536 CYPERACEJ. (SEDGE FAMILY.) 
* * Scales awned, green: fertile spikes on nodding peduncles: bracts long and leaf- 
like: leaves broadly linear. 
18. C. erinita, Lam. Sterile spikes mostly 2, often with fertile flowers 
intermixed ; fertile spikes 3-4, long-cylindrical, dense-flowered, on long drooping 
peduncles; perigynia round-ovate or obovate, somewhat inflated, 2-nerved, ab- 
ruptly short-pointed, shorter than the long and rough-awned scale ; culms rough- 
angled above (2° -3° high). — Swamps in the upper districts, and northward, — 
Spikes 13! - 3 long. 
19. C. Mitchelliana, M. A. Curtis. “ Spikes in threes, peduncled, some- 
what distant, oblong, slightly nodding; terminal spike staminate at the base and : 
summit; the lowest peduncle scarcely sheathed; perigynia ovate, acute, gla- 
brous; scales oblong, the lowest with a long cusp much exceeding the fruit, the 
upper about equalling it.— Wet places, Chatham County, North Carolina.” 
Curtis, — Culm slender, 18’ high, rough above. Spikes 1/ long. 
§ 2. CAREX Proper. Stigmas 3: nut 3-angled. 
A. Spike solitary. 
* Diccious 
20. C. Boottiana, Benth. Culms slender, naked, rough, shorter than the 
linear bright-green radical leaves; spikes (rarely 2) many-flowered, purplish, 
cylindrical, erect ; fertile spike dense-flowered ; perigynium obovate, obtuse oF 
abruptly short-beaked, ciliate and 2-toothed at the orifice, nerved, pubescent, cili- 
ate-toothed on the angles, shorter and narrower than the oblong-acute or abruptly 
pointed purple scale. — North Alabama, Peters, and westward. — Culms 6-8 
long. Spikes 1'/- 2! long. 
* * Monacious. Spike sterile above, fertile below. 
21. C. polytrichoides, Muhl Spike linear, few-flowered; perigynia 
lanceolate-oblong, many-nerved, obtuse and entire at the apex, twice 2$ long as 
the oblong mucronate scale; bract scale-like or occasionally leafy and exceeding 
the spike; culms tufted, filiform, weak (6/ — 19! high), rough above, longer than 
the very narrow leaves. — Bogs and swamps, Florida, and northward. 3 
22. C. Fraseri, Sims. Spike oblong, many-flowered, the fertile portion 
globose; perigynia ovoid, inflated, abruptly short-pointed, longer than the oblong 
obtuse hyaline scale; leaves very wide (1’ or more), obtuse, serrulate and wavy 
on the margins, convolute below, and sheathing the base of the-naked | 
culm. — Shady banks of streams on the mountains of North Carolina. — 
6! - 12! long, longer than the culm. TUE didis 
23. C. Steudelii, Kunth. Spike linear (6”-10" long); scie AM Á 
20-25; perigynia 1-4, ovoid, smooth, 3-nerved, abruptly contracted W^ 
slender compressed rough-edged beak, longer than the ovate white green-keeled 
scale; leaves linear, flat, abruptly pointed, longer than the bristleJike Pr 
culms. — Shady banks, Florida, and westward. — Culms 3-8 long)“ 
