YG4 Obdeb 155.— CYPERACEjE. 



leaves. — Mts. N. Car. (Buckley) and Ya. to Fla. (G. laxiflora, /?. stylofiex^ 

 Boott. t. 87). 



133 C. debilis Michx. $ Spiko erect, filiform ; $ spikes 3 — 4, not very rarely 

 pistillate above, filiform, hose-flowered, flezuous, nodding, remotisb, 1 — 2' long; 

 perig. oblong-lanceolate, subtriquetrous, alternate, rostrate, bind, glabrous, nerved, 

 nearly twice longer than the ovate-lanceolate glume; st. 1 — 2f, triquetrous and 

 scabrous above, leafy towards tbo base. — Bright green. Moist woods and mead- 

 ows, common. (C. flexuosa Schk.) 



134 C arctata Boott. $ Spikes 3 — 4, long and Blonder, loose-flowered, nodding 

 and remote ; perig. ovate, triquetrous, lanceolate or loug-rostrate, subventricous, 

 bifid, glabrous, little surpassing the ovate, membranaceous, mucronate glume ; et. 

 10 — 20', scabrous above and leafy below. — Palo green. In the same situations 

 as the preceding, common. (C. Sylvatica Dew. Sill. Jour.) 



135 C. Sullivantii Boott. (t. 122). 5 Spikes 3, oblong, erect, cylindric, rather 

 loose-flowered, bracted, the lowest long-peduuculato and sparse-flowered below ; 

 perig. ovate or oval, apiculale, scarcely veined, scabrous-hairy, short-pediceled ; $ 

 glumo on the lowest spiko obovate, obtuse or cmarginate, long-cuspidate, the 

 cusp extending abovo tho fruit; on tho upper spiko tho cusp is shortened and 

 the oblong glumo scarco equals the fruit; culm 1 to 2f, longer than tho leaves; 

 plant slightly hairy, light green. — Columbus, Ohio (Sullivant). 



136 C. Kneiskernii Dew. $ Spikes 3, long-cylindric, rather distant, sublax- 

 flowered, with recurved poduncles ; perig. ovate, oblong, subtriquetrous, glabrous, 

 terele-conic, rostrate, short-2-toothed, a littlo longer than tho ovate and oblong 

 glume which is obtusish and short-mucronate. — Woods, Oriskany and Rome, N. 

 Y. Closely related to C. Sullivantii, but differs materially when mature, in tho 

 fruit, glumo and long triquetrous achonium. Also, by tho same marks, from C. 

 arctata Boott. to which Carey improperly (as mentioned by Boott. t., 122) re- 

 fers it. 



137 C. capillaris L. & Spiko small; $ spikes 2 — 3, ovate, oblong, about 6- 

 flowerod, loose-flowered, long and recurved pedunculate ; perig. oval, short-ros- 

 trate, oblong, obliquo at the orifice, longer than the oblong, ovate, obtuse glume; 

 st. 2 — 7' high, leafy at tho base ; lvs. narrow, long. — Grows in tufts, very deli- 

 cate, 4 to G', pale green. Alpine regions of tho Whito Mts. (Robbius). 



138 C. fulva Good. 2 Spikes 3, oblong, subdense-flowered, erect ; perig. ovate, 

 round, short-rostrate, bicuspidatc, smooth, binerved, twice longer than tho ovate, 

 dark brown, subacute glume ; st. a foot high or more, triquetrous, leafy towards tho 

 base. — Pale green. Near Boston (Greene). (C. binervis Ed. 1.) 



139 C. lcevigata Smith. $ Spike ono and erect, somotimes 2 ; ? spikes 2 — 3, 

 oblong, bracteato, pedunculate, nodding; perig. ovate-lanceolate, triquetrous, 

 nerved, rostrate, bifurcate, subdense-flowered, about equal to the ovate, cuspidate 

 glume ; st. 1 — 2f, scabrous above, leafy towards the base. — Light green. Near 

 Boston (Green). Raro. This and the last probably introduced from Eur. (C. 

 Greeniana Ed. 1.) 



140 C. flezilis Rudge. (B. t., 19). $ Spilces 2 — i, ovate-oblong, cylindric, nod- 

 ding ; perig. ovate, subconic, rostrate, bidentate, scarcely shorter than tho ovate, 

 obtusish, oblong glume ; st. 12 — 18', Greet, striate; lvs. short, and shorter below ; 

 lvs. and bracts ciliatc. — Bright green. Oneida Co., N. Y. (Gray), and far west- 

 ward. (C. castanea Wahl.) 



141 C. vemista Dew. (B. t., 123.) $ Spike long, slender, with oblong, obtuse, 

 tawny glumes; $ spikes 2 or 3, long-cylindric, rather loose-flowered, lowest dis- 

 tant, on a long, exsert stalk, often sparse-flowered, recurved, dark; perig. conic 

 above, tapering below into a pedicel, short-beaked, 2-toothed, veined, rough-pubes- 

 cent, twice longer than tho ovato, obtuse (sometimes mucronate) glume ; culm 1 

 to 2fJ longer than tho linear-lanceolate, light green leaves. — S. Car. to Fla. 



142 C. tenax Chapm. (Boott. t., 69.) t Spiko short, cylindric, with oblong, 

 acute glumes ; $ spikes 2 or 3, ovate or oblong, dense, subsessile, the lower some- 

 times remote; perig. oval, triquetrous, some tapering below, conic-beaked or shorter 

 and 2-tootheci, finely striate, pubescent, twico longer than tho narrow-ovate, acute 



