Cyperns. triandria monogywa. 199 



the height of the plant, generally composed of one sub-sessile 

 umbcllet,and three or four, on naked, smooth, filiform pedun- 

 cles, of different length, and these again composed of from 

 four to twelve, most slender, long, filiform, many-flowered 

 spikelets. Involucre three-leaved, the longest about the length 

 of the umbel, the other two shorter, all slender, and tapering 

 to most acute points. Scales membranaceous. Stamens three. 

 Style three-cleft. Seed three-sided. 



Obs. Its naked delicate form, small and compound umbel, 

 short slender leaves, and scanty involucre, immediately dis- 

 tinguish it from all the other Indian species I have yet met 

 with. 



26. C.tuberosus. Linn.sp.pl. ed.Wi lid. 1. 281. Rotlb. 

 gram. 28. t. l.f. 1. Vahl. ennm. pi. 2. 340. 



Root tuberous. Leaves linear, length of the culms. Um- 

 bels compound, or decompound. Involucre three-leaved, 

 longer than the umbel. Style three-cleft. Seed oblong, three- 

 sided. 



This seems to me to be only a luxuriant variety, if so much, 

 of C. rotnndus. It grows in the same places, the roots are tu- 

 berous, &c. in short, I can scarcely perceive any difference. 



27. C. tenuiflorus. Linn. sp. pi. ed. Willd. 1. 284. Rotlb. 

 gram. 30. t. 14./. 1. Vahl. ennm.pl. 2. 374. 



Culm from two to four feet high, sharp angled. Involu- 

 cre three or four-leaved, much longer than the decompound 

 umbel. Spikelets alternate. Scales obtuse. Seeds obcordnte, 

 three sided. 



Teling. Gelleba-twnga. 



Grows in standing sweet water. 



Root creeping, with ramous fibres. Culm erect, from four 

 to six feet high, naked, three-sided, smooth ; angles sharp. 

 Leaves mostly radical, shorter than the culm, deeply chan- 

 nelled, smooth. Umbel terminal, decompound, from four to 

 eight inches each way. All the umbellets peduncled, oblong, 



M4 



