314 North American CijjieracecB, 
Vahl is correct or not, can hardly be determined from hh 
brief description, but we have no other Eleocharis that sa 
nearly agrees with it. Scirpus nanns, Spreng. syst,. 1. p. 20-5y 
(S. parvulus, licem, ^ Schulf. 2. p. 124), of which I possess- 
specimens from the author himself, is closely related to our 
plant, but differs in its terete culm and more obtuse carinate 
scales. It is, however, a true Eleocharis ; for the tubercle, 
though extremely minute, can be distinguished with an ordi- 
nary lens. 
The following species of Eleocharis are omitted for reasons given ai 
page 281. 
1. E. GEnicULATA, R. BrowH 1 — Scirjiiis gcnicidatus, Pursh, fi. I. 
p, 55, not of Vahl. 
This species, which is a native of Cayenne, Surinam, and Jamaica, is 
said by Pursh to inhabit the sea shore of Virginia and Carolina, but it 
was not known to Muhlenberg, Elliott or Baldwin, neither has it to my 
knowledge been found by any other American botanist, and Pursh may 
have mistaken for it, the E. equisetoides. There is no specimen of it 
among his plants, now incorporated in the Lambertian Herbarium. 
2. E. ovATA, iv. Broicnl — Sch-jjus ovatus, Pursh, not of Vahl. 
Pursh states that he found this species in Pennsylvania, but his speci- 
mens, named ,S. ovatus, in Lambert's Herb, seem to belong to Eleocharis 
intermedia. The S. ovaitcs of most other writers on N. American botany 
is Eleocharis ohtusa. 
3. E. ULAUCESCENS, Schult. viant, 2. p. 89. — Scirpus glauccscens, 
Willd. enum. hort. Berol, 1. p. 76; RcEra. & Schult, syst. 2. p. 126. 
Willdenow saj's he received his S. glaucesccns from N. America, but 
the description which he has given of it is so imperfect, that the plant 
can only be identified by consulting his herbarium. 
4. E. TORTiLis, Schult manl. 2. p. 92; Scirpus tortilis, Bosc, apud 
Link, jahrb. 3. p. 78. (fide Schult.) 
North America, Lhik. 
I have received from my e.stimable friend, B. D. Greene, Esq. of 
Boston, specimens of an Eleocharis in an immature state, collected by 
