•Chhris.'] Graminecz. 275 



1. C. incompleta, Roth, Nov. Sp. 60 (182 1). 



C. digitata, Steud. Syn. Gram. p. 207. Thw. Enum. 371. C. P. 939. 

 Fl. B. Ind. vii. 290. Duthie, Fodd. Grass. N. India, t. 65 (C. Roxburghii). 



Perennial ; stem 2-3 ft., erect from a short rootstock, 

 slender or rather stout, smooth, ending in a very long, slender, 

 naked ped.; 1. 6-12 by \-\ in., narrowed into very long points, 

 flat, nearly or quite smooth above, beneath and margins 

 scaberulous, base contracted, sheaths long, smooth, lower 

 open, mouth auricled, ligule o, or of a few hairs; spikes 4-6, 

 whorled, 4-9 in. long, very slender, flexuous, rhachis filiform, 

 scabrid; spikelets about \ in. long, imbricating, erect, closely 

 appressed, rhachilla capillary, as long as the fig. glume or 

 longer, scaberulous, slightly swollen about the middle; glumes 

 I and II very unequal, midrib very stout, keels smooth, I very 

 small, ovate, acuminate, II as long as III, lanceolate, acumi- 

 nate, narrowed into a short, erect awn, III oblong, smooth, 

 3-veined, tip acute or 2-toothed, awned, awn \—\ in., capillary, 

 palea as long as the glume, acuminate, keels nearly smooth ; 

 grain nearly as long as the glume, linear-oblong, compressed, 

 concavo-convex, dark brown. 



Hot drier parts of the Island. Spikelets green or coloured. 

 Plains of India, Burma, Andaman Islds., China. 



2. C. barbata, Sw. Fl. I?id. Occ. i. 200 (1797). Ittayura tana, 6". 

 Thw. Enum. 371. Moon, Cat. 72. C. P. 954. 



Fl. B. Ind. vii. 292. Jacq. Eclog. Gram. t. 8. Trin. Sp. Gram. Ic. 

 t. 306. Rheede, Hort. Mai. xii. t. 51. 



Perennial; stems tufted, with strong root-fibres, rather 

 stout, 2-3 ft., ascending from a geniculate base, branching 

 upwards, leafy, quite smooth, lower internodes 2-3 in., as 

 thick as a crow-quill, shining, upper very long, slender, nodes 

 often bearing equitant tufts of 1. ; 1. 6-18 in., flat or complicate, 

 narrowly linear, finely acuminate, nearly smooth, base con- 

 tracted, sheaths smooth, lower open, upper closed, ligule 

 obscure; spikes about 12, sessile, crowded in a truncate 

 fascicle, rhachis very slender, flexuous, minutely scaberulous, 

 base tomentose; spikelets densely imbricate, about T V in. long 

 exclusive of the awns, rhachilla rather stout, shorter than the 

 fig. glume, bearing two small, turgid, obcordate, awned, im- 

 perfect glumes ; glumes I and II unequal, acuminate, III tV in- 

 long, nearly orbicular, margins above the middle hirsutely 

 bearded, as is a small dorsal area on each side of the midrib, 

 awn \-\ in., rufous. 



Common, especially near the sea, in the hotter parts of the Island. 

 Spikes rufous. 



All tropical countries. 



A very variable grass. Continental Indian specimens have often 



