CYPERACEJE. (SEDGE FAMILY.) 535 
12. C. canescens, L., var. vitilis, Carey. Spikes 5-7, small, scat- 
tered, roundish, 6 — 10-flowered; perigynia ovate, plano-convex, short and rough- 
beaked, spreading and tawny at maturity, rather longer than the ovate acute 
white scale. (C. spharostachya, Dew.) — High mountains of North Carolina, 
and northward. — Culms weak and slender, 10/ — 15! high, longer than the nar- 
row and tender leaves. 
13. C. scoparia, Schk. Spikes 6 — 8, approximate, ovate or oblong, many- 
flowered ; perigynia oblong-lanceolate, narrowly margined, acute at the base, ta- 
pering into a long 2-cleft rough beak, longer than the ovate-lanceolate pointed 
scale, turning light brown at maturity. — Swamps, South Carolina, and north- 
ward. — Culms 19? - 2? high, rough above, longer than the narrow leaves. 
Var. lagopodioides. Spikes 10-15, obovoid; perigynia lanceolate, re- 
maining pale green at maturity, nearly twice as long as the rather obtuse scale. 
(C. lagopodioides, Schk.) — Mountains of North Carolina, and northward. — 
Culms commonly taller than the preceding. 
14. C. straminea, Schk. Spikes 3-6, distinct, ovoid; perigynia ovate 
or round-ovate, broadly winged, abruptly narrowed into a short 2-cleft beak, 
somewhat tawny and spreading at ee longer than the ovate-lanceolate 
scale. 
Var. festucacea. Spikes 6-8, pale, obovoid or somewhat club-shaped, 
scattered ; perigynia ovate, less broadly margined, tapering into a more slender 
beak, erect and pale green at maturity. (C. festucacea, Schk. C. feenea, Torr., 
§c., a form with more rigid culms, and more crowded and glaucous spikes.) — 
Swamps, very common. — Culms 1°- 2° high. Leaves narrowly linear, shorter 
than the culm. 
15. C. foenea, Muhl. Spikes 6-10, large (6 — 8" long), ovoid, approxi- 
mate; perigynia flat, broadly obovate, wing-margined, abruptly contracted into a 
very short beak, longer than the lanceolate scale; nut oval, stalked. (C. alata, 
Torr.) — Marshes, Florida to North Carolina. — Culms 2°- 3° high, leafy below 
the middle. Spikes brownish at maturity. Perigynia 23" long. 
B. Terminal spikes sterile: the others fertile or with few sterile flowers at the summit : 
perigynia beakless. 
* Sales aoni; black or brown : dir velint undis leaves narouly 
linear, glaucous. 
16. C. torta, Boott. Sterile spike solitary, peduneled ; paiite soot 
- 8, linear-club-shaped, loosely flowered below, spreading, the lowest peduncled ; 
perigynia elliptical, tapering and at length spreading or recurved at the apex, 
nerveless or nearly so, as long as the oblong black scale ; culms smooth (1° high) ; 
leaves narrowly linear. (C. verrucosa, Schw., not of Ell.) — Mountain swamps, 
North Carolina, and northward. 
. M. C. stricta, Good. Sterile spikes 1-2; fertile spikes 2 —4, linear-cylin- 
drical, “sessile or the lowest short-peduncled, erect, dense-flowered ; perigynia 
elliptical, erect, nerveless, commonly shorter than the narrow obtuse reddish- 
brown scale; culms (2° high) rough-angled; leaves linear. (C. acuta, EIL, fc., 
REU- ce in the upper districts, and northward. a 
