β. Albi-montana. Perig. ovate-oblong, acuminate of tapering above to a point longer and more convex, and sometimes beginning to curve back wards, with a less obtuse, or short acute glume Variable in length. - Ponds, White Mts. (Oakes, Tuckerman.) Blakei. Intermediate between the two forms preceding; fruit less acute, nearly elliptical. it3 glume obtuse and always shorter.- Harrison, Me. (Rev J. Blake).

55 C. aurea Nutt,Order CLV Cyperaceae The Sedges Part 16 2199 Spike short, cylindric, pedunculate; Order CLV Cyperaceae The Sedges Part 16 2200 spikes 3, oblong, loose-flowered, subpendulous, exsertly pedunculate, subapproximate, bracteate; perig. globous, obovate or pear form, obtuse, nerved, entire at the mouth, longer than the ovate, acute or short-mucronate glume; st. 3 - 10', slender, often subprocum-bent - Plant glabrous, green. Common in wet grounds, N. Eng, and westward and northward. (C. pyriformis Schw.)

56 C. Mitchelliana Curtis.Order CLV Cyperaceae The Sedges Part 16 2201 Spike sometimes with Order CLV Cyperaceae The Sedges Part 16 2202 fls. in the middle; Order CLV Cyperaceae The Sedges Part 16 2203 spikes 2 or 3, cyliudric, slender, loose-flowered, remotish, pedunculate, and the lowest short-sheathed; perig. ovate, acute, short-rostrate, entire at the orifice, about equaling the ovate, cuspidate glume; culm 15 to 20 high, acutely triquetrous, subscabrous above, leafy towards the base. - Wet places, N. Car. (Curtis).

57 C. torta Boott (I11. 156). Spikes cylindric, slender;Order CLV Cyperaceae The Sedges Part 16 2204 spikes 3 or more, very long,, rather loose-flowered, attenuated below, staminate at vertex, upper nearly ses-sile, lower pedunculate and diverging recurved; perig. ovate, convex, terete upwards, often acuminate, recurved, about equaling the narrow-lanceolate, rather obtuse, black glume: culm nearly 2f high, erect, rather slender, triquetrous, but scarcely rough-edged, leafy towards the base; color light green. - Wet places in most of the States. (C. acuta, β. sparsiflora, Ed. 1st.)

58 C. caespitosa.Order CLV Cyperaceae The Sedges Part 16 2205 Spike single, oblong, cylindric, sometimes 2, with oblong, black scales; Order CLV Cyperaceae The Sedges Part 16 2206 spike 2 - 3, short-cylindric (1' long), erect, obtuse, rather thick, remotish, bracteate, lowest one short-pedunculate; perig. ovate, obtuse, glabrous, entire at the orifice, scarcely rostrate, a little longer than the oblong, obtuse, black glume; st. 6 - 14', scabrous on the edge, leafy towards the base; lvs. flat. - Wet places, Ipswich, Mass. (Oakes) N. Y. and Michigan. (Caespitosa Good. nee. L.)

59 C. aperta Boott.Order CLV Cyperaceae The Sedges Part 16 2207 Spikes 1 or 2, cylindric, erect; Order CLV Cyperaceae The Sedges Part 16 2208 spikes 2 to 4, oblong cylindric, approximate above, sessile, stam. at apex, lowest somewhat remote and pedunculate; perig. ovate, roundish, short-rostrate, 2-toothed, short-pedicellate, shorter than the lanceolate acute glume; culm 1 to 18', rough-edged above. - Wet meadows, N. Eng. and far westward and northward. (C. acuta β. erecta Dew. Ed. 1st.)

60C. strictiot Dew.SpikesOrder CLV Cyperaceae The Sedges Part 16 2209 1 - 2, with oblong and blackish, acutish glumes; Order CLV Cyperaceae The Sedges Part 16 2210 spikes 2 - 3, cylindric, Order CLV Cyperaceae The Sedges Part 16 2211 above, and hence acutish, lowest short-pedunculate; perig. ovate, compressed, acute, glabrous, entire at the orifice, early falling off glabrous, a little longer than the oblong and acute rusty glume; st. a foot and more, triquetrous and rough on the angles, with reticulated filaments connecting the leaves towards the base; lvs. erect, close; whole plant glaucous except the spikes - Wet places, common. Nearer C. caespitosa than C. stricta.

61 C. stricta Goodon.Order CLV Cyperaceae The Sedges Part 16 2212 Spikes 1 - 2, cylindric, lower one sessile, and the scale rusty brown and obtuse; Order CLV Cyperaceae The Sedges Part 16 2213 spikes 2 - 3, long-cylindric, upper half Order CLV Cyperaceae The Sedges Part 16 2214 , lower longer, short-pedunculale, loosely-flowered below; perig. ovate-acuminate or elliptic, compressed at the orifice entire or slightly cmarginate, and its glume strongly ferruginous, the lower ones acute-lanceolate, the upper linear and obtuse, commonly longer and narrower than the perigynia; st. 2f with reticulated filaments connecting the leaves (Boott). - Wet places, as bogs, common.

62 C. angustata Boott.Order CLV Cyperaceae The Sedges Part 16 2215 Spikes 2 or 3, cylindric, slender; Order CLV Cyperaceae The Sedges Part 16 2216 spikes 1 to 4, cylindric, sessile, often nodding, the lowest short-pedunculate, the upper stain, at apex and hence tapering above or acute; perig. oval or ovate, acutish, entire at orifice, or short-beaked, scarcely veined, equaling or shorter than the narrow or oblong, subacute, variable brown glume; culm 2f, acutely triquetrous, scabrous, not robust, longer than the stiff, narrow, glaucous leaves. - Very common in largo bogs over the country. (C. acuta, ed. 1st. and Am. auth. not of L.)

63 C. aquatilis Wahl.Order CLV Cyperaceae The Sedges Part 16 2217 Spikes 1 - 4, erect, cylindric, lowest bracteate, the glume oblong, obtusish; Order CLV Cyperaceae The Sedges Part 16 2218 spikes often 3, cylindric, thick above, 1 - 2' long, sub-erect, short-pedunculate, densely-flowered; perig. elliptic, lenticular, rather small, entire, glabrous, protruded at the orifice, scarcely equaling the green, ovate, acutish glume; st. 20 - 30' high, rather obtuse-angled and scarcely scabrous. - In marshes and wet places, common.