CTPERACE^. (sedge FAMILl.^ 601 



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

 C. vcsicaria, var. cyliudracea, Dew.) — Swamps, Yates Co., New York, Saiiwdl, 

 to Illinois ■? 



144. C. monile, Tuckerman. Sterile spikes 3, rarely 2 or 4 ; /r77//e s/</ies 

 mostlij 2, rarely 3 or solitary, ci/Undraceous or ci/bndrka/. (l'-2^ long), mostly 

 slender, slightly or the lower when remote longer-peduneled ; perii/i/iuu (jlohidnr- 

 ovate, very vcntricose, shining, ubrupllj contracted into a ahort smooth beak, longer 

 than the ovate-laneeolate acute or scarcely pointed scale; culm slender il°-30 

 hi"h), sharply triangular, rough on the angles ; leaves narrow (l)arely 2" wide), 



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

 (C. vcsicaria, var. alpi'gena. Fries, of N. Eu. appears to be a form of this.) 



145. C. Olneyi, Boott. Resembles the two preceding and C. vcsicaria ; 

 the fertile Sjides denstr und thicker, short-cylindrical (1-1^' long); periyynia 

 (2i"-3"long) tunjid-ocutc, with the short beak rough-serrate at the apex and on 

 the awlshaped teeth ; the scales acute or bluntish ; leaves ( 1" - 2'' broad) rough. 



— Wet ground, Providence, Rhode Island, OIniij. 



146. C. Tuckermani, Boott. Sterik spikes about 2 ;/«V«/e spikes 2-3, 

 commonly 3, oblonij or cyLindr'icul , stout, somewhat approximate, on roiujh stalks, 

 tlie lowest often nodding ; peric/ynia shin'inij, 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 Schweinitz 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. bullkta, Schk. Sterile spikes 2 -ti; fertile spikes most frequently 

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

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

 drical ro^f//; 6erfA', 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, Tuckerni.,&c.) — W(ii swamps. New England to Penn. 

 and southward, chiefly eastward. 



-t- -i- Fertile spikes globular or oblong, few flowered. 



148. C. oligOSpdrma, 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 awnlcss scale; culm Aery slender ; leaves and bracts involute. 

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

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



* * Pengynia nerveless or nearly so bracts mostly .<<horter than the. culm. 

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

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

 brown-purple or. purplish, the upper almost sessile, the lower short-peduncled : ster^ 

 G M 36 



