Carex. CLX. CYPERACEiE. 685 



68. C. PENNsYLVANicA. Lam. re. niarginata. MuM.) 



^ Spike erect, pedunculate, subtriquetrous, with an obtuse glume; 9 

 spikes 1 — 3, o\%Tte, subscssile, suhapproximate, lew-flowered ; periir. ovate-glo- 

 bose, tomcntosc, short-rostrate, slii^luly '2-toothed, about equal to the ovate- 

 acuminnte, or oblonE^-acuininatc, deep reddish glume; st. 4 — 1'2' high, erect, 

 stifi', with short loaves. — Open woods and hedges, common — much n-sembles 

 the preceding, but larger in all its parts, and readily distinguished by its diller- 

 ent aspect and its deep reildish-brown .scales. 



69. C. E.M.MONsii. Dew. 



(^ Spike .sessile, short; 9 spikes 2 — 'A, approximate, sessile, few-flowered, 

 often one long radical peduncle ; pcri_>^. globose-triquetrous, attenuated at the 

 base, rostrate, pubescent, at the orifice oblique, about equal to the ovate glume; 

 sL decumbent, 6 — 10' high, leafy at the base, pale ash-green, — On dry fields 

 and hills ; common. 



70. C. Nov;e-an-gli^. Schw. 



cf Spike short, slender, oblong ; 9 spikes 2 — 3, ovate, alternate, sessile, 

 remotish, lew-flowered, bracteate ; peng. 3—6, oval-triquetrous, rostrate, cos- 

 tate, slightlv pubescent, a little longer than the ovate, mucronate glume ; 5/. 



4 8' high, slender, subdecumbent, longer than the leaves. — Pale green. Open 



woods in high grounds. 



/?. colkda. Dew. (C. collecta. Dcv\) St. 10— 16' high, very slender erect; 

 9 spikes 2 — 4, lower short-pedunculate ; perig. more tapering into a beak, 

 slightly bidentate.— High lands of Mass. ; not abundant. 



71. C. UMBKLLATA. Schk. 



J* Spike short, erect ; 9 spikes several, each on its radical peduncle, ovate, 

 subumbellate ; perig. ovate or globose, 5 — 8, acutish at either end, rostrate, 

 short-bidentate, pubescent, equaling the ovate-lanceolate glume; 5^. i — 4' high, 

 with very long leaves. 



/?. vicina. Dew. 1 ^r 2 9 spikes close to the ^, sessile ; the otJier Q spikes on 

 their own stems or radical peduncles. — In small tufts on dr>' hills. Both varie- 

 ties groAV on the same root, but Schk. saw and figured only the first. 



72. C. PRECOX. Jacq. 



^ Spike erect, subclavate ; 9 spikes 1—3, ovate, bracteate, approximate, 

 lower one short-pedunculate; prrig. 6—12, ovate and subglobose, triquetrous, 

 pubescent, short-rostrate, equal to the ovate, acute, or mucronate glume ; 5/, 

 2—6' high, leafy at the base.— On rocky hills, Salem, Mass., Pickering, Ips- 

 wicli, Mass., Oakes. 



2. PisliUate spikes with nearly inclosed peduncles. 



73. C. VFSTlTA. Willd. 



(^ Spike single, rarely 2, cylindric, oblong; 9 spikes 2, ovate-oblong, ses- 

 sile, suhapproximate, bracteate, often with stamens above ; perig. ovate, oblong, 

 subtriquetrous, nerved, short-rostrate, bifid, pubescent, a little longer than the 

 ovate-oblong, acutish, submucronate glume ; st. 18—30' high, acutely triangu- 

 lar and leafy below. — Common in wet places over the country. 



74. C. PUBEscENs. Muhl. 



9 Spikes 2—3, oblong, rather loose-flowered, erect, bracteate, the lowest 

 pedunculate ; pcriir. ovate-triquetrous, rostrate, nearly entire at mouth, pubes- 

 cent, a little longer than the ovate-oblong, carinate, mucronate glume; st. 

 10—20' high, and with the leaves, pubescent.— Moist woods and meadows ; 

 common. 



75. C. Fi.AVA. L. 



9 Spikes 2 — 4, ovate-oblong, approximate, sometimes androg)'nous ; perig. 

 ovate, closely imbricate, costate, bidentate, reflexed with a long, curved beak, 

 longer than the ovate-lanceolate glume; st. 10—20' high, rather obtusely 

 angled or triquetrous; glabrous; yellowish-green. — Wet and cold soils ; com- 

 mon. 



76. C. LEPiDOCARPA. Taush. 



9 Spikes 1—3, short and round-ovate, often aggregated, sessile, dense- 

 flowered, the lowest sometimes remote and pedunculate; perig. ovate, trique- 



