442 North American Cyperacece. 
Hab. Near New Orleans, T. Drummond ! 
Obs. This plant greatly resembles the ordinary form of 
E. pygmcea, but the flowers are entirely destitute of bristles. 
E. PROLiFERA, p. 316. I have received specimens of this 
plant, with mature fruit, collected by Dr. Chapman in 
Middle Florida. It is a distinct species allied to E. micro- 
carpa. The spike is 4 — 6-flowered ; the nut triangular, with 
the sides convex ; the tubercle is broad, depressed, apiculate 
in the centre. The bristles are about 4 in number, and scarcely 
one-third the length of the nut. 
SciRPUS PLANiFOLius, p. 316. Ogdcnsburgh, St. Law- 
rence County, New-York, Dr. Craive ! 
(3. hrevifolius. Leaves much shorter than the culm, very 
narrow, canaliculate, triquetrous towards the summit ; scales 
shorter and scarcely acuminate. 
Culm a foot long, very slender. Leaves scarcely half a line 
wide, 1 — 3 inches long, almost subulate. Spike broadly ovate. 
Hab. Ogdensburgh, N. York, Dr. Cratve. ! 
SciRPUS LENTicuLARis, p. 328. S. sylvatlcusy Bong,! 
veg. Sitcha, in mem. acad. St. Petersb. 6 ser, 2. p. 169. The 
specimen is young, but it agrees very well with Dr. Scou- 
ler's plant. 
S. lineatus, p. 332. District of Columbia, Dr. Crandall! 
Rhynchospora alba, p. 366. The Texan specimens of 
Mr. Drummond, (Coll. II. no. 281,) are immature, and though 
greatly resembling this species, may prove to be distinct; since 
the hypogynous bristles are very numerous. I counted 19 in 
some florets, and Mr. Arnott informs me that he has seen as 
many as 24. The character of Rhynchospora must therefore 
be slightly altered, so as to include this plant. 
