179 C. ampullacea Good.Order CLV Cyperaceae The Sedges Part 28 2417 Spikes 2 or 3, cyl., erect; Order CLV Cyperaceae The Sedges Part 28 2418 spikes 2 or 3, lons-cyl., erect, quite dense, short-ped., bracteate; perig. ovate-globous, a little inflated, diverging, veined, glabrous, abruptly contracted to a small, round, bifurcate beak, a little longer than the lanceolate glume; culm 20 to 30', obtuse-angled, with long lvs. and bracts; light green. - Marshes over the country, not abundant

180 C. monile Tuckm. (E. t. 71.)Order CLV Cyperaceae The Sedges Part 28 2419 Spikes 2 to 4, long-cyl., slender, with long-lanceolate gls.; Order CLV Cyperaceae The Sedges Part 28 2420 spikes 2 or 1, long-cyl., short-ped., rather loose, tapering below sometimes and more loose, remote, erect, bracteate; perig. globous or ellipsoid, inflated, short-rostrate, bidentate, yellowish, many-veined, more than twice longer than the oblong-lanc. gl.; culm 15 to 30', erect; lvs. and bracts long, bright green. - Marshes, not abundant, N. Eng. to 0. and westward.

181 C. Olneyi Boott (t. 40.) Spikes about 3, cyl., slender, near; spikes

Order CLV Cyperaceae The Sedges Part 28 2421Order CLV Cyperaceae The Sedges Part 28 2422 commonly 2, cyl., thick, dense, yellowish, approx. more or less ped., the lowest tapering below, more lax at the base, often some nodding and bracted; perig. inflated-ovoid, with a short, cyl., scabrous, bifurcate beak, diverging, longer than the lane. gl.; culm 15 to 22', stout, obtuse-angled, rough above, shorter than the long, stiff, white-edged lvs. - R. I. (Olney).

182 C. Tuckermani Boott (t. 38).Order CLV Cyperaceae The Sedges Part 28 2423 Spikes 2 - 3, cylindric, lower ones sessile and short, with an oblong, acutish glume; Order CLV Cyperaceae The Sedges Part 28 2424 spikes 2 - 3, oblong, cyl., thick and large, scarcely pedunculate, subloose-flowered; perig. much inflated, ovate, large, conic, costate, bifurcate, all glabrous, nerved, twice longer than the ovate-lane. gl; culm about 2f, erect, scarcely scabrous; bracts and lvs. long, not wide; light green. - Wet places in meadows, common, and has been ranked under C. bullata. Distinguished from No. 181, by the short, smooth beak of its membranous, pellucid perig. as well as by its different Order CLV Cyperaceae The Sedges Part 28 2425 spikes.

183 C. vesicaria L.Order CLV Cyperaceae The Sedges Part 28 2426 Spikes about 3, erect, oblong; Order CLV Cyperaceae The Sedges Part 28 2427 spikes 2 - 3, cyl., erect, dense-flowered, alternate, long-bracteate; perig. ovate, oblong-conic, terete, inflated, rostrate, nerved, diverging, glabrous, bicuspidate, nearly twice longer than the oblong-lanc. gl; culm about 2f, shorter than the lvs. - Bright green. Marshes. Not common.

184 C. bullata Schk.Order CLV Cyperaceae The Sedges Part 28 2428 Spikes 3, erect, slender, cyl., with oblong-lanceolate glumes; Order CLV Cyperaceae The Sedges Part 28 2429 spikes 2 - 3, rather oblong, cyl., nearly erect; perig. ovoid-globous, inflated, glabrous, costate, with a long, scabrous beak, bifurcate, longer than the lane. gl.; culm 20 - 30' high, rather slender, triquetrous, scabrous above, leafy and shorter than the leaves. - Glabrous, light green. In wet meadows. Common. This is C. bullata as described in Sill. Jour., Vol. ix. p. 71, and named by Schk. from its (ball-shaped) globous perigynium, comporting with his fig. 166. Carey and others have adopted another form under that name, which hero follows, named from the inflation of the fruit.

185 C. physema Dew.Order CLV Cyperaceae The Sedges Part 28 2430 Spikes 2 or 3, cyl., slender, contiguous, the lowest bracteate; Order CLV Cyperaceae The Sedges Part 28 2431 spike 1, rarely 2, subrotund or oblong-cyl, thick, dense-flowered, remote, yellowish, the lowest ped., at length nodding, with a bract leafy and surpassing the culm; perig. turgid-ovate, with a long, cyl., scabrous beak, divaricate, inflated, glabrous, broader and longer than the lanceolate, acute, white-edged gl.; culm 12 to 24', slender, firm, shorter than the narrow, flat, firm, light green lvs. - N Eng. to Penn., in humid meadows. (C. bullata Boott, t. 39, nee Schk.)

186 C. oligosperma Michx.Order CLV Cyperaceae The Sedges Part 28 2432 Spikes several, sometimes one, erect, slender, long-cyl., with an oblong, obtusish gl.; Order CLV Cyperaceae The Sedges Part 28 2433 spikes 1 - 3, ovate, globular, sessile, distant; perig. few, ovate, inflated, acute, nerved, short-rostrate, entire at the orifice, glabrous, a little longer than the ovate-lane. gl.; culm 1 - 2f, scabrous above, leafy below; lvs. involute and rush-like, light green. - Marshes and lake borders, Can., N Eng., N. Y., Mich, and Ga.