CaREX. CLX. CYPERACEZ. 585 
68. C. peNNsyLvaNica. Lam. (C. marginata. Mud.) 
Oo Spike erect, pedunculate, subtriquetrous, with an obtuse glume; 92 
spikes 1—3, ovate, subsessile, subapproximate, few-flowered; perig. ovate-glo- 
bose, tomentose, short-rostrate, slightly 2-toothed, about equal to the ovate- 
acuminate, or oblong-acuminate, deep reddish glume; st. 4—12’ high, erect, 
stiff, with short leaves.—Open woods and hedges, common—much resembles 
the preceding, but larger in all its parts, and readily distinguished by its differ- 
ent aspect and its deep reddish-brown scales. 
69. C. Emmonsi. Dew. 
3’ Spike sessile, short; Q spikes 2—3, approximate, sessile, few-flowered, 
often one long radical peduncle; perig. globose-triquetrcus, attenuated at the 
base, rostrate, pubescent, at the orifice oblique, about equal to the ovate glume; 
st. decumbent, 6—10’ high, leafy at the base, pale ash-green—On dry fields 
and hills; common. : 
70. C. Novz-ancuiz. Schw. 
& Spike short, slender, oblong; 9 spikes 2—3, ovate, alternate, sessile, 
remotish, few-flowered, bracteate; perig. 3—6, oval-triquetrous, rostrate, cos- 
tate, slightly pubescent, a little longer than the ovate, mucronate glume; st. 
48’ high, slender, subdecumbent, longer than the leaves.—Pale green. Open 
woods in high grounds. 
B. collecta. Dew. (C. collecta. Dew.) St. 10—16’ high, very slender erect; 
Q spikes 2—4, lower short-pedunculate; perig. more tapering into a beak, 
slightly bidentate—High lands of Mass.; not abundant. 
71. C. umpBeLuAtTa. Schk. 
3 Spike short, erect; 2 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; st. 44’ high, 
with very long leaves. 
B. vicina. Dew. 1 or 2 9 spikes close to the J’, sessile ; the other g spikes on 
their own stems or radical peduncles.—In small tufts on dry hills. Both varie- 
ties grow on the same root, but Schk. saw and figured only the first. 
72. C. pre=cox. Jacq. 
3’ Spike erect, subclavate; 9 spikes 1—3, ovate, bracteate, approximate, 
lower one short-pedunculate; perig. 6—12, ovate and subglobose, triquetrous, 
pubescent, short-rostrate, equal to the ovate, acute, or mucronate glume; sf. 
2—6! high, leafy at the base.—On rocky hills, Salem, Mass., Pickering, Ips- 
wich, Mass., Oakes. 
2. Pistillate spikes with nearly inclosed peduncles. 
73. C. vestira. Willd. 
3 Spike single, rarely 2, cylindric, oblong; Q spikes 2, ovate-oblong, ses- 
sile, subapproximate, 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. pupescens. Muhl. 
Q Spikes 2—3, oblong, rather loose-flowered, erect, bracteate, the lowest 
pedunculate; perig. 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. ruava. LD. 
Q Spikes 2—4, ovate-oblong, approximate, sometimes androgynous; 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-greenWet and cold soils; com- 
mon. 
6. C. LEPIDOCARPA. T'aush. 
»  y_Spikes 1—3, short and round-ovate, often aggregated, sessile, dense- 
dowere., the lowest sometimes remote and pedunculate; perig. ovate, trique- 
