870 
FLORA OF ADtiN. 
convex, bisexual, the palea usually as long as and of the same texture 
as the glume. Lodicules 2, cuneate, Stamens 3. Styles distinct; 
stigmas laterally exserted near the tops of the spikelet. 
Grain free, but tightly enclosed by the hardened glume and palea, 
oblong, ellipsoid or lanceolate. 
Species between 200 and 250. 
Distribution — Mainly in the warm regions of the world. 
Inflorescence of spiciform or effuse panicles : | 
Panicles elongate . . . * - . . . 1. P. leucantlmm* 
Panicles broad, effuse : 
Lower involucral glume as long as the lower floral glume 
or nearly so . . . . . . . . 3. P. fcurgidum. 
Lower involucral glume shorter than the lower floral 
glume . . . . . . , . 4. P. antidotale. 
Panicles pauciradiate . . . . . . 5. P. leersioides. 
Inflorescence racemose, of simple spikes . . . . . 2. P. colonum. 
1. Panicuni leiieantlilim A Rich. Tent. FI. Abyss. II, 372 % 
Walp. Ann. Bot. Ill, 718 ; Steud. Syn. PI. Glum. I, 92. 
TricholsBna leucantha Hochst. in Schimp. Pl. Abyss, n. 1818. 
Description : — Stem erect, ramose, slender, 2 feet high ; leaves 
narrow, glaucous, convolute, glabrous, smooth ; ligule silky, short ; 
sheaths glabrous. 
Panicle elongate ; branches erect, Oexuose ; branchlets thickened at 
the ends, truncate, glabrous, smooth ; spikelets articulate at the base, 
deciduous, oblong, narrow, 2-flowered. Involucral glumes lanceolate, 
equal, acute, ciliate, covered with very long setose hairs. Male flower 
with 2 pales, linear ; pales of hermaphrodite flower coriaceous, glabrous, 
awnless, shining. 
Locality : — Gravelly slope of Shum Shum Range (Ellenbeck). We 
have not seen the specimen. 
Distribution \ — Yemen, Eritrea, Abyssinia. 
2. Panicum colonum Linn. §yst. ed, 10, 870 ; Jacq. Eclog. Gram, 
t. 32 ; Ehret. Ic. Sel. t, 3, f. 3 ; Beauv. Agrost. t. X, f. 6; Trin. Sp. 
Gram. Ic. t. 160; Steud. Syn. Gram. 46; Wall. Cat. n. 8685 ; Trim. 
Cat. Ceyl. PL 104 ; Duthie Grass. N. W. Ind. 3, et Indig. Fodd. 
Grass, t. 4, et Fodd. Grass. N. Ind. 4; Benth. FI. Hongk. 411, FI. 
Austral. Yll, 478; Boiss. FI. Or. Y, 435; Franch. & Sav. En. Pl. 
Jap. II, 160; Griseb. FI. Brit. W. Ind. 545 ; Hook. FL Brit. Ind. YII 
32; Cooke FL Bomb. Presid. II, 931. 
Panicum arabicum Nees ex Steud. Nom. ed. 2, II, 251, Syn. Gram. 
63. 
Panicum brizoides Linn. Mant. I, 184. 
