GRAMINE, 1165 
all sit aaah empty; upper usually awned or reduced 
to 
ikea in sega pairs or the lower solitary :— 
Sessile spikelets more than 2, usually many; inflores- 
cence usually slacidete sieved UA wcteveentees dropogon. 
Sessile spikelets 2 only; inflorescence very short 
Pseudanthistiria. 
Spikelets pete, es ee 4 lower sessile forming an invo- 
lucre roun 
Rachis hettienies se the involucrant spikelets 
Rachis articulate below the involucrant spikelets 
Iseilem 
+ Spikelets forming a spicate, moneecious inflorescence, male and 
never awned, and always very unlike :—{p. 
Fruiting spikelets densely crowded on a cylindric, spongy 
rachis, the grain exposed 
Fruiting spikelets lax ; rachis slender, the grain concealed :— 
Fruiting spikelet with glume I. transformed into a crustaceous, 
polished, nut-like envelope to the other glumes and the grain 
0. 
a spikelet enclosed in the stony, polished, ors i 
bra 
*Mature igihcdess breaking up, leaving the persistent or seu 
glumes on the pedicel, or if fa lling entire, not composed of two Bie 
morphous florets :—[p. 1162 
tHerbs ; blades rarely (Centotheca) transversely veined and not articu- 
late on the sheath :— p. 1167 
{Spikelets not inserted in notches or pits of a simple rachis :— 
[p. 1167 
§Spikelets panicled, or if spicate not secund :—{p. 1167] 
: © Spikelets 1-flowered ; rachilla not, or rarely, canna beyond 
the floret; awns when present twisted :—{p. 1166 
Glume III. rare in fruit and tightly clasping ee gr ; 
awns usuall 
umes all Se nous; awns if present simple :— 
x Spikelets laterally compressed :—{p. 1166] 
Glumes I. and II. awned, firm ............ Polypogon. 
Glumes I. and II. sins — le cekcaons -. — 
Pericarp of grain B56 BOCE.. ciss neice wins tis. 
Prsieazs of grain logS0.:- -tsisceescs Rigiaeesns . Sporobolus. 
4p 
