592 CLX. CYPERACEiE. Carex. 



the ovate-lanceolate, awned glume ; 5^ 12—24' high, nearly round below, with 

 flat, linear-lanceolate leaves and bracts. — Glabrous and yellowish-green. Wet 

 places and marshes. Common. 



129. C. FiLiFORMis. Gooden. 



^ Spikes 2—3, with oblong glumes ; 9 spikes 2—3, ovate, oblong, short- 

 cylindric, close-flowered, remotish, erect ; perig. ovate, villose, short-rostrate, 

 bifurcate, about equaling the ovate, acute glume ; st. 20 — 30' high, erect, slen- 

 der stiff", with convolute'leaves and bracts. — Pale green. Marshes. Common. 



130. C. LACL-STRIS. Willd. 



(^ Spikes 3 — 4, erect, sessile ; 9 spikes 2—3. erect, oblong, cylindric, 

 short-pedunculate ; perig. ovate-oblong, tapering or lanceolate, bitm'cate, gla- 

 brous, a little longer than the oblong, mucronate glume ; st. 2 — 3f high, sca- 

 brous above, erect and large, with long and large leaves and bracts. — Light 

 green. Marshes. Common. 



131. C. RiPARiA. Gooden. 



^ Spike 3—5, oblong, thick, erect, sessile ; 9 spikes 2—3, erect, oblong, 

 often long-cylindric ; j^erig. ovate-elliptic, contracted into a short, bifurcate 

 beak, glabrous, about equaling or shorter than the ovate, mucronate, or oblong- 

 lanceolate glume ; st. 2 — 3f high,- scabrous above, leafy below. — Bright green. 



132. C. oLiGospERMA. Michx. (Oakesiana. Dew.) 



(^ Spikes several, sometimes one, erect, slender, long-cylindric, with 

 an oblong' obtusish glume ; 9 spikes 1—3, ovate, globular, sessile, distant ; 

 peri^. few, ovate, inflated, acute, nerved, short-rostrate, entire at the orifice, 

 /-glabrous, a little longer than the ovate-lanceolate glume ; st. 1 — 2f high, sca- 

 brous above, leafy below; lis. involute and rush-like. — Light I'^een, About 

 the lakes of JST. Eng. and N. Y. Abundant in the marshes of Micu. 



133. C. VESICARIA. 



(^ Spikes about 3, erect, oblong ; 9 spikes 2 — 3, cylindric, erect, dense- 

 flowered, alternate, long-bracteate ; perig. ovate, oblong-conic, terete, inflated, 

 rostrate, nerved, diverging, glabrous, bicuspidate, nearly twice longer than the 

 oblong-lanceolate glume ; st. about 2f high, shorter than the leaves. — Bright 

 green. Marshes. Not common. 



/?. utricvlata. Dew. (C. utriculata. Boolt.) Perig. oblong-elliptic, nerved, 

 cylindric-rostrate, bicuspidate, more or less longer than the lanceolate, sca- 

 brous-awned glume. — Marshes, with the other. 



134. C. AMPULL.4CEA. Goodeii. 



^ Spikes 2—4, oblong, cylindric, erect; 9 spikes 2—3, long-cylindric, 

 erect, close-flowered, short-pedunculate, sometimes (^ above ; perig. subglobose, 

 inflated, diverging, nerved, glabrous, setaceous, rostrate, bifurcate, little longer 

 than the lanceolate glume ; st. 2— 3f high, obtusely triquetrous, leafy.— Light 

 green. Marshes. Common. 



135. C. MoxiLE. Tuckerman. 



J" Spiky^s 2—4, long, slender, cylindric, with a long, lanceolate glume ; 9 

 spikes 2, long, cylindric, short-pedunculate, subloose-flowered, erect; perig. 

 ovate, long-conic, sublriquetrous, inflated, rostrate, bicuspidate, more than 

 twice longer than the oblong-lanceolate glume ; st. 15 — 30' high, erect, with 

 long leaves and bracts. — Bright green. Marshes. Not common. More loose- 

 flowered and fruit longer than that of C. visicaria. L. 



136. C. Bri>LATA. Schk. 



J* Spikes 3, erect, slender, cylindric, with oblong-lanceolate glumes ; 9 

 spikes 2 — 3, rather long, cylindric,' nearly erect ; perig. ovoid-globose, inflated, 

 glabrous, costaie, with a ibng, scabrous beak, bifurcate, longer than the lance- 

 olate glume ; St. 20—30' high, rather slender, triquetrous, scabrous above, leafy 

 and shorter than the leaves.— Glabrous, light green. In wet meadows. Com- 

 mon. 



137. C. TucKERMAXi. Dew 



^ Spikes 2 — 3, cylindric, lower ones .sessile and short, Avith an oblong, 

 acutish glume ; 9 spikes 2—3, oblong, cylindric, thick and large, pedunculate, 

 subloose-flowered ; perig. inflated, ovate, large, conic, costate, bifurcate, gla- 



