302 North American Cyi)eracc<Si 



li ElEOCHARIS INTERMElilA, SchulteSi. 



Culms setaceous, diffuse, compressed, angular and sulcate; 

 spike lanceolate-ovate, 8 — ^10-flowered ; scales ovate-lanceo- 

 late, somewhat acute ; bristles longer than the nut; style 3-cleft; 

 nut obovaie, compressed, with an obtuse ridge in front, attenu- 

 ated ai the base, longitudinally striated, dull ; tubercle distinct^ 

 rostrate, slender. 



Eleocharis intermedia, SchuU. mant. 2. p. 9l. 



Scirpus intennedius, MuhL! gram, p; 31 5 Torr.! Jl. 1. p. 46. 



Culms cespitose, about a span long, mostly diffuse Or prostrate, of a 

 firm wiry texture, conspicuously sulcate and somewhat angular. Sheaths 

 cuspidate at the summit. Splice 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. Staynens 3. Nut of a light browii wheti 

 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, MuJdcnherg! ; Oneida county, 

 New York, Dr. Gray! and Jefferson county, in the same 

 state, Dr. Crawe! ; Georgia, Dr. Baldwin! 



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 " Scirjn/s 

 acicularis, Smith, Herb. Linn.,'''' but I can see no resemblance 

 between our plant and that species. 



S. Eleocharis obtusa, Sshukes. 

 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. 



