^63 Obdeb 155.— CYPERACEjE. 



than tho orate, acute or cuspidate glumo ; culm 3 to 8', erect, triquetrous, slender, 

 at length nearly prostrate, with sheathing, leafy bracts; Ivs. radical, broad (7 to 

 10''), 3-veinsd, pale green. — Shades, N. States. Confounded with No., Ill or 

 113, 3, until described by Carey in Sill. Jour, and Gray's Manual. 



115 C. santliospenna Dew. (B. t. 8G.) $ Spike cylindric, short, sessile, with 

 oblong, obtuse glumes; 9 spikes 3 to 6, oblong, cylindric, rather loose-flowered, 

 leafy-bracted, suberect, subremote, tho lowest sometimes recurved; perig. ovate, 

 oblong, obtusish, minutely veined, slightly apiculate, yellow ochre color in maturity, 

 twice or thrico longer than (or the lower equaling) tho broadly ovate, acute or 

 mucronato glume; culm 10 to 16', erect, smooth, and with the lanceolate, sheathing 

 Ivs. at length yellowish. — N. J. to Fla. and Tex. (C. flaceosperma Ed. 1 .) 



116 C. blanda Dew. ? Spikes 2 — i, oblong, cylindric, subsparso-flowercd, alter- 

 nate, approximate, hracleale, highest subsessile, tho lowest on a long, 2-edged 

 peduncle ; perig. obovate and scarcely attenuate below ; subtriq. nerved, recurved 

 at the apex, entire at tho orifice, littlo longer than tho ovate, scabro-mucronato 

 glume; st. 8 — 12', triquetrous, leafy towards the base; Ivs. long as the stem. — 

 Pale green or glaucous. Meadows and dry, open woods, common. (C. conoidca 

 MuhL nee Schk., C. laxiflora p. Carey, Boott.) 



117 C. retrocurva Dew. $ Spikes 2 — i, on long, filiform, recurved peduncles, 

 bracteate, subdense-flowered, short and thick, oblong; perig. ovate, triqu. nerved, 

 obtusish, equaling tho ovate, cuspidate glumo; st. G — 12' high, prostrate; Ivs. 

 radical and wide. — Glaucous. Open woods, rare. Has been considered C. digit- 

 alis, Willd., but is different 



118 C. conoidea Schk. nee Muhl. (B. t. 81.) £ Spikes 2 — 3, oblong, or ovate- 

 oblong, remote, erect, rather dense-flowered, bracteate ; perig. oblong-conk, obtusish, 

 glabrous, nerved, subdiverging, entiro at tho mouth, a little longer than the ovate- 

 subulate glume; st. 8 — 12' high; Ivs. towards tho base, shorter than the stem. — 

 Bright green. Moist, upland meadows, common. 



119 C. grisea WahL (B. t. 85.) & Spike oblong, slender; $ spikes 2 to 4 oblong, 

 lax-flowered, few-flowered, erect, remote; perig. ovale, or oblong-ovate, obtusish, 

 glabrous, ventricous, nerved, subtriquetrous, entiro at tho mouth, a littlo longer 

 than tho ovate, scabro-mucronate glume; st. 10 — 18" high, triquetrous, leafy. — 

 Bright, to pale green. Woods, hedges and meadows, common, N. and Mid. States. 

 (C. laxiflora Schk. ct Muhl. nee Lam.) 



120 C. juncea Willd. & Spike short-cylindric, with oblong, obtuse glumes; 2 

 spikes 2, rarely 3, filiform, loose and alternate-flowered, pedunculate, long-setar 

 ceous-bracted ; perig. lanceolate, slender, subtriquetrous, longer than the ovate, 

 obtuse, white-edged glume ; culm If or more, slender, longer than the radical, bristle- 

 form leaves; aspect light green, rush-like. — Roan Mts., N. Car. (C. miser Buckley). 



121 C. digitalis Willd. (B. t. 92.) 2 Spikes about 3, loosely 4 — lO-fknvered, 

 oblong, distant, lax and recurved, Icafy-bracted; perig. ovate, triquetrous, alter- 

 nate, nerved, glabrous, short and obtuse, entiro at the orifice, longer than the 

 lance-ovate glume; st. 4 — 12', shorter than tho long, linear, decumbent leaves. — 

 Tale green. (C. Caroliniana Buckley.) 



3. Van Vleokii Dew. Smaller; perig. mororemoto and smaller. — Open, moist 

 woods, common. Has been mistaken for 0. oliocarpa, Sehk. & MuhL 



122 C. etrarnea Boott. (t. 184). $ Spikes 2 — 3, erect, 3 — 6-flowered, ovate, 

 with white, leafless sheaths, and tho upper higher than the S spike ; perig. ovate- 

 globous, rostrate, or slightly obovate, glabrous and brown in maturity, twice 

 longer than tho white, ovate, hyalino glumo; cm. 4 — 10', erect, with subradical 

 and bristle-form-leaves. — Palo green, commdn, limestono grounds. S. W. Vt. to 

 Kan. and southward. 



123 C. Washingtdniana Dew. 6 Spike erect, slender, with oblong, obtuse, dark 

 brown glumes; S spikes 2 to 4, rarely 6, upper short, sessile, near, lower much 

 longer, loose-cylindric, subremote, stalked, loose-flowered, all brown ; perig. ovoid, 

 tapering above, compressed-triquetrous, orifice entire, about equaling or often 

 shorter than tho ovate -lanceolate, dark-brown, white-edged glume; culm If or 

 more, triquetrous, smooth, longer than tho fat, smooth Ivs. ; light green. — White 

 Mts, N. 11., tho most common Carex there, forming a turf with the mos303 and 



