FLORA OF ADEN. 
859 
1. Andropogon Linn. 
Perennial or annual grasses of very varied habit. Leaves usually 
narrow. Spikelets similar or heteromorphous, 2-nate (one sessile, the 
other pedicellate), on the fragile rhachis of solitary, 2-nate, digitate 
fasciculate or paniculate racemes. Pedicellate spikelets usually smaller 
than the sessile. Sessile spikelets 1 -flowered ; callus long or short. 
Glumes 3 or 4; lower involucral glume coriaceous or chartaceous, 
2-keeled, muticous; upper involucral glume usually thinner, with a 
median keel, rarely awned; lower floral glume hyaline or 0, neuter; 
upper floral glume hyaline, usually awned, often reduced to the dilated 
base of the awn, 2-sexual ; palea various or 0. Lodicules 2, cuneate. 
Stamens 3-1. Stigmas laterally exserted. Grain various. 
Species more than 200. 
Distribution : — Warm parts of the world. 
Flowers in solitary racemes . . . . 1. A. foveolatus. 
Flowers in panicles : 
Leaves j unciform 2. A. Twarancusa. 
Leaves linear-lanceolate or linear . . . 3. A. sorghum. 
I. Andropogon foveolatus Del. Descript, de PEgypte (1812), 
p. 160; Kunth Enum. Pi. 1,490 ; Steud. Syn. PI. Glum. I, 366; 
Boiss. FI. Or. V, 462; Hook. FI. Brit. Ind. VII, 168; Hack, in DC. 
Monogr. Phan. VI, 402; Prain Beng. PL p. 1201 ; Cooke FI. Bomb. 
Pres. II, 977. 
Andropogon strictus Roxb. FI. Ind. I, 260. 
Andropogon orthos R. et Schult. Mant. II, 455. 
Andropogon monostachyus Spreng. Pugill. Pl. Nov. II, 9. 
Description : — Stems 1-2 feet long, densely tufted, usually decum- 
bent at the base, then geniculately ascending, very slender, glabrous ; 
nodes bearded. Leaves 3-6 by -gVjV linear, puberulous beneath; 
sheaths shorter than the internodes, scabrous or glabrous, the basal 
sheaths silky-villous ; ligule short, truncate, hyaline, ciliate. 
Racemes 1-1 \ inches long, solitary; peduncles capillary, erect, 
usually far exserted beyond the slender spathe ; joints and pedicels 
