Cyperus. triandria monogynia. 187 



is smaller, and always ascends in a curved direction ; in that 

 the scales of the spike are acute, in this obtuse, in other res- 

 pects they are very much alike. At present I am inclined 

 to think C. mucronatus of Vahl and Rottboel may be refer- 

 red to this, consequently Willdenow's C. mucronatus. sp. pi. 

 1. 273. includes these two species. 



4. C. nudus. R. 



Culm from three to four feet high, round, naked, inwardly 

 intercepted. Leaves none ; umbel compound ; involucre 

 chaffy. Stigma three-cleft. Seed three-sided. 



A native of stagnating, or slowly running sweet water over 

 India. 



Root perennial, fibrous. Culms erect, round, naked, articu- 

 lated, smooth, from three to four feet high, above as thick as a 

 common large quill. Leaves no other than a rusty coloured 

 sheath or two embracing the base of each culm. Umbel ter- 

 minal, generally compound, though sometimes decompound. 

 Involucre several small, chaffy scales. Umbellets long, slen- 

 der, peduncled, bowing, composed of from eight to twelve 

 linear, sessile, rust-coloured spikes. Involucels like the invo- 

 1 ucres. Seed sub-linear, three-sided, smooth, light brown. 



5. C. semi-nudus. R. 



Culms from two to six feet high, round, tending to be an- 

 gular at the top, naked. Leaves none. Umbels decompound, 

 with an involucre half its height. Stirjma three-cleft; seed 

 three-sided. 



Beng. Gola-methee. 



Teling. Godoo twnga kooda. 



This species is with the former a native of wet places. 



Root perennial, creeping, fibrous. Culms erect, from two 

 to six feet high, round, smooth, naked, except at the base, 

 which is embraced by three or four sheaths. Leaves no other 

 than the sheaths just mentioned. Umbels generally decom- 

 pound, erect. Involucre three-leaved, equal, shorter than 



