7 
296° TRIANDRIA MONOGYNIA, Scirpus. 
35. S. strictus. R. 
Culms straight, from twelve to eighteen inches high, cu-" 
lumnar. Umbel compound. Involucres chatty ; scales obtuse, 
diandrous and roundish, compressed. 
Grows on a moderately dry, hard, barren, sandy soil. 
- Root fibrous, Culms straight, naked, rigid, from twelve to 
eighteen inches high, round, very smooth, Leaves radical, 
short; rigid, but smooth, Umbel terminal, sometimes decom- 
pound, contracted, seldom more than two inches long, and one 
broad, Jnvolucre from two to four, small, chaffy, tapering 
sheaths. Spikes ovate, small, many-flowered, Scales with a. 
broad, white, membranaceous border, Stamens two, Stigma 
two-cleft. Seed much compressed, obcordate, dotted with 
brown. 
36, S. brevifolius, : 
Culms erect, from six to eight inches high, semi-culugainta; 
Umbel decompound; involucels chaffy ; scales cuspidate, 
monandrous. Stigma bifid. Seeds obcordate, striated, 
Is found generally on low sandy pasture ground, 
Root fibrous. Culms erect, mostly naked, from six to. | 
eight inches high, flat on one side and rounded on the other. 
Leaves sheathing, short. Uimbel terminal, decompound. 
FInvolucre from two to three-leaved, shorter than the umbel. ' 
Spikes small, oblong ; while young sessile, but when old ap- 
pearing peduncled, the scales and seeds gradually dropping | 
off and leaving the rachis naked. Scales keeled and_ ointed. | 
Stamen single. Style broad, enlarged at the base; above, 
the margins are hairy. Stigma two-cleft. Seeds obcordate, — 
convex on the outside, flat on the inner, white, striated. oe 
Obs. The single stamen and striated seed are the best’ 
specific marks. It much resembles Rottboel’s figure of Si. 
dichotomus, but that species is described by Vahl as having 
three stamina: (see Fimbristylis Srinenas enum, i, Pe aoe 
aie | Bese Lie ses eter y at a ae 
