Cyperus. — TRIANDRIÀ MONOGYNIA. 191 
= Spikes sessile, five or six, forming a small head on one side 
of ihe culm about au inch and half below its apex. IJnvolucre, a 
minute, subulate leaflet immediately under the spikes, aud of tbe 
same length with them.— Scales of the spikes numerous, ovate-ob- 
long, white, smooth and rather obtuse.— S/amina three.—Stigma 
bifid.— Seed oval, flat on the inside, and convex on the exterior, lead- 
colour or grey, and smooth. 
Ubs. ‘ibis differs from the plant sich I consider to be C. mus 
cronatus of Retz. fase: 5. p. 10. in being perfectly erect and destitute. 
of folage; whereas that species has leavés, is smaller, and al ways 
ascends m a curved direction; in that the scales of the spike are acute, 
iu this obtuse, in other respects they are very much alike. At pres 
sent I am inclined to think C. mucronatus of Vahl. and Rottboel ı may 
be referred to this, consequentiy Willdenow's C. mucronatus. 8p 
* 
Pi. 1. 273. includes these two species. i ae 
4. C. nudas. R 
Culm from three to four feet high, round, naked, inwardly inter- 
cepted. Leaves none; Umbel compound ; involucre a see 
three-cleft. Seed three-sided. T 
A native of stagnating, or slowly running sweet water over India, 
Root perennial, fibrous.—Culms erect, round, naked, articulated, 
smooth, from three to fcur 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.—Umbed terminal, generally com- 
Pound, though sometimes decompound.—Involucre several small 
chaffy scales.—Umbellets long, slender, peduncled, bowing, com- on 
Posed of from eight to twelve linear, sessile, rust-coloured spikes— 
Incolucels like the involueres.— Seed sub-linear, three- — sm 10 
light brown. e 
ES c. semi-nudus. R. s a 
"ums from two to six feet high, pou en din ; 
