Prats LXXIII. 
(A) ANDROPOGON opistacuyos, Linn.; (B) A. Grytivs, Linn. ; 
(C) A. nirtum, Linn.; (D) A. puBEscens, Vis.; (E) A. Iscum- 
muM, Linn. 
Natural Order GRAMINE®. 
Gun. Cuar.—Spikes either solitary or united or digitate or disposed 
in a simple or compound panicle. Spikelets . . . in pairs (or, rarely, 
the terminal ones in threes), one pedicellate and male (in the European 
species), or female, neuter or abortive, the other sessile, 2-flowered, 
both or only one of the flowers being two-valved, the lower flower 
neuter or male (neuter, of one flowering glume only in the European 
species), the wpper hermaphrodite or female. Outer glumes 2, becoming 
coriaceous, without or rarely with awns. Flowering glumes hyaline, the 
lower awned or not. Stamens 3. Ovary glabrous. Styles 2, terminal. 
Stigmas feathery. Lodicules 2, truncate. Grain glabrous, enfolded in 
the flowering outer glumes. Steudel, Syn. Glum. p. 363. 
(A.) Spec. Coar.—Spikelets arranged in pairs, forming two ter- 
minal spikes, glabrous. Sessile spikelets 2-flowered ; lower outer glume 
many-nerved, bifid above, coriaceous, glabrous, having 4 membranous 
edges, upper outer glumes membranous, 3-nerved, having an awn in the 
short notch at the apex rather longer than itself; flowering glume of 
aborted flower membranous, exaristate (Fig. A 3) ; lower flowering glume 
of hermaphrodite flower ovate-acuminate, deeply bifid, with an awn four 
to six times as long as itself (the wpper flowering glume has been want- 
ing in all the specimens which I have HEE lodicules 2, fleshy, sub- 
triangular. Culms unbranched. 
Andropogon distachyos, Linn. Sp. Plant. p. 1481; Gren. et Godr. FI. 
de Fr. ii. 467; Woods, Tour. Fl. p. 395. 
(B.) Spzc. Cuar.—Spikelets 3, terminal, two pedicellate and male, 
one sessile, female (in specimens, usually said to be hermaphrodite) ; 
below these three there is often a pair of spikelets, one sessile and 
female, the other, pedicellate and male. Sessile spikelet 2-flowered, 
lower outer glume exaristate, coriaceous, the two prominent lateral 
nerves covered with short spines, upper outer glume awned, awn rather 
longer than itself, slightly spiny along dorsal nerve ; flowering glume of 
aborted flower (B 4) pubescent, involute, exaristate; lower flowering 
glume of female flower linear, tapering into a long awn; upper flowering 
glume of female flower membranous, exaristate ; lodicules 2, fleshy, sub- 
triangular. Culm bearing several whorls of filiform flower-branches. 
