POACEAE 
» Spikelets not subtended by bristles. 
Glumes or sterile lemma awned. (Awn short, . 
concealed in the silky hairs of the 
D s Tricholaena : awn eo cen to 
a poi n Echinochloa colon 
indurescenca paniculate : spikelets. silky. 
Inflorescence of unilateral simple or some- 
at compound racemes along a 
common eae MES smooth or 
hispid, not s 
ee ieee: broad and thin 
glumes 2-lobed, awned from Bots con 
the lobes. 
M long and narrow: glumes 
ned from n tir 
Glumes and sterile lem 
Fruit S dco durae “flexible, usu- 
dark-colored, the ma with 
eae or less S "white hya- 
line margins, these not inrolled. 
Spikelets in racemes, covered with long 
silky hairs, the racemes a 
PORE glabrous or variously pubes 
ent, but no long-silky. 
Sp ike lets in jc er racemes more 
or less di igita 
Spikelets in cee 
ile lemma boat-shaped : 
anicles narrow. 
ye lemma convex: panicles 
«Fruit chartaceous- anaE, rigid. 
Spikelets placed with the back of the 
ruit turned away from the 
rachis of n dod usually 
[d 
le pai 
First Piume and the rachilla-joint 
forming wollen ring-like 
callus pelos She spikelet. 
Rirst glume oe nt or wanting, 
n. orming a Se callus 
digitate or subdigitate. 
as Spikelets. placed with the back of the 
fruit turned toward the rachis of 
the spikelike racemes, or pedi- 
cellate in panicles 
Fruit longacuminate : both glumes 
ng. 
Fruit por: loncuonmindeee at least 
one glume present. 
First glume typically wanting: 
spikelets plano-convex, 
sub-sessile in  spike-like 
eme 
First glume present: spikelets 
usually in panicles. 
Second glume inflated-sac- 
ina this and the sterile 
lemma much exceeding the 
stipitate fruit. 
SECON I actato. not inflated- 
Stem oody plants 
Bemis like. fruit with 
oe ft of down at th 
Stems P prune eous: no 
tuft dowa at the 
. apex of the fruit. 
Tribe v. ORYZEAE 
. Glumes minute: lemma often awned. 
Glumes wanting : lemma awnless. 
32. TRICHOLAENA. 
30. OPLISMENUS. 
31. ECHINOCHLOA. 
19. VALOTA. 
20. SYNTHERISMA. 
18. ANTHAENANTIA. 
1. LEPTOLOMA. 
22. ERIOCHLOA. 
23. BRACHIARIA. 
24. AXONOPUS. 
2b. REIMAROCHLOA. 
26. PASPALUM, 
20. SACCIOLEPIS. 
28. LASIACIS, 
21. PANICUM. 
39. bigz 
40. E 
