256 {RIANDRIA DIGYNIA. Andropogon, 
|. Root afew very slender, brown fibres, Culms in tufts, and 
yery ramous, filiform, erect, smooth, even the joints ; from six — 
to twelve inches high. Leaves minute, a few hairs nearthe ) 
base. © Spikes always exactly paired as in most species of 
Ischeemun, erect, flat on the inside, where they touch each 
other. Rachis winding, and clothed with long, silver-colour-_ 
ed hairs, length about an inch. Flowers in pairs, one sessile, a 
one pedicelled, both. hermaphrodite, and both awned. Caly- 
ces two-valved, one-flowered ; exterior valve in both lanceo- 
late, with the margins copiously ciliate. Corol two-valved ; 
valves transparent, and brown ; that (the inner) which gives 
support to the arista, bifid. Stamens three. Styles two. 
Stigmas long and plumose, | 
- 6. A. filiformis, R. ' : ; 
Filiform, annual, erect. Spikes paired. Flowers all ses- 
sile, solitary ; hermaphrodite, diandrous, with a corol of one 
ane which ends in a long awn. 
’ This is the most delicate species I have i met with ; “ap 
pears in small tufts, on pasture land near Calcutta, in the 
months of October, November, and December. ‘ 
_-- Culms numerous, filiform, smooth, erect, from nine to — 
twelve ‘inches high, Leaves small, slender, and smooth. 
Spikes two, terminal, filiform, scarcely two inches long. _ 
Flowers all hermaphrodite, solitary, sessile, no pedicelled — 
_ flower being found, no pubescence about the calyx, or rachis. 
alyx two-valved, one-flowered. Corol of one large, awned ie 
‘ealve.. Stamina two, one of the anthers larger. Germanaie: 
Stylestwo, : 
a eS a 
_ 7A, tristachyos. R. 
Spikes three, both flowers oe and both awn 
_ ed, Calyces lanceolate, and ciliate. 
A cliente, beautiful X species found on » newly i down 
