GRA.MTNE j35. 
447 
* SORGHUM, Pers. 
Of the genus Sorghum. Pers., which includes the Millets commonly 
cultivated in the two warmer zones and differs from Andropogon mainly 
by its larger grains and the more rigid texture of its empty glumes, 
two species are planted and casually subspontaneous. 
* S. saccharatum, Pers. (S. caffrorum, Beauv.) Leaves firm, gla- 
brous, 1-3 inches broad ; panicle dense, \-l foot long, with very silky 
branches ; outer glume of the hermaphrodite spikelet obovate-oblong, 
£ in. long by half as broad ; grain subglobose, the size of a small 
pea. 
* S. halepense , Pers., with narrower leaves, a laxer panicle, oblanceo- 
late glumes and smaller grains. 
11. ISCHiEMUM, Linn. 
Spikelets in pairs, arranged in simple or panicled spikes, oue pedi- 
cellate and imperfect, the other sessile, with 2 flowers, the upper flower 
hermaphrodite, with an awned flowering glume, the other male or 
neuter, but furnished with both flower-glume and pale. Empty 
glumes coriaceous, awnless. Flowering glume and pale smaller and 
membranous. Stamens 3. Hypogynous scales present. Styles pro- 
duced; stigmas protruded from the top of the flower. Grain small, 
free. — Grasses with the habit of Andropogon , from which they only 
differ by possessing a pale in the imperfect flower. Distrib. Tropics 
of the Old World. Species 30. 
1. I. barbatum, Betz. ; Kunth , Enum. i. 513. Perennial, tufted. 
Stems slender, erect, glabrous, 1-2 feet high. Upper sheaths 2-3 in. 
long, hairy at the edge and throat; blade linear-acuminate, 4-6 in. 
long, i-f in. broad, glabrous or finely pilose on the face. Spikes 2-4, 
crowded in a digitate panicle, 2-3 in. long ; rachis densely clothed with 
conspicuous white hairs ; spikelets £ in. long, oblong-lanceolate, 
acute. Outer empty glume with 7-9 prominent ribs on the back, 
glabrous. Awn purplish, twisted, J in. long. Meoschium barbatum, 
Beauv. ; Bojer , ELort. Maur. 376. 
Mauritius and Seychelles, in cultivated ground, not common. Also Tropical 
Asia. 
12. ANTHISTIRIA, Linn. 
Spikelets in clusters of 7, arranged in an ample panicle and each 
bracteated by a keeled lanceolate leaf, 4 sessile, similar, neuter, sur- 
rounding the other three, of which two are imperfect and pedicellate, 
and only one perfect and sessile. Empty glumes coriaceous, con- 
volute, muticous. Flowering glume of the perfect flower furnished 
with a long scabrous awn.. Pale membranous, muticous. Stamens 3, 
exserted. Hypogynous scales present. Styles elongated ; stigmas 
plumose. Grain free, cylindrical. — Tall annual grasses, with the habit of 
