378 ORDER 154. CYPERACE.E. 



if any, remote ; perigynium elliptic, rough-hairy, scarcely longer than the ovate-cuspi- 

 date glume. Borders of woods, Columbus, Ohio. 2f. 



131 C. Kueiskernil Dew. Spikes rather loose, 1 If , with recurved peduncles ; 

 perigynia ovate-oblong, glabrous, nerved. Otherwise as in C. Sullivantii. Woods, 

 Oriskany and Rome, N. Y., and Cleveland, O. 



132 C. vaginala Tausch. $ Spike nodding in flower, stalked; 9 2 or 3, remote, 

 loose ; bracts short with long sheaths ; perig. 510, brown-black, globular-ovate, the 

 beak terete, short, bent, exceeding the obtus gl. Weak, 1 2f. N. Y. (rare), L. Sup. 



133 C. ca.pilla.ris L. Spikes minute, 3 4, oblong, tawny, peduncle capillary; 

 perigynia 4 0, oval, nerveless, the short beak exceeding the obtuse rusty glume. 

 Pale, delicate, 4 7', leaves long, bracts short. White Mis., N. H. 



134 C. flexilis Rudge. Spikes 35, $ clavate, ? oblong, on flexile nodding pe- 

 duncles ; bracts bristle- or scale-form ; perigynia ovoid-lanceolate, 2-toothed, scarce 

 longer than the obtnsish rusty glumes. Soft-hairy. 1 lf. Ct., N. Y. : rare. 



135 C. Itevigata Sm. Like C. flexilis, but with peiigynia nerved, bicuspidate, the 

 glumes awn-pointed, and the whole plant smooth. Near Boston. 



136 C. fulva Good. Culm If, rough; spikes 3 4, all erect, ? ovoid-oblong; perig. 

 ovoid, twice longer than the dark-brown acutish glumes. Near Boston. 



137 C. veuttsta Dew. Spikes 3 or 4, $ linear, 1' 16", rusty, stalked; ? loose, 

 <i 1(5", brown-green; perigynia lance-oblong, 2$", conic-beaked, nerved, rough- 

 hairy, twice longer than the glumes ; leaves If, culm 2 3f. S. Car. to Fla. 



138 C. teuax Chapm. Spikes 2 4, a slender, 1', ? oblong, i 1', dense, subsessile; 

 bracts longer; perigynia oval, short-beaked, finely-veined, pubescent, twice longer 

 than the ovate glumes; culm If; leaves rolled. Ga., Fla. 



139 C. daisy carpa Muhl. Spikes 3 4, subsessile, i 10", i linear, ? oblong, 

 hoary, bracts exserted ; perigynia oblong-ovate, tomentous, short-beaked, longer than 

 the ovate-acuminate glumes. If. Dry fields, South. 



1 40 C. Torreyi Tuckm. Spikes subsessile, erect, the $ obloug, the ? ovoid, 2 or 3; 

 perigyuia obovoid, very obtuse, scarcely beaked, strongly nerved, longer than the 

 ovate glumes ; culm, leaves, and short bracts downy. Penn., and North. Rare. 



141 C. Barrattii Schw. & Torr. Spikes cylindric, 612", dark-purple, short-pe- 

 dunculate, the ? 2 or 3 ; perigynium ovoid, little exceeding the ovate glume ; culm 1 2f, 

 sharp-angled, leaves much shorter, bracts short. Marshes, N. J. to Car. 



142 C. pallescens L. Spikes approximate, 3 or 4, short-stalked, pale, 3 oblong, 6"; 

 ? ovoid, 45", bract a little exserted; perigynia ovoid, nerveless, scarce longer 

 than the glumes. Plant pale, 6 15', leaves as long. Dry meadows. 



ft. untliiltila. Lower bracts wary-rugous at base ; leaves longer. 



143 C. limosa L. Spikes pedunculate, with dark-purple glumes. $ linear, erect; ? 

 1 2, oblong, drooping; bracts shorter than the culm; perigynia ovate, scarce equal- 

 ing the broad, mucrouate glumes. Glaucous, 8 16'. Marshes: common. 



144 C. r-ariflora Sm. Like C. limosa, but smaller (4 !0'), ? spikes 12. linear, 

 loosely 5-10-flwd. ; perig. involved in the glume. Mountains, N. H., Me., and N. 



145 C. irragua Sm. ? Spk. 2 4, ovoid-oblong ; bract exceeding the culm; perig. 

 oval, much shorter than the long-pointed dark-purple glume, 820'. Leaves linear, 

 flat. Spikes drooping as in C. limosa. Bogs, Pa. to Wis., and N. 



146 C. miliacea Muhl. Spikes cylindric, slender, H 2'. $ erect, s nodding, loose 

 below; perig. ovoid-triquetrous, short-beaked, as long as the white-edged awned 

 glume. Culm 1 2f, leaves rather broad. Wet meadows : common. 



147 C. scabrata Schw. Spikes 36, cjlindric, 1^2', suberect, dense, the lower on 

 long peduncles ; bracts long ; perig. ovoid-triquetrous, rough, the slender beak equal- 

 ing the acuminate glume. Culm 1 2f, leaves broad. Swamps, Can. to Car. 



148 C. histricina Willd. S Spk. linear, stalked, 1', ? 3, oblong-cylindric, dense, 

 1218", near, nodding; perig. ovoid, inflated, nerved, diverging, the long slender 

 beak bifid, longer than the awned glume. 1 2f, very leafy. Swales: common 



ft. Cooltyi. Slender; spikes ovoid, the lowest long-pedunculate. 



