CYPERACE^;. 426 



Bubtriquetrous, entire at the orifice, subrostrate, twice longer than the acute 

 glume ; stem 12 — 18 inches high, erect, triquetrous, with subradical and pub- 

 escent leaves. Pale green. N. Y. Tuckerman. 



102. C. milia'cea. Muh. 



Staminutc sjiikc erect, slender; pistillate^ — 3, long-cylindric, slender, loose- 

 flowered below, nodding; ferig. ovate, triquetrous, glabrous, subrostrate, 

 entire at the orifice, longer than the oblong, emarginate or obcordate awned 

 glume; stem 12 — 24 inches high, slender, scabrous; leaves linear-lanceolate. 

 Yellowish green. Wet meadows ; common. 



103. C. LIMOSA. L. 



Pistillate spikes 1 — 3, ovate or oblong, long-pedunculate, aubloose-flowered, 

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

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

 stem 8 — 1() inches high, ascending, obtusely triquetrous, with subradical, flat 

 and narrow leaves. Glaucous green. Marshes, common. 



104. C. RARiFLORA. Smith. C. limosa. /3. rariflora. JVakl. 

 Pistillate spikes about 2, linear, quite loose-flowered, long-pedunculate, 



nodding ; pcrig. ovate-oblong, triquetrous, depressed, equaling the ovate, 

 subcircinate, brown glume ; sfem 10 inches high. Glaucous. White Moun- 

 tains, N. II. Barralt. 



105. C. iREiGUA. Smith. C. limosa. /3. irrigua. Wakl. 

 Pistillate spikes 2 — 3, ovate-oblong, thickish, nodding; perig. roundisb- 



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

 brown o-lume ; stein near a foot high, longer than the flat, subrecurved leaves ; 

 glaucous. Staminate spike rarely pistillate at the summit, or pistillate with 

 stamens at the base. Marsh. Bridgewater, N. Y. Gray; also in marshes in 

 Mass. and Mich. Coolij. Rare. 



106. C. hysterici'na. JVilld. 



Staminatc spike rarely pistillate, at the snmmit ; pistillate spikes 2 — 4, 

 oblong, cylindric, attenuate, subdistant, long-bracteate, nodding, rarely sheath- 

 ed; pcrio-. ovate, inflated, subtriquetrous, nerved, bifid, glabrous, twice longer 

 than the oblono-, emarginate, submucronate glume ; stem 12 — 24 inches high, 

 scabrous above, with long, linear-lanceolate leaves. Yellowish green. Wet 

 places ; very common. 



107. C. Pseudo-Cype'rus. L. C. furcata. EIL 

 Staminatc spike long and slender, rarely pistillate above ; pistillate spikes 



2 — 5, long-cylindric, pendulous, thick, dense-flowered, with very long and 

 leafy bracts ; pc?v>. ovate-lanceolate, acuminate, rostrate, 2-forked, reflexed, 

 triquetrous, glabrous, generally longer than the lanceolate, mucronate- 

 setaceous, glume ; stem IS — 30 inches high, large, rough, with long and wide, 

 rough leaves and bracts. Plant very glabrous and yellowish gieen. Wet 

 places about ponds and ditches. Common. 

 188. C. Coole'yi. Dew. 



Stamina.te spike short and small, with oblong-lanceolate glumes ; pistillate 

 spikes 2 — 4, cylindric, oblong, or ovate and short, rather dense-flowered, 

 upper sessile, loircr on very long, recurved peduncles ; pcrig. ovate-rostrate 

 or oblong-lanceolate, bifurcate, nerved, about equal to the ovate, awned, 

 scabrous (jlume ; stem filitbrm and scabrous, subproslrate,a foot or more high, 

 much shorter than the subradical, narrow leaves. Light green. Marsh in 

 Macomb Co., Mich. Cooley. 

 109. C. scABR.iTA. Sclnr. 



Pistillate spikes '.i — G, cylindric, subrecurved, remotish, long-pedunculate ; 

 perig. ovate-oblong, subiiiilated, subbifid, rostrate, quite scabrous, longer than 

 the ovate-lanceolate, acuminate, short-bidentate, ciiiate glume ; stem 1 — 2 feet 

 hicrh, acutely triquetrous, rough above, longer than the leaves towards the 

 base. Bright green. Along brooks and streams. Conunon. 



