551 
CYPERACEjE. (sedge family.) 
faint pellucid nerves, terminating in a straight obtuse point, rather 
longer than the ovate scale. (C. limbsa, var. livida, Wahl. C. Gray- 
ana, Dew ) — Peat-bogs, Oriskany, New York, and Pine barrens, New 
Jersey. — Occurs rarely with a single (sterile) spike, or with an addi¬ 
tional fertile one on an erect stalk 6'-9' long, arising from the base 
of the culm. The whole plant is very glaucous, and the leaves rigid 
and finely tapering. 
58. Ci ptlllic€R, L. Fertile spikes 1-3, commonly 2, ovoid, 
oblong, or cylindrical , closely flowered , remote; perigynia when young 
oblong, and contracted at each end, at maturity roundish-obovoid, scarce- 
ly inflated, with more obscure nerves, and a slightly-bent point, longer 
than the ovate pointed or awned scale; achenium triquetrous,flatten¬ 
ed at the top, contracted towards the base, distinctly dotted under a 
lens. (C. Meadii, Dew.) — Wet meadows and margins of streams. 
New England to Ohio and westward. — Very variable in the length 
and thickness of the fertile spikes, the slender forms approaching 
closely to the next; in both the shape of the fruit varies greatly with 
age. 
59. C» tet&niea, Schk. Fertile spikes 1-3, commonly 2, ob¬ 
long-cylindrical, loosely flowered, remote; perigynia when young point¬ 
ed at each end, at maturity obovoid, scarcely inflated , with a slightly- 
bent point, longer than the ovate pointed or awned scale; achenium 
ovoid-triquetrous, indistinctly dotted under a lens. (C. conoidea, Gray, 
Gram, Cyp., not of Schk. C. Woddii, Dew.) — Margins of lakes 
and rivers, N. New York to Michigan. 
60. C* Crawci, Dew. Staminate spike usually solitary, or 
with 1 (rarely 2) short additional ones at its base, the principal some¬ 
times fertile at the apex; fertile spikes 3-6, remote, and the lowest 
near the root, oblong or cylindrical , densely flowered, and sometimes 
slightly compound at the base; perigynia ovoid-oblong, obscurely nerv¬ 
ed, with a short slightly-bent point, longer than the rather obtuse 
scale. (C. heterostkchya, Dew.) — Clefts of rocks, Jefferson county, 
New York ( Crawe ), Lake Ontario ( Vasey ), and N. Michigan (Bull). 
— A very variable species, rigidly erect, 4'-12' high, in some of its 
forms much resembling the next, but the perigynium is less round, 
with fewer and more indistinct nerves, the bracts do not exceed the 
culm, and the staminate spike is long-peduncled. 
61. C. gramilaris, Mu hi. Staminate spike sessile, or short- 
stalked, occasionally bearing a few fertile flowers ; pistillate spikes 3- 
4, cylindrical, densely flowered, the lowest sometimes very remote, or 
near the base of the culm ; perigynia roundish-ovoid, prominently nerv¬ 
ed, with a minute slightly-bent point, longer than the acute scale; 
bracts long, exceeding the culm. — Wet meadows, very common. 
62. Ci Torreyi, Tuckerman. Staminate spike short-stalked ; 
fertile spikes 2-3, ovoid , closely approximate, all on included stalks; 
