0»DEB 155.— CTPEEACEjE. 763 



lichens on the herders of ponds. (0. rigida, /?. Carey; but diCfers in Its fruit, 

 glume, looae spikes, Ivs. &c.) 



124 C. grarmlaris MuhL (B. t. 84.) $ Spikes 2 — i, oylindrio, oblong, dense- 

 flowered, subereot ; peirig. roundiah-ovaie, nerved, very shori-ieaked and recurved, 

 entire at the orifice, nearly twice as long as the ovate-acuminate glume ; St. 8 — 16', 

 erect or subdeoumhent, smooth, leafy. — G-lauoous green except the mature, yellow 

 spikes. Moist soils in meadows apd hedges, along brooks, abundant. 



IB. EEOTA. Perig. ovate, slightly inflated, short-acute, straight-beaked or acu- 

 minate ; in some the lov?er spikes are also long-peduncled. — S. 111. (Tasey) 

 and La. (Hale). 



125 C. pauicea L. 2 Spikes 2 — 3, too«e-^were(f, remotish, lowest long-peduncu- 

 late ; perig. sitbgloious, obtuse, entire at the mouth, a liiile greater than the ovate, 

 subacute glume ; st. a foot high, triquetrous, leafy at the base ; Ivs. shorter than 

 the stern. — Light green. Near Boston (Pickering). 



126 C. livida Vahl. 3 i^j'/ee oblong ; ? spikes 2 — 3, oblong-cylindric, sublooso- 

 flowered; perig. ovate-oblnng, subtriquetrous, subinflated, obtuse or acutish, entire 

 at the orifice ; longer than the obtuse, oblong glume ; st. 6 — 16' high, erect, tri- 

 quetrous, striate, with leaves about its own length. — Glaucous green. Sphagnous 

 swamp, near Utica, N. Y. (Gray) cedar swamp, N. J., and more northern regions. 

 (0. Grayana, Ed. 1.) 



127 C. tetdnica Sohk., fig. 207. S Spikes 2 — 3, oblong, loose-flowered, remote; 

 perig. obovate, recurved at the apex, entire at the orifice, with an ovate glume, ob- 

 tiislsb at the upper and mucronate at the lower part of the spike; st. 6 — 10' high, 

 triquetrous, longer than the flat and linear-lanceolate leaves. — Light green. Vp- 

 land meadows, rare. Its recurved short beak or crawiped neck (whence its name) 

 distinguishes it from C. "Woodii. 



128 C Woodii Dew. 5 Spikes 1 to 3, erect, cylindric, loose-flowered, the lowest 

 pedunculate, finally recurved; perig. obovate, tapering below, subpedioeled, tri- 

 quetrous, obtuse, orifice mature closed, sometimes short-apieulate, veined, glab- 

 rous, longer than the broad, hyaline, green-keeled, rarely mucronate glume ; culm 10 

 to 20', slender, stifi'; Ivs. very short; plant with a close, slight pubescence, pale 

 green. — Shores of Perch Laie, &c. Jeff. Co., N. Y. (Drs. Crawe and Wood). 

 A clear species (Dr. Vasey). 



129 C. Meidii Dew. (B. t. 82.) i Spike ovate-oblong, often long, with glumes 

 oblong, obtuse, tawny-edged; 2 spikes 2 to 4-, oblong or cyHndrio, rather lax- 

 flowered, upper ofl^en staminate at apex, lowest long-stalked, remote, all leafy- 

 bracted ; perig. oval or oblong, tapering some at both ends, veined, with entire 

 orifice, scarce equaling the broad-ovate, acute or obtuse-mucronate, tavmy-edged 

 glume; culm 8 to 10', erect, leafy below, rough above, longer than the leaves; 

 pale green. — Augusta, 111. (Mead), Mich, and Ohio. (0. panicea Carey ; but clearly 

 distinct.) 



130 C. oligocarpa Schk. (B. t. 93.) ? Spikes 2 or S erect, 3 or i-flowered, 

 bracteate ; perig. obovate, roundishririquetrous, short-rostrate, entire at the mouth, 

 longer than the oblong-mucronate glume; culm 6 to 12' high; Ivs. flat and shorter 

 towards the base; plant light green. — Open woods or hedges, rare. Differs frera 

 the following species in its fruit, pubescence, and stouter, coarser aspect. 



131 C. Hitchcocki^a Dew. (Boott. t. 94.) i Spike erect, pedunculate; 

 ? Spikes 2 — 3, erect, 5 to 10-flowered, lowest distant; perig. ovalrtriquetrous, to- 



poring at both ends, inflated, alternate, bent at the apex, striate, with a short, 

 truncated and open beak, about equaling or shorter than the oblong or ovate, mu- 

 cronate glume ; st. 10 — 24' high, erect, stiff, scabrous above, with long and leafy 

 bracts ; St. Ivs. and bracts scabrous and subpubeacent. — Borders of woods, N. 

 Eng. to III and Ky. 



132 C. Btylofl^xa Buckley, i Spikes cylindric, short, slender, erect, with ob- 

 long, obtuse glumes ; ? spikes 1 to 4, oblong, dense, some of them hear the stami- 

 nate and Bubsessile, the others distant or very remote, on long (2 to 6'), filiform, 

 exsert, drooping peduncles, leafy-bracted ; perig. ellipsoid, tapering below, rostrate, 

 often recurved, once to twice longer than the ovate or lance-linear, membranoos 

 glume ; culm 2{, slender, flaccid, triquetrou.s, longer than the smooth, light green 



