Cyperus. TRIANDRIA MONOGYNIA. $03 
‘slender leaves, and scanty involucre, immediately distinguish i it from 
all the other Indian species I have yet met with. 
26. C. tuberosus. Linn. Sp. Pl. ed. Willa. 1. 281. Rottb. gram. 
|. 8. t. 7. J. 1. Vahl. Enum, Pl. 9. 340. 
Root tuberous. Leaves imear, length of the culms. iei com- 
pound, or decompound. bid three-leaved, longer than the um- 
bel. Style three-cleft. Seed oblong, three-sided, 
This seems to me to be only a luxuriant variety, if so much, of 
C. rotundus. It grows in the same places, the roots are tuberous, 
&c. in cahit I can scarcely perceive any difference. 
27. C. tenuiflorus. Linn. Sp. Pl. ed. Willd. 1. 284. Both. - gram. 
80. t. 14. f 1. Vahl. Enum. Pl. 9. 374. 
__ Culm from two to four feet high, sharp angled. Involucre three or 
four-leaved, much longer than the decompound umbel. Spikelets 
alternate. Scales obtuse; seeds obcordate, three-sided. 
Teling. Gelleba-tunga. 
Ei in standing sweet water. 
Root creeping, with ramous fibres.— Culm erect: froin four to six 
feet high, naked, three-sided, smooth ; angles sharp.— Leaves most- 
ly radical, shorter than the -culm, deeply channelled, smooth — 
Unbel terminal, decompound, from four to eight inches each way. 
—All the umbellets peduncled, oblong, spreading, compased of 
alternate, sessile, lanceolate, from twenty to thirty-flowered spikes. 
ey three or four-leaved, very unequal, the largesi being 
from one to two feet long, and the shortest about one or two in- 
ches.— Scales obtuse, apex often emarginate and membranaceous. 
—Seeds. CODE obovate. ? 
28. C. strictus. R. 
Culms about twelve inches high, stiff and straight, iboli than the . 
leaves; angles sharp. Umbel decompound, straight, flowers aao- 
drous, Seeds obovate, compressed, without angles, e 
Delights in a moist uncultivated soil. 
Z2 
