Cyperus. TRIANDRIA MONOGYNIA. 199 
38. C. castaneus. Linn. Sp. Pl. ed. Willd. 1. 278. 
Culms from two to six inches high, length of the leaves. Umbels 
generally compound; length ofthe involucre. Scales with long recurv- 
ed points, monandrous. Seed rugose, obtusely triangular. 
A most beautiful delicate, small species ; delights in moist, san- 
dy, pasture land. : 
Koot übrous.—Culms erect, from two to six inches high, naked, 
three-sided, smooth.— Leaves sheathing, filiform, scarcely so long as 
the cuim.—Umbel terminal, one or one and half inches, simple, or 
compound, but m general composed of from one to five small pedun- 
cled umbellets ; and one or two sessile ones.— Spikelets linear, many- 
flowered.—Scales three-keeled, with a recurved point, green keel 
and chesnut- coloured sides. Aa: single, (at. least I have not 
found more. je two-cleft.—Sced obtusely three-sided, S: 
lugose. 
19.C. di formis Linn. Sp. Pl. ed. Willd. 1. 280. Vahl. Enum. 
£757. 
Culm from nine to eighteen inches high, angles sharp. — Umbels 
compound, umbellets globular, spikelets crowded. — Involucre from 
two to three-leaved. Scales imbricated. Seed obovate, three-sided. 
Gramen cyperoides, &c. Pluck. aln. 192. f. 3. 
Beng. Behooa. 
Grows equally i in either a dry, or wet sandy a. 
Root fibrous.—Cudms. two-thirds naked, erect, from nine to eigh- ` 
teen inches high, three-sided, smooth, angles sharp .— Leaves sheath- , 
iug, as long as the culm, keeled, smooth. —Umbel compound, small, 
being only about an inch and a half each way. Umbellets from two - 
to four, sub-sessile, and from two to four longer or shorter peduncled, - 
globular, composed of innumerable, very small, oval spikes.—In- 
tducre from two to three-leaved, very unequal, the longer being. half 
as long as the culm; and the third (when present) less than an; incl ` 
Tales imbricated, margins membranaceous,— Seed i 
A 
