536 



Spec. Chab. Culms csespitose, filiform-bristly, farrowed and 

 angled, glabrous or sligMy scabrous ; leaves shorter ttan the culm, 

 filiform-capillaoeous, ctaimelled, externally farrowed, scabrous at 

 the margin : sheaths bearded on the mouth : umbel simple or 

 compound, depauperated: rays 3 — 5, very unequal, 1^3,-spiked: 

 spikes ovate-oblong, pedicelled, central ones sessile : involucre 

 2-leaved, variable in length: scales boat-shaped, broadly ovate, 

 obtuse, muticous, lower ones mucronulate : achenium roundish- 

 obovate, triangular, terminated by a depressed tubercle. 



Lower Bengal. £hasia hiUs. 



(10) I. GEAcms. (N. al. E.) 

 Idmt. Nees ab. Esenb. in Wight Contrib. p. 109. 



Spec. Chae. Spikelets oblong, angled, capitately twin or in 

 threes : capitules collected or simply aggregated into a compound or 

 decompound depressed and spreading imibel : scales trifarious, 

 ovate, deeply keeled, mucronate-acute, rufous-brown : caryopsis 

 obovate, 3-comered, transversely wrinkled, yellowish : leaflets of 

 the involucre and involucel ' subulate-cuspidate from an ovate 

 Bcariose base, shorter or longer than the umbel and umbeUet : culm 

 filiform, 3-comered, compressed: sheaths dehiscing at the apex, 

 villous : leaves bristly. 



Peninsula. 



(11) I. BELLiJLA. fStmdel.) 



Ident. Steudel 1. c. p. 318. 



Spec Chae. Culms and leaves bristly, dwarf, stiffish, smooth, 

 glabrous, reddish, fructiferous ones 2 — 3-times elongated : lowest 

 leaves springing at the base from a loose sheath : spike lateral, 

 solitary, terete-cylindric, obtuse, very densely imbricated on all 

 sides : scales somewhat triangular-ovate, hardish, sub-acute, a little 

 exceeding the oblong obtuse, blueish achenium. 



Bengal. 



GENTJ8 XII. riMBEISTTLIS. 



Trlandria. Monoerynia* Sex: Syst; 



Berim. Prom Mmhria a fringe, and Stylus the style, the style is 

 fringed. 



Gen. Chae. Spikes many-flowered : spikes imbricated on all 

 sides, scarcely any of the lower ones empty : bristles and small 

 calycine scales none : stamens three : style 2- seldom 3-cleft, 



