570 CYPERACE^. (sedge lAMILY.) 



sniuotli. — Swamps and low ^nnuids, coiiinion. — Culms very sU'IkIct, 1''-2° 

 high. 



C4. C. juncea, Willil. "Spikes 2-4, slumler, erctt, hruwniwh purple, 

 the sturiie omc liliforui, the fertile loosely flowered, somewhat remote, the low- 

 est on an exserted pedunilc ; perigynia .'J-aiifiled, si(iudle-sha])eil, rough at the 

 apex, with tlie orirtte entire; scales ovate, olituse, and longer than the peri- 

 gyuia, or lanceolate, nnuronate, and aliout eciualling them." Boull. — Sum- 

 mit of Hoan Mountain, Nortii Carolina. — Leaves somewhat bristle-form, 

 shorter than the culm. 



t t Spikes cylindrical or oIIuikj, deiiseli/ manij-Jloa'ercd : perii/ynia ovate or 



ruimdisli. 



6.5. C. scabrata, Sehw. Sterile spike short, single ; fertile spikes 4-5, 

 rather distant, on erect exserted peduncles ; ))erigyuia ovate, rough, spreading, 

 with few rather prominent nerves, tapering into a 2-cleft beak, longer than 

 the oblong acute brownisli scale. — Shady swamps, South Carolina and Ten- 

 nessee. — Culms (l°-li° high) and broadly linear tiiin leaves very rough. 

 Bracts leaf-like, destitute of sheaths. 



66. C. Barrattii, Torr. Sterile spikes 1-2, long and rigid; fertile 

 spikes 2-3, cylindrical, all on drooping peduncles, commonly sterile at the 

 summit; perigynia yellowish, compresscd-.3-angled, round-elliptical, slightly 

 rougliened, emarginate or eutii-e at the orifice, longer than the oblong obtuse 

 or pointed black scale. — Marshes, Nortli Carolina (Curtis), and north- 

 ward. — Culms I°-2° higli, rough-angled, longer than tlie rigid glaucous 

 leaves. 



67. C. verrucosa, Muld. Sterile sjiikes l -3, sessile or short-peduncled, 

 often with fertile flowers variously intermixed; fertile s]iikes4-10, cylindri- 

 cal or oblong, the upper ones sessile and erect, the lower long-peduncled and 

 drooping ; perigynia glaucous, globose-obovate, 3-angle(!, strongly nerved or 

 nerveless, abruptly contracted into a short and entire point, al)out as long as 

 the i)rown rough-awued scale. — Margins of ponds and rivers, Florida to 

 North Carolina. — Culms 2°-4^ high. Leaves glaucous, setaceously attenuate. 



68. C. Cherokeensis, Schk. Sterile spikes 2-4, slender; fertile 

 spikes .T-15, often 2-3 from the same sheath, oblong or cylindrical, .sterile 

 at the .summit, all ou hmg and nodding peduncles; jierigynia whitish, ob- 

 long, compressed-3-angled, short-beaked, with the orifice membranaceous and 

 obliquely 2-cleft, longer tlian the oblong acute scale ; stigmas elongated. — 

 Banks of the Apalachicola River, Florida, to the mountains of Georgia, and 

 westward. — Plant whitish. Culms l°-2° high, smooth, like the linear 

 leaves. 



69. C. microdonta, Torr. & Hook. " Staminates])ikes3 ; fertile spikes 

 about 4, exsertlv jjedunculate, erect, cylindrical, attenuate, and more or less 

 staminiferous at the summit; fruit ovate, compressed, obscurely striate, 

 acute, with a minutely bidentate orifice, scarcely exceeding the broadly ovate 

 acuminate, somewhat cuspidate scale." Torrey. — Mississippi (fiatVey), and 

 westward. 



