jafi IS, 1928.3 Revision of the Flora of the Bombay Presidency 430 



or linear with frequently more or less cupular or auricled tips, those of the 

 lowest pair (raceme-base) often conspicuously swollen, oblong or barrel- 

 shaped and hard. Sessile spikelets (above the lowest) female or hermaphro- 

 dite, dorsally, rarely, laterally, compressed, awned (normally) ; callus very 

 short, obtuse, shortly bearded. Involucral glumes equal or subequal, more or 

 less chartaceous, lower almost flat or slightly depressed or narrowly grooved on 

 the back, with at least from the middle upwards sharply inflexed margins, 2- 

 keeled, upper more or less boat-shaped, keeled upwards, usually 1-nerved^ 

 Floral glumes ciliate or ciliolate (sometimes obscurely), lower entire, hyaline, 

 2-nerved, upper 2-fid or2-lobed, hyaline, rarely firmer and almost stipe-like 

 below the insertion of the awn ; column of awn, if any, smooth. Pale 0. 

 Lodicules 2, minute, glabrous. Stamens 3. Stigmas laterally exserted ; styles 

 terminal. Grain oblong in outline, subterete to plano-convex in cross-section -, 

 embryo about half the length of the grain. Pedicelled spikelets usually slightly 

 different in shape and size from the sessile, but never depressed or grooved on 

 the back. Involucral glumes muticous, lower chartaceous to sub-chartaceous 

 upper thinner. Lower floral glume hyaline, 2-nerved, upper 0, but usually a 

 male flower present. 



Species about 36, in the tropical, more rarely in the subtropical regions of the 

 Old World. 



Cooke mentions one Indigenous (Andropogon Jwarancusa, Jones) and one 

 cultivated species {Andropogon Schoenanthus-, Linn.) belonging to this genus. 

 We add two indigenous species and a cultivated one,: 



Key, mainly after Stapf : 



A, Blades long, hard, rough-edged throughout, filiform to linear; 

 lower involucral glume of sessile s pikelet flat or con-cave between the keels 



I. Raceme- joints villous all over, hairs long, 

 more or less concealing the sessile 

 spikelets ; awn usually a straight, very 

 short bristle 



1. Basal leaf-sheaths in dense tufts, tightly 



clasping, thickened below ; blades 

 more or less filiform and flexuous, 

 except when very short ; raceme- 

 fascicles more or less simple ... 1. C. Schcenanthus . 



2. Basal leaf-sheaths ultimately loosened 



and curled ; blades flat ; raceme- 

 fascicles compound ... ... 2. C Jwarancusa* 



II. Raceme-joints bearded along the sides, 

 but hairs not concealing the sessile 

 spikelets; fertile spikelets awnless ... 3. C. citratus. 



B, Blades flat, 5-30 mm. wide, rounded to 



subcordate and stem-clasping at the base, 



of a soft texture, with smooth edges ; at 



least in the lower part ; lower involucral 



glume of sessile spikelet with a narrow 



groove from the middle downwards 



corresponding to a keel inside 

 I. Blades 10-30 mm. wide (rarely under 10 

 mm.), somewhat fat, rich green, at 

 least above ; panicles 10-30 cm. long, 

 turning reddish when mature ... 4. V. Martini. 



II. Blades 2-6 mm. wide, thin, glaucous ; 

 panicles 10-20 cm. long, glaucous or 

 straw-colour when mature ... .., 5. C. ccesius. 



1. Cymbopogon Schoenanthus, Spreng. Pug. ii {1815), 15, non Schult.; Stapf 

 In Kew Bull. (1906), 303-313, 352-353, in Prain PL Trop. Afr. ix, 268.— C, 

 tirabicus, Nees ex Steud. Syn. PL Glum , i (1855), 387. — C. Arriani, Aitch. 

 Cat. Punj. PL (1869), 174.— C. Circinnatus, Hochst. ex Hack, in Monogr, 

 Androp. 599.— Andropogon Schoenanthus, Linn. Sp. PL ed. 1 (1753), 1046 

 {non Hackel et plurimorum auct.).—A. bicornis, Forsk. Fl. Aegypt.— Arab* 

 (1763), 173, non Linn.— A. laniger, Desf. Fl. Atl. ii (1800), 379; Boiss. Fl. 

 Or. v, 465; Balfour Bot. Socotra, 316; Hack, in Monogr. Androp. 598; 

 Benth. in Hook. Ic. PL t. 1871.— A. Olivieri, Boiss. Diagn. PL Or. ser. i, 



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