Y56 OsDEB 155.— CTPBaAOE^. 



leaves towards the base ; Iva. erect, close ; -whole plant glaucous except tbe ^ikes. 

 — ^Wet places, common. Nearer 0. casspltoaa than 0. striata. 



61 C. striota Gooden. S Spikes 1 — 2, oylindric, lower one sessUe, and the scale 

 rusty brown and obtuse ; ? spileeg 2 — 3, long-cylindric, upper half i , lower 

 longer, short-pedunculate, loosely-flowered below ; perig. ovate-acuminate or ellip- 

 tic, compressed at tbe orifice entire or slightly eraarginate, and its giume strongly 

 ferruginous, the lower ones acute-lanceolate, the upper linear and obtuse, commonly 

 longer and narrower than the perigynia ; St. 2f with reticulated filaments connect- 

 ing tbe leaves (Boott). — "Wet places, as bogs, common. 



62 C. angustata Boott. i Spikes 2 or 3, cylindrio, slender ; ? spikes 1 to 4, 

 cylindrio, sessile, often nodding, the lowest short-pedunculate, tho upper stam. at 

 apex and hence tapering above or acute ; perig. oval or ovate, aoutish, entire at 

 orifice, or short-beaked, scarcely veined, equaling or shorter than the narrow or 

 oilong, subacute, variable brown glume; culm 2f, acutely triquetrous, scabrous, not 

 robust, longer than the stiSj narrow, glaucous leaves. — ^Very common in largo 

 bogs over the country. (0. acuta, ed. 1st. and Am. auth. not of 1.) 



63 C. aquatilis 'Wahl. i Spikes 1 — 4, erect, cylindrio, lowest bracteate, tho 

 glume oblong, obtusish ; ? spikes often 3, cylindrio, thick above, 1 — 2' long, sub- 

 erect, short-pedunculate, densely-flowered; perig. elliptic, lenticular, rather small, 

 entire, glabrous, protruded at the orifice, scarcely equaling tlie green, ovate, aoutish 

 glume; st. 20 — 30' high, rather obtuse-angled and scarcely soabroi^s. — In marshes 

 and wet places, common. 



64 C. gynandra Schw. (B. t. 48.) i Spikes ono or more, lax, oblong, some- 

 times with a few 2 flowers ; S spikes about 3, oblong, cylindrio, pedicellate, nod- 

 ding, attenuated below, and more loosely flowered, often S at summit ; perig. ovate, 

 sub-inflated, short-rostrato, entire at the orifice, glabrous, about -J as long as tho 

 oblong, obtusish, scabrous-awned glume; st. 12 — 24' high, rough, triquetrous. — 

 Common in wet places. 



65 C. orinita Lam. (B. t. 4'!.) S i Spikes mostly 1, long, slender; spikes about 

 4, long-cylindric, densekj-flowered, recurved, with a. long, reclined peduncle ; perig. 

 ovate, suborbicular, obtusish, emarginate at the orifice, convex both sides ; glumes 

 terminated by a long, serrate point more than thrice tbe length of the perigynia ; 

 St. 20 — 42' high, recurved, rough-edged, pale green. Common in dry grounds. 

 (0. paleacea "Wahl. Ed. 1st.) 



66 C. maritima Tahl. (Schk. fig. 74.) Spikes long, cylindrio, suhpendulous or 

 recurved; $ spikes 1 to 3, pedunculate, bracted; perig. suborbicular, short-ros- 

 trate or apiculate, emarginate,. veined, rather close, much shorter than tho long- 

 awned, ovate-oblong, or emarginaie-awned glume; oulm 10 to 18', erect, with smooth 

 leaves. — Sea coast, Mendon, Mass. and northward (Carey). — This is the real 0. 

 paleacea Wahl. described by him in almost the same language as his next species, 

 C. maritima. 



67 C. salina "Wahl. (Schk. fig. 185.) Spilces cylindrio, erect; S spikes 2 or 3, 

 remotish, short-pedunculate, dense-flowered, leafy-bracted ; perig. elliptic, short- 

 apioulate, double-convex, entire at 'the orifice, shorter than the oblong, acute, shori- 

 awned glume; culm 8 to 16', leafy below, with long leafy bracts auriculate at their 

 base. — Salt marshes, Mass. to Aio. Am. 



II. Stigmas 3.— Achenium triquetrous. 



68 C. Friseri Sims. Spike oblong, 6 glume oblong, acutish ; 9 fls. at tbe base 

 in an ovoid or globous mas-s; perig. ovate or oblong, short-beaked, apex entire, 

 longer than the oblong, obtuse glume; oulm 8 to 10', flat, leafless; Ivs. 2 radical, 

 flat, wide, veined, with no midvein, pale or glaucous and longer than the culm. 

 — Tyger valley, Penn. (Muhl.), Mts. of N. Car. (Curtis). (C. lagopua MubL)— A 

 peculiar and striking plant. 



69 C. polytrichoides Muhl. Spike oblong, terminal ; perig. 3 — 8, oblong, aiter- 

 nate, erect, subtriquetrous, glabrous, emarginate, twice longer than the ovate and 



