1200 BENGAL PLANTS. [ Andropogon. 
narrow. Spikes solitary, 2-nate, ae fascicled or panicled, 
sometimes (§ Cymbopogon) reduced to 3 spikelets ; rachis articu- 
late, more or less fragile; spikelets in alternate pairs, a sessile 
hermaphrodite and a pedicelled male or neuter, one or more lowest 
in the spike sometimes neuter and differing in form from the 
upper. Sessile spikelets 1-flowered ; callus long or short; glumes 
3 or 4; I. coriaceous or papery, 2-keeled, awnless; II. thinner, 
concave, keeled, rarely shortly awned; III. hyaline, neuter or 
absent; IV. hy stim awned, often telus to the dilated base of 
the awn, 2-sexual; palea small or 0; lodicules 2, cuneate ; stamens 
8, 2, or 1, usually 3; styles short or long; stigmas laterally ex- 
serted. Pedicelled spikelets usually smaller than sessile; glume 
IV. awnless. Grain free. 
*Internodes of the spike deeply cupped at the apex :—[p. 1 
rage spikelets of the lowest pairs differing from those caer them in 
and form; spikes 2-nate, each pair with a spathaceous bract 
. “Cynon — 
ints of nel and pedicels of upper spikelets copiously villous on 
ia sides and back ; hairs more or less concealing the sessile spikelets 
alee aoe 
— of spikes and pedicels of upper spikelets villous or ciliate 
he sides, veda glabrous or nearly so; hairs not concealing es 
ratty ae 
& rank cordate Schoenanthus. 
ee narrow, not cordat 
Glume I. areca ia or wih shallow ge rai or concave 
towards the base :-— 
Spathes less than 1 in. long Nardus. 
Spathes 1 in. long or longer Nardus var. grandis. 
meer AS ae warns concave below the middle, pee a boss 
t the base of the cavity arba. 
Sessile mires of all the: pairs alike in sex and form eae the 
spike; peduncles of spikes enclosed in spathiform leaf-sheaths but 
spike 
with no spathaceous bract mnt the 
Spikes solitary on the pedunc 
Pedicelled spikelets smaller ae the sessile (§ Sales nes 
ading 
— divaricate ; spathes spreading..............00006+ evifolius. 
Leaves and spathes erect ilis. 
Pedicclled. spikelets longer than the sessile (§ Diectomis) 
astigiatus. 
Spikes 2 or more on a common peduncle (§ Arthrolepis)......qpricus- 
