CTPERACE^E. (SEDGE FAMIL1., 601 



the teeth, however, rough-serrulate). (C. monile, Dew, in 1845, not of Tuckerm 

 6. vesicaria, var. cylindracea, Dew.) — Swamps, Yates Co., New York, Sartwell, 

 to Illinois ? 



144. G. moilile, Tuekerman. Sterile spikes 3, rarely 2 or 4; fertile spikes 

 mostly 2, rarely 3 or solitary, cylindracedu's or cylindrical (l'-2g-' long), mostly 

 slender, slightly or the lower when remote longer-peduncled ; perigynia globular- 

 orate, very ventricose, shining, abruptly contracted into a short smooth beak, longer 

 than the ovate-lanceolate acute or scarcely pointed scale; culm slender (l°-3° 

 high), sharply triangular, rough on the angles ; leaves narrow (barely 2" wide). 



— Wet places; common, especially northward. — Perigynia 2"-2^ - ' long,' 

 (C. vesicaria, var. alpigena, Fries, of N. Eu. appears to be a form of this.) 



145. C. Ollieyi, Boott. Resembles the two preceding and C. vesicaria ; 

 the fertile spikes denser and thicker, short-cylindrical (l'-l^'long); perigynia 

 (2^" -3" long) turgid-ovate, with the short beak rough-serrate at the apex and on 

 the awl-shaped teeth ; the scales acute or bluntish ; leaves (1" -2" broad) rough 



— Wet ground, Providence, Rhode Island, Olnt-y. 



146. C. Tuckermarii, Boott. Sterile spikes about 2 ; fertile spikes 2-3, 

 commonly 3, oblong or cylindrical, stout, somewhat approximate, on rough stalks, 

 the lowest often nodding ; perigynia shining, thin and delicate, much inflated, ovate, 

 ascending, tapering into a rather abrupt slender and cylindrical smooth beak, 

 much longer than the ovate or lanceolate acute or short-pointed scale ; the very 

 long narrow bracts and leaves rough, much surpassing the rough-angled culm. 

 (C. bullata of authors, not of Schk. C. cylindrica of former ed. ; but the cylin- 

 drica of Sehweinitz belongs mainly to the next or to some others, and is too 

 much confused for preservation.) — Swamps, W. New England to Penn., Illi- 

 nois, and northward. — Differs from the next in the more numerous and longer 

 fertile spikes (8''-2 ; long), and the larger, more inflated and membranaceous 

 fruit (4" -5'' long), with a smooth beak. 



147. C. bullata, Schk. Sterile spikes 2-3; fertile spikes most frequently 

 only one, sometimes 2, approximated, oblong or cylindrical, stout, sessile or on short 

 smooth stalks ; perigynia spreading, shining, turgid-ovate, tapering into a long cylin- 

 drical rough beak, much longer than the lanceolate pointless scale ; bracts and 

 leaves narrow, about the length of the smooth or roughish culm. (C. cylindrica, 

 Schw., at least in part, Tuckerm., &c.) — Wet swamps, New England to Penn. 

 and southward, chiefly eastward. 



■*- -(- Fertile spikes globular or oblong, few-flowered. 



148. C. oligosperma, Michx. Sterile spikes 1 -2, slender; fertile spikes 

 1-2, densely 6 - 18-flowered, the lower on a very short stalk ; perigynia turgid 

 ovate (2-£" long), tapering into a short minutely toothed beak, not much longer 

 than the ovate awnless scale ; culm very slender ; leaves and bracts involute. 

 (C. Oakesiana, Dew.) — Wet borders of ponds, &c , E. Mass. to Pennsylvania. 

 Wisconsin, and northward, chiefly in cold or mountainous regions. 



* * Perigynia nerveless or nearly so : bracts mostly shorter than the culm. 

 *- Perigynia pointed with a very short smooth beak, minutely 2-toothed at the apex: 

 stigmas either 2 or 3 : fertile spikes 2 or sometimes one, dense, short, usually 

 brown-purple or purplish, the upper almost sessile, the lower short-pednnchd : ster- 

 Q M 20 



