CYPERACE^. • 415 



White Mountains, N. H. Dewey. — Culm 10 inches high, glaucous. 



Few-Jlowered Mountain Sedge. 



80. C. Grayana Dev). : sterile spike oblong ; fertile spikes 2—3, oblong- 

 cylindric, rather loosely flowered ; perigynium ovoid-oblong, subtriangular. 

 subinflated, obtuse or acutish, entire at the orifice, longer than the oblong 

 obtuse scale. 



Sphagnous swamps. N. Y. and N. J. June. %.—Culm 6 — 16 inches high, 

 erect, triangular. Leaves about as long as the culm, glaucous. Torrey thinks 

 it identical with C. livida WUld., but according to Dewey it diflfers in several 

 respects. Gray's Sedge. 



fj-j-|- Spikes green. 



81 . C. Jlava Linn. : sterile spike on a short peduncle ; fertile spikes 2 — 4, 

 ovoid-oblong, rather distant, sometimes androgynous; perigynia ovoid, 

 densely imbricate, bidentate, with a curved and reflexed beak, shorter thaa 

 the ovate-lanceolate scale. 



Wet meadows. Can. to N. Y. June, %.—Culm 10—20 inches high, ob- 

 .tusely triangular, leafy. Whole plant yellowish green. 



Large Yellow Sedge. 



82. C. (Ederi Ehrh. : sterile spike on a short peduncle ; fertile spikes 2 — 4, 

 ovoid-oblong, nearly sessile, densely flowered ; perigynium ovoid-globose, 

 horizontal, with a subulate beak, a little longer than the ovate scale. 



Rocky banks. Hudson's Bay to N. J. June. %. — Culm 3 — 12 inches high, 

 obtusely triangular, leafy. Resembles C. jlava, but differs in having the spikes 

 more densely flowered and the perigynium much smaller. CEder's Sedge. 



83. C. palescens Linn. : sterile spike sohtary, on a short peduncle ; fertUe 

 spikes 2 — 3, ovoid-cylindric, on exserted peduncles, densely flowered, at 

 length somewhat nodding ; perigynium obovoid-oblong, obtuse, smooth, 

 about as long as the ovate scale. 



Wet grounds. Mass. and N. Y. May. %. — Culm a foot high, erect, slender, 

 and with the leaves Ught green and slightly pubescent. Pale Sedge. 



84. C Torreyi Tiickerman : sterile spike solitary, oblong, on a short pe- 

 duncle ; fertile spikes, 2 — 3, short, subsessile, erect ; perigynium obovoid, 

 obtuse, smooth, somewhat triangular, entire at the orifice, subrostrate, a 

 little longer than the acute scale. 



N. Y. Tuckennan.—Culm 12 — 18 inches high, erect, triangular. Plant pale 

 green and pubescent. Torrey's Sedge. 



85. C. striata Mich. : sterile spikes 1 — 2 ; fertile mostly solitary, rarely 2 

 and distant, cylindric-oblong, puncticulate, erect, loose ; perigynium oblong- 

 ovoid, subtriangular, nerved, rough-puncticulate, erect, with an oblique 

 conical beak, rather longer than the ovate acutish scale. C. Halseyana 

 Dew. 



Swamps. Mass. and N. Y. May. %. — Culm 12 — 18 inches high, triangular, 

 roughish. Leaves linear-lanceolate, dark green. Striated Sedge. 



86. C. granular is Muhl. : sterile spike sessile or short-pedunculate ; fertile 

 spikes mostly 3, oblong-cylindric, remote, dense, the two lowest peduncled ; 

 perigynium globose-ovoid, nerved, entire at the orifice, with a very short 

 recurved beak, twice as long as the ovate acuminate scale. 



