394 
FLORA OF ADEN. 
produced ; lowest floret hermaphrodite, the second male or barren 
(rarely fertile), the following if present barren, often minute. 
Involucral glumes 2, persistent, narrow, keeled, membranous, 1-nerved, 
acute, mucronate or the upper awned. Hermaphrodite floret : floral 
glume narrow or broad, 3-nerved, acute or obtuse, minutely 2-toothed, 
usually awned from below the apex, often ciliate ; palea almost equalling 
the glume, 2-keeled. Lodicules 2, minute. Stamens 3. Ovary glabrous ; 
styles distinct, short ; stigmas laterally exserted. Male floret : glume 
and palea as in the hermaphrodite flower, but smaller and glabrous. 
Rudimentary florets glabrous, awned or awnless, small to minute, 
usually without a trace of a pale. 
Species between 40 and 50. 
Distribution Tropical and subtropical regions of both hemispheres. 
1. ciiloris villosa Pers. Syn. I, 87 ; Kunth Enum. PL I, 267, Suppl. ‘ 
217, t. 16, f. 3; Jaub. & Spach 111. PL Or. IV, 40, t. 327 ; Coss. 
& Dur. FL Alger. 87 ; Steud. Syn. Pl. Glum. I, 204 ; Aitchis. Cat. 
Panj. PL 167 ; Schweinf. Beitr. FL Aethiop. 298 ; Asch^rs. & 
Schweinf. 111. FL d’Eg. 170; Hook. FL Brit. Ind. VII, 291; Cooke 
FI. Bomb. Pres. II, 1034. 
Chloris tetrapogon Beauv. Agrost. 158. 
Tetrapogon villosus Desf. FL Atlant. II, 388, t. 255 ; Anders. 
Journ. Linn. Soc. V, Suppl. p. 40 ; Trio. Fund. Agrost. 760 ; Boiss. 
FL Or. V, 555 ; Duthie Grass. N. W. Ind. 33 ; Fodd. Grass. N. Ind. 
55, t. 68; Krause in Engl. Bot. Jahrb. XXXV, 24; Blatter in Journ. 
Bomb. Nat. Hist. Soc. XVII, 920. 
Description'. — -Perennial, stout; stems 6-1 Q inches long from a 
densely tufted stout woody base, clothed with equitant leaf-sheaths. 
Leaves 1-3 by t Vjo inch, linear, acute, flat, convolute or twisted, 
rigid ; ligule obscure. 
Spikes 1-3, erect, pale-vellow, li-2£ by inch. Spikelets J inch 
long, obconic, with 4 unequal awns. Glumes 6 ; lower involucral 
glume | inch long (including a short awn), oblong-lanceolate, hyaline; 
upper involucral glume \ inch long, oblong, hyaline, 2-toothed at the 
tip and shortly awned ; glume of the hermaphrodite floret i inch long, 
broadly ovate or suborbicular, concave, with an awn J inch long or 
more, and broad hyaline margins bounded by the lateral nerves, hirsute 
all over with long silky hairs which are much longer than the glume ; 
the palea elliptic-obovate with ciliate margins, hyaline ; the 4th glume 
barren, about \ as long, also hirsute, the 5th small, cuneate, the 6th 
reduced to an awn. 
