PaiVCum. TRIANDRIA DI6TNIA. fSl 



ir.idivided for a sliort distance. Stigma p]umo?e. — Seed oblong, dark 

 brown, doited ; on the anterior side netir the base is an oblong ele- 

 vated mark. 



Obs. Dr. Rottler, of ^Madras, an excellent Botanist, obliged nne 

 Wi'di the only specimens of this rare grass which I have yet met 

 Mith, and had he not infoinied me that this was considered to be P. 

 diinidiatum 1 should have been iuciined to have taken it for an Is- 

 chae/num. 



Seel. -d. Spikes paired. 



10. P. conjugatum. U. 



Spikes conjugate, secund. Flozcers solitary, sessile, awnles?. Ca- 

 rol, with an accessary neuter valve. 



A slender, soft, villous, half creeping species ; a native of Coro- 

 niandel. It differs from P. dislachi/on in the nuuiber of the spikes 

 being constantly two, and the fiowers always solitary and sessile. 

 To these marks of distinction may be added that the valves of the 

 calyx are three-nerved, and the accessary one piarticularly large. 



1 1 . P. squarrosiim. Linn. Sp. PL ed. Willd. i. 345. Hetz. Obs. iv. 

 15. and \. t. \. 



Culms creeping, from ten to twenty inches long. Spikes paired, 

 horizontal, rachis articulate ; Jhwers in a fascicle on the upper end 

 of eacli joint of the rachis. 



Cenchrus murica!u3. Mant. 302. 



P. diinidiatum. Burm. Lid. 25. t. S.f. C. 



A native of dry sandy ground near the sea. 



CwZ/;2s branchy, creeping, with theirfiower-beari»igextremltiessuf% 

 erect; from ten to twenty inches long — Lc^res short, but rather broad, 

 and covered with soft hair ; sheath large, downy, involving most of 

 the crihns. — Spikes two, terminal, spreading, horizontal, or ascend- 

 ing like a pair of horns, secuud. Rachis composed of from lour 

 to eighty oblong joints, divided by a waved ridge ; on each side of 



K k 2 



