„Andropogon, /— WRIANDRIA DIGYNIA; _ NN 
Jarge, awued valve.— Stamina two, one of the anthers larger.— 
Germ ovate,—Styles two. 
X 
4. A. tristachyos. R. 
` Spikes three, both flowers hermaphrodite, and both awned. Caly- 
ces lanceolate, ang ciliate, 
A delicate, beautiful species, found. on newly laid down padtat 
ground in the vicinity of Calcutta, and in foment in October, No- 
vember, and December. ^ à 
Annual, with numerous, nearly straight, erect, smooth; ibiitor, 
pithy culms, of from one to two feet in height.— Leaves taper from 
the base, most acute, about as long as the joints of the culms some 
few long soft hairs on thé inside near the base.—Sheaths. smooth, 
shorter than the joints.— Spikes two, rarely three, and I have not 
seen four, one sessile the other two a little more elevated on a com- | 
mon pedicel, expanding ; f. om two to three inches long. . Rachis 
jointed, winding, and hairy.— Flowers in pairs, one sessile, the other 
pedicelled, both hermaphrodite, and both. awned.—Calyces two- 
valved ; valcelets lanceolate, ciliate; backs smooth, and brown.— 
Corol of two, small, pellucid, brownish valves, the inner of each, 
ends in a long, brown arista, oad from the bifid apex of the 
valvelet, - l 
. 8. A, tridentatus. R: 
‘Spikes paired, hirsute, both flowers hermaphrodite, sui roed, 
. Calyces shaggy, exterior valves cuneate, truncate, tridentate, Corols 
fourvalved.. TS i 
24 delicate, rather tall species : a native of Coromandel. 
Culms straight.— Leaves small.— Spikes terminal, paired, sessile, 
i lanceolate, shaggy .— Flowers in pairs; one sessile, the other don 
Pedicelled, both hermaphrodite, and both awned. —Calyz, exterior 
Valves in both flowers cuneiform, with apices truncate, triden- 
tate, back striated ; middle part, as well as the margins from thence 
down and the base bearded with fulvous hairs ; inner vere loogerthan 
