590 CLX. CYPERACEiE. Care2. 



sile erect ; ferig. oblong, obovate, very obtuse, glabrous, subtriquetrous, entire 

 at the orifice, subrostrate, twice longer than the acute glume ; st. 12 — 18' high, 

 erect, triquetrous, with subradical and pubescent leaves. — Pale green. N. Y. 

 "Pucker man. 



112. C. MiLiACEA. Muhl. 



J* Spike erect, slender ; 9 spikes2 — 3, long-cylindric, slender, Icose-flowered 

 below, nodding ; perig. ovate, triquetrous, glabrous, subrostrate, entire at the 

 orifice, longer than the oblong, emarginate or obcordate, awned glume ; st. 

 12 — 24' high, slender, scabrous ; Ivs. linear-lanceolate. — Yellowish-green. Wet 

 meadows; common. 



113. C. LIMOSA. 



9 Spikes 1 — 3, ovate or oblong, long-pedunculate, subloose-flowered, 

 smoothish, pendulous ; perig. elliptic, compressed, very short-rostrate, entire at 

 the orifice, about equal to the oblong and obtuse, or ovate, cuspidate glume ; sL 

 8 — 16' high, ascending, obtusely triquetrous, with subradical, flat and narrow 

 leaves. — Glaucous green. Marshes ; common. 



114. C. RARiFLORA. Smith. (C limosa. p. rariflora. Wahl.') 



9 Spikes about 2, linear, quite loose-flowered, long-pedunculate, nodding j 

 perig. ovate-oblong, triquetrous, depressed, equaling the ovate, subcircinate, 

 brown glume; st. 10' high. — Glaucous. White Mountains, N. H., Barratt. 



115. C. iBRiGUA. Smith. (C. limosa. /?. irrigua. Wahl.) 



Q Spikes 2 — 3, ovate-oblong, thickish, nodding; pmo'. roundish-ovate, 

 short-rostrate, subcompressed, shorter than the 'ovate-lanceolate, red-brown 

 glume ; st. near a foot high, longer than the fiat, subrecurved leaves ; glau- 

 cous. — J* Spike rarely Q at the summit, or Q spikes with stamens at the base. 

 Marsh. Bridgewater, N. Y., Gray ; also in marshes in Mass. and Mich., 

 CooLey. Rare. 



116. C. HYSTERICiNA. Willd. 



^ Spike rarely pistillate at the summit ; ^ spikes 2 — 4, oblong, cylindric, 

 attenuate, subdistant, long-bracteate, nodding, rarely sheathed ; perig. ovate, 

 inflated, subtriquetrous, nerved, bifid, glabrous, twice longer than the oblong, 

 emarginate, submucronate glume ; st. 12 — 24' high, scabrous above, with long, 

 linear-lanceolate leaves. — Yellowish green. Wet places ; very common. 



117. C. PSEUDO-CYPERUS. 



J* Spike cylindric and elongated ; 9 spikes 3 — 4, cylindric, long-peduncu- 

 late, rather remote, recurved-pendulous, with long and leafy bracts; perig. 

 ovate, lanceolate, bidentate, reflexed, and a little shorter than the ovate-lance- 

 olate or setaceous glume. — Common about ponds and ditches. It is smaller in 

 all its parts than C. comosa, Boott; and, besides, the fruit of the latter is 

 deeply and v/idely bifurcate, and its glume is hispid or ciliate. The two have 

 been confounded in our country, though long known. 



118. C. eoMosA. (C. furcata. Eil. C. Pseudo-cyperus. \st edit.) 



J* Spike long and slender, rarely pistillate above ; 9 spikes 2 — 5, long- 

 cylindric, pendulous, thick, dense-flowered, with very long and leafy bracts ; 

 perig. ovate-lanceolate, acuminate, rostrate, 2-forked, reflexed, triquetrous, gla- 

 brous, generally longer than the lanceolate, mucronate, setaceous glume ; st. 

 18 — 30' high, large, rough, with long and wide, rough leaves and bracts. — Plant 

 very glabrous and yellowish-green. Wet places about ponds and ditches ; 

 common. 



119. C. CooLETi. Dew. 



(^ Spike short and small, with oblong-lancelate glumes ; Q spikes 2 — 4, 

 cylindric, oblong, or ovate and short, rather dense-flowered, upper sessile, lower 

 yn very long, recurved peduncles ; perig. ovate-rostrate or oblong-lanceolate, 

 bifurcate, nerved, about equal to the ovale, awned, scabrous glume; st. filiform 

 and scabrous, subrostrate, a foot or more high, much shorter than the subradi- 

 cal, narrow leaves.— Light green. Marsh in Macomb Co., Mich., Cooley. 



120. C. scABRATA. Schw. 



9 Spikes 3 — 6, cylindric, subrecurved, remotish, long-pedunculate ; perig. 

 o^vate-oblong, subinflated, subbifid, rostrate, quite scabrous, longer than th*? 



