302 North American Cypcraccat. 
7. Eleocharis intermedia, Schultcs. 
Culms setaceous, diffuse, compressed, angular and sulcata ;■ 
spike lanceolate-ovate, 8 — 10-flowered ; scales ovate-lanceo- 
late, somewhat acute ; bristles longer than the nut; style 3-cleft; 
nut obovate, compressed, with an obtuse ridge in front, attenu- 
ated at the base, longitudinally striated, dull ; tubercle distinct* 
rostrate, slender. 
Eleocharis intennedia, Schult. mant. 2. p. 91. 
Scirpus intennedius, MuhL! gram. p. 31; Torr.! fi. 1. p. 46. 
Culms cespitose, about a span long, mostly dift'use or prostrate, of a 
firm wiry texture, conspicuousl}'' sulcata and somewhat angular. Sheaths 
cuspidate at the summit. Sjpikc 2\ lines long, rather acute. Scales 
membranaceous, not scarious on the margin; midrib narrow, green; the 
sides reddish brown. Bristles 6, strong, whitish, retrorsely hispid, a 
little overtopping the tubercle. Stamens 3. Nut of a light brown when 
mature, very finely striate longitudinally, remarkably attenuated at the 
base. Tubercle quite free around the base, very slender and acute. 
Hab. Wet places, particularly in shallow running water.- 
New Jersey ! ; Pennsylvania, Muhlenberg! ; Oneida county, 
INew York, Dr. Gray! and Jefferson county, in the same 
state. Dr. Craice! ; Georgia, Dr. Baldicin! 
Obs. a well characterized species, easily distinguished 
from the three preceding by the slender wiry sulcate culms, the 
nut attenuated at the base, and the trifid style^ In the Muh- 
lenbergian herbarium the specimens are marked " Scirj)us 
acicularis, Smith, Herb. Linn.,'''' but I can see no resemblance 
between our plant and that species. 
S. Eleocharis obtusa, Schultcs. 
Culm terete, or slightly compressed, spongy; spike globose- 
ovate, or globose-oblong, crowded ; scales very obtuse ; bristles 
longer than the nut; style 3-cleft; nut obovate, lenticular, 
margined, smooth and shining ; tubercle much dilated at the 
base, subacute, compressed. 
