRAMINEiE. 
85 
PL end.plu 
Lower spatkellule with a very short seta 
below the tip; itpper 2-cut; panicle spiked Koeleria. 67. 
Lower spathellule with a short seta below 
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; locustce many- 
flowered ; panicle loose Bromus. 62. 
Lower spathellule with a flexuous awn on 
the back; Jlowrets dissimilar, lower almost 
awnless Holcus. 79. 
Lower spathellule with a flexuous awn above 
the middle ; Jlowrets all alike; apex 2-bristled 
Trisetum. 72. 
Lower spathellule with a plaited aw r n 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; awn straight, scarcely longer than 
the glumelle Deschampsia. 80. 
Lower spathellule 2-toothed, apex awned ; 
upper obtuse, truncated; lodicule ovate . . Danthonia. 73, 
B. Axis jointed or toothed ; glumes inserted parallely » 
a. Locustce many-Jlowered ; Jlowrets hermaphrodite, 
Spathellules awnless; lower erose, many- 
toothed ; glumes margin hyaline ; lad . hearth- 
shape Glyceria. 65. 
Spathellules awnless, lower truncate, erose, 
toothed ; glumes 3-toothed ; lodicule lanceolate 
Catabrosia. 76. 
Spathelhdes awnless ; lower heartshape, 
nicked, obtuse; upper not nicked; lod. nicked; 
locusta unilateral Sclerochloa. 52. 
