FlOUA OF ADEN . 
389 
Panicle spike-like, often interrupted below ; branches (spikes) more 
or less spreading, irregularly approximate or spirally arranged on a stiff 
axis, persistent ; spikelets on the lower side of, and often at right angles 
to the rhachis, closely packed, light straw-coloured or tinged with brown 
or purple, often very many-flowered. Spikelets linear, strongly laterally 
compressed, closely imbricate, alternate-sessile or subsessile on and 
falling entire from the slender rhachis of secund more or less distinctly 
2 -ranked spikes which are crowded into long narrow spike-like panicles ; 
rhachilla tough. Florets numerous, hermaphrodite, rather loose. 
Glumes very unequal, membranous, 1 -nerved, keeled. Valves ovate, 
acute or subacute, entire, pmticous, rigidly membranous, 3-nerved, 
acutely keeled, glabrous, .side-nerves evanescent upwards. Pale^e slightly 
shorter than the valy es, 2-keele<L Lodicules 2, rather large, asym- 
metric, hyaline, nerved at the base. Stamens 3. Ovary glabrous ; 
styles distinct, slender ; stigmas plumose, laterally exserted, 
Grain loosely enclosed by the scarcely altered valve and palea, 
obliquely ovoid, obtusely triquetrous ; pericarp thin, adnate to the seed • 
embryo about J the length of the grain , hilum small, basal, puncti- 
form. 
Species 1. 
Distribution ;r- Syria, Mesopotamia, from Egypt southwards to 
East Tropical Africa and eastwards to India (from Peshawar and Sind 
to Burma and southward in hot and dry places) . 
1, Desmostachya bipinnata Stapf. in This.-Dyer FI. Cap. VII, 632. 
Eragrostis evnosuroiaes Beauv. Agrost, 71 (1812); Steud. Syn. 
Gram. 264; Wight Gat. n. 1774, 1774b. ; Trim in Mem. Acad. 
Petersb. ser. 6, I .(1831) 415 : ; Dalz. & Gibs. Bomb. FI. 298 ; Aitchis. 
Cat. Panj, PL 16.9 ; Duthie Grass. N. W. Ind. 37, Fodd. Grass. N. 
Ind. 62, t. 40 ; Boiss. FI. Or. V, 583; Lisboa in Jourm Bomb. Nat. 
Hist. Soc. VII (1893) 387 ; Stapf in Hook. FI. Brit. Ind. VII, 
324; Woodr. in Journ. Bomb. Nat. Hist. Soc. XIII (1.901) 441; frain 
Beng. PL 1221 ; Watt. Diet. Econ. Prodr. Ill, 253 ; Cooke Fl. Bomb, 
Pres. II, 1029 ; Durand & Barratte FL Libyan Prodr. ,(191,0) 265. 
Poa cynosuroides Retz. Obs. IV, 20 ; Roxb. Fl. Ind. I, 333; Del. 
Fl. Aegypt. 159, t. 10 ; ©rah. Cat. Bomb. PL 236 ; Kunth Enum. Pl. 
1, 227. 
Leptochloa bipinnata Hochst. in Flora XXXVIII (1855), 42.2. 
Briza bipinnata Linn. Syst iNat. X, 875. 
Cynosurus durus Forsk FL Aegypt.-Arab. 21. 
Dactylis interrupta Herb. Rottl. (ex Stapf. in FL Brit. Ind.)» 
