Scirpus. TntATfDRiA monogynia. 219 



Root fibrous. Culms erect, from one to three h^i Iiigli, naked 

 round, and ylender in proportion to the height, striated, otherwise 

 smooth. Leates none, except two sheaths embracing the base of 

 each cuhn. Spikes from three to five, lateral, sessile, oval, naked, 

 from four to six inches, below the apex of the culm, which is erect, 

 and like that below the spikes. Involucre none. Stamens three, 

 intermixed with bristles. Stigma two-cleft. Seed obcordate, com- 

 pressed, smooth, white. 



13. S.mucronatus. Linn. Sp. Fl.ed.Willd.i.SQS.VahLEnum.iu 

 256. 



Culms from six to twelve inches high, three-cornered. Spikes pe- 

 duncled and sessile below the apex. Seed black, scabrous, sub- 

 triansrular. 



A native of sandy ground. 



Hoot fibrous. — Cuhns erect, from six to twelve inches high, firm, 

 naked, three-sided, striated, with rounded angles, above the spikes 

 half round, with a groove on the flat side. Spikes lateral, sessile 

 and peduncled, naked, from six to twelve, oblong, many-tiowered. 

 Nectarial bristles of the germ wanting.— .Se^t? somewhat three-sid- 

 ed, black, with scabrous spots. 



14. S. triangulatus. R. 



Culms in tufts, erect, ^wo feet high, naked, acutely three-angled. 

 Spikes from eight to twelve, sessile just under the straight three- 

 winged apex. Germ embraced by six long, slender bristles, besides 

 the three-broad filaments. 



Native of Chittagong, where like most of the order, it delights in 

 low wet ground. 



15. S. supinus. Vahl. Enum. Pi. ii' 257- 



Culms in tufts, curved, thiee-cornered, generally naked- Spikes 

 several, under the grooved apex, sessile and peduncled. Involucre 

 one-leaved, besides the apex of the culm. Seed three-sided, traus- 

 -versely rugose on the back, black. 



S. lateralis. Lim> Sp. PI. ed. WHld. l 302. Retz- Obs^ iv. 12. 

 £ b 2 



