918 CXLTII. GRAMlNEJE. 



palea \ in. long, oblong, obtuse ; upper floral glume as long as the 

 lower, ovate, obtuse. Anthers ^i in. long. Styles free almost to the 

 base. Grain yV by -^ in., orbicular-oblong, compressed, smooth, shining, 

 pale brown. Fl. B. I. v. 7, p. 89 ; G-rah. Cat. p. 234 ; Dalz. & Gibs, 

 p. 294; Woodr. in Journ. Bomb. Nat. v. 13 (1901) p. 435. 



Gujarat : Ahmedabad, Cooke ! ; Morvi (Kathiawar), Beck ex Woodrow. Sind 

 Karachi, Woodrow, Jemadar ka Landa near Karachi, Stocks I — Pistrib. India 

 (Panjiib,'Eajpiitana, W. Peninsula) ; Beluchisfan, Arabia, Africa. 



2. Cenchrus catharticus, Delile, Cat. Uort. Monsp. (1838) ; Lin- 

 »i(?a, V. 13 (1839), i/ifi. p. 103. Quite glabrous ; stems tufted, genicu- 

 lately ascending, branched from the base, leafy. Leaves 1-5 by ^—j \"-' 

 linear-lanceolate, finely acuminate ; sheaths glabrous ; ligule a hairy 

 ring. Eacemes 1-6 in. long, usually more or less enclosed in the upper- 

 most leaf-sheaths ; rhachis angular, glabrous, flexuous ; involucels with 

 a turbinate base ; bristles hard, subulate, sharply pungent, the outer- 

 most short, glabrous or nearly so, spreading or reflexed, the inner ciliate 

 at the base, subulate, suberect or squarrosely spreading, dorsally grooved, 

 reaching S in. long. Spikelets shorter than the inner bristles. Glumes 

 4 ; lower invol.-glume ovate-lanceolate, acute, hyaline, -^-^ in. long ; 

 upper invol.-glume rather more than \ in. long, 5-nerved, hyaline ; 

 lower floral glume ovate, acuminate, as long as the upper invol.-glume, 

 6-nerved, paleate, hyaline, the palea \ in. long, narrowly lanceolate, 

 acute, hyaline ; upper floral glume as long as the lower one, cuspidately 

 acuminate, 5-nerved, membranous ; palea ovate, acuminate, membranous, 

 as long as the glume. Grain -^ in. long, ovoid-oblong, compressed, pale, 

 rugulose. Fl. B. I. v. 7, p. 90; Watt, Diet. Econ. Prod. v. 2, p. 246. 



Gujarat: Perim Island, at the mouth of the Narbada river, i?«o;7! — Distrib, 

 India (Panjdb, W, Peninsula) ; Arabia, Tropical Africa. 



4. SETARIA, Beauv. 



Annual (rarely perennial) grasses of various habit ; nodes of stem 

 glabrous or hairy ; ligules a ridge of hairs. Spikelets subsessile in 

 contracted, cylindric or pyramidal terminal panicles, articulate on a 

 very short pedicel, subtended by 1 to many persistent scabrid or barbed 

 bristles (modified brauchlets) which often form a one-sided involucel, 

 but are sometimes present and absent in the same inflorescence. 

 Glumes 4 ; lower invol.-glume usually much the smallest, 3-5-nervcd, 

 membranous ; upper invol.-glume 5-7-nerved ; lower floral glume more 

 or less exceeding and resembling the upper invol.-glume, usually 

 paleate; upper floral glume coriaceous or crustaceous, 5-nerved, paleate, 

 the palea about equalling the glume. Lodicules 2, broadly cuneate. 

 Stamens 3. Styles distinct ; stigmas laternlly exserted. Grain tightly 

 enclosed by the hardened glume and palea, oblong or ellipsoid. — 

 DisTRiB. Tropical and temperate ; species about 40. 



Leaves plicate. 



Perennial ; stems reacliing 8 ft. long ; leaves up to 24 in. 



lon<' ; panicle 1-2 ft. long, with a scabrid rhachis 1. S. plicata. 



Annual'; stem reaching 2 ft. liigl) ; leaves up to 8 in. long; 



panicle 2-6 in. long, with a liairy rliachis 2. S. rhachitricha. 



Leaves flat not jilicate. 



Bristles of involucel willi spreading or erect teeth. 



Inflorescence a cylindric spike-liite raceme; bristles of 



involucel ()- 12; spikelcls l in. long 3. S. c/lauca. 



