Carex. CLx. CYPERACEiE. 589 



hyaline glume ; st. 4 — 10' high, erect, with subradical and bristle-form leaves.— 

 Pale green, common. Abundant along the banks ol' the Genesee. 



102. C. DKDiMs. Michx. (C. (It'xuosa. Srhk.) 



(^ ii/'ikc croct, hlilonn; 9 •y'/'''*" •^ — ^, fililbrm, luose-flowerod, flexuou.s, 

 nodding, rcmotish, 1 — 2' long; pcri^. oblong-lanceolate, snlnriquelrous, alter- 

 nate, rostrate, bilid, glabrous, nerved, nearly twice longer than the ovate-lanceo- 

 late glume; si. I — "Jr high, tritjuctrous and scabrous above, leafy towards the 

 base. — Bright green. Moist woods and meadows, common. 



103. C. AUCTATA. Boott. (C. .sylvatica. Dew.) 



9 Spikes 3 — 4, long and slender, loose-flowered, nodding and remote ; 

 perig. ovate, triquetrous, lanceolate or long-rostrate, subventricose, bifid, gla- 

 brous, little surpassing the ovale, membranaceous, mucronate glume; 5^10 — 

 20' high, scabrous al)ove and leafy below. — Pale green. In the same situations 

 as the preceding, common. 



104. C. FLExiLis. Rudge. (C. castanea. Wahl. C. blephoriphora. Gray.) 

 9 Spikes 2 — 4, ovate-oblong, cylindric, nodding; perig. ovate, subconic, 



rostrate, bidentate, scarcely shorter than the ovate, obtusish, oblong glume ; st. 

 12 — 18' high, erect, striate ; Ics. short, and shorter below; Ivs. and triads ciliate. 

 — Bright green. Oneida Co., N. Y., Gray. 



105. C. Wasiiingtoniaxa. Dew. 



cf Spike erect, with oblong and obtuse black glumes; 9 spikez 2 — 5, 

 oblong, cylindric, subremole, erect, loo.se-flowered, black or dark brown, sub- 

 distant, upper sessile ; perig. oval, acutish at both ends, glabrous, short-rostrate, 

 entire at the orifice, about equaling the ovate-oblong, subacute, blackish glume 

 with a white edge; st. a foot or more high, triquetrous, subscabrous above. — 

 Light green. Seed distinctly triquetrous. Near summit of Mt. Washington, 

 N. H., Barratt. Is distinct from C. saxatilis, L., already described as found 

 on the White Mts. 



106. C. SULLIVAXTII. 



9 Spikes 3, oblong, erect, cylindric, rather loose-flowered, bracteate, and 

 the lowest long-pedunculate and sparsely flowered below; perig. ovate, acute 

 and subrostrate, subtriquetrous and 2-toothed, equaling the ovate-oblong and 

 mucronate glume; plant light green. — Ohio. 



107. C. Kmeiskernii. Dew. 



9 Spikes 3, long-cylindric, rather distant, sublax-flowered, with recurved 

 peduncles ; perig. ovate, oblong, subtriquetrous, terete-conic, rostrate, sliort-2- 

 toothed, a little longer than the ovate and oblong glume, which is obtusish and 

 short-mucronate. 



108. C. WooDii. Dew. 



9 Spikes 1 — 3, ovate-oblong, loose-flowered, erect, lower long-peduncu- 

 late, recurved ; perig. obovate, obtuse, subtriquetrous, closed at the orifice, 

 tapering below, twice longer than the ovate and acutish glume ; Ivs. narrow 

 and linear, and with the stem closely and slightly pubescent. — Jefferson Co., 

 N. Y. 



4. Pistillate spikes scarcely sheathed. 



109. C. PALLESCEXS. L. 



9 Spikes 2 — 3, oblong, short, cylindric, distant, nodding towards maturity ; 

 perig. oval, obtuse, round, about equal to, or a little shorter than, the ovate 

 glume ; 5/. 6 — 16' high, hardly erect ; bracts sometimes transversely rugose. — 

 Plant often subpubescent, and of a light green. In dry meadows. "Common. 



110. C. UNDur.ATA. Kunze. 



9 Spikes 2, erect, ovate-oblong ; perig. oblong, round, triquetrous, obtuse, 

 striate, very short-beaked, bidentate, longer than the oblong, cuspidate, mucro- 

 nate glume; St. 12 — 18' high, erect, triquetrous, scabrous; loiccr bract trans- 

 versely waved-plicate ; Irs. pubescent. — In the same situation as the preceding, 

 and scarcely to be distinguished from it. 



HI. C. ToRREYi. Tuckerman. 



J* Spike oblong, short pedunculate ; 9 spikes 2 — 3. short, oblong, subses- 



