570 



(11) P. coLONTTM. (Linn. J 



Ident. Linn. sp. 84. 



Syn. Oplismenus colonus, Humb. and Kunfh Nov. gen. I. 109. 



Engrm. Trin. Ic. xiv. t. 160. — Beauv. agr. t. x. fig. 6. 



Spec. Chae. Culms below resting on the ground and rooting, 

 above sub-ereot, branched, a little compressed, smooth: leaves 

 short, smooth, tapering from the base to a sharp point : spikes com- 

 pound, secund, 7 — 9, alternate, distant, spikelets in four series : 

 glumes scabrous, mucronate, unequal, 3-nerved. 



Common in cultivated fields. 



(12) P. DOTiDM. (Steud.J 



Ident.. Steudel 1. c. p. 46. 



Syn. Echinochloa dubia, Roem. and SehuU. I. 479 — Oplismenus 

 dubius, Kunth. 



Spec. Chae. Culms csespitoae, angular, flexuose, glabrous : leaves 

 linear, aCuminate-bristly and with the sheaths glabrous : panicles 

 Bub-spicate, compound, spikes alternate : spikelets muticous and the 

 awned, hispid, 3 — 5-nerved : rhachis furrowed and angular, fiexuose. 



. Coromandel. 



(13) P. OTSPiDATUM. (Roxb.J 



Ident. Eoxb. 1. c. p. 298. 



Spec. Chae. Csespitose, creeping, all glabrous : culms branched, 

 2-feet : leaves linear, ensiform, coloured at the edges : Hgula none : 

 racemes simple, alternate, spikelets twin and solitary, subulate- 

 mucronate, strigulose at the edges : seeds cuspidate. 



Bengal, flowering in April. 



(14) P. EoTLEAjnTM. (Nees.) 



Ident. Nees Ms. et in Eoyle herb. — Steudel 1. c. p. 47. 



Spec. Chae. Culm straight and with the linear acuminate leaves 

 pubescently hairy : raceme compound, straight linear-elongated, and 

 with the partial short appressed ones secund-fiowered, lower ones 

 sub-verticflled : common rhachis furrowed, spikelets twin, oblong, 

 scabrous, naked at the base : glumes acute, lower one 3-keeled 

 third part shorter than the florets, upper one 5-nerved, hispidulous, 

 longer than the male 2-valved slightly hermaphrodite, lanceolate, 

 roughish floret. 



Bengal. 



