CYPERACE5;. 425 



93. C. CAPILLARIS. L. 



Slaminate spike. small ; pistillate spilccs2~^3, ovate, oblong, about C-flowered, 

 loose-flowered, long and recurved pedunculate ; perig. oval, short-rostrate, 

 oblong, oblique at the orifice, longer than the oblong, ovate, obtuse glume; 

 stem 2—7 inches high, leafy at the base ; Ze«i-e5 narrow, long. Grows in tufts. 

 Pale green. Alpine regions of the White Mts. Rollins. 



94. C. EBURNEA. Boott. C. alba. p. setifolia. De?r. 

 Pistillate spikes 2 — 3, erect, 3 — G-flowered, ovate, with white, leafless 



sheaths, and the upper higher than the staminate spike; pcrig: ovate-globose, 

 rostrate, or slightly obovate, glabrous and brown in maturity, twice longer 

 than the white, ovate, hyaline glume ; stem 4—10 inches high, erect, with 

 subradical and bristle-form leaves. Pale green. Common. Abundant along 

 the banks of the Genesee. 



95. C. de'bilis. Mx. C. flcxuosa. Schk. 

 Staminate ipike erect, filiform ; pistillate spikes 3 — 4, filiform, loose-flowered, 



fiexuous, nodding, remotish, 1 — 2 inches long ; perig. oblong-lanceolate, sub- 

 triquetrous, alternate, rostrate, bifid, glabrous nerved, nearly twice longer 

 than the ovate-lanceolate glume ; stem 1 — 2feethigh, triquetrous and scabrous 

 above, leafy towards the base. Bright green. Moist woods and meadows. 

 Common. 



96. C ARCTATA. Boott. C. svlvatica. Dew. 

 Pistillate spikes 3 — 4, long and slender, loose-flowered, nodding and remote ; 



perig. ovate, triquetrous, lanceolate or long-rostrate, subventricose, bifid, 

 glabrous, little surpassing the ovate, membranaceous, mucronate glume ; stern 

 10 — 20 inches high, scabrous above, and leafy below. Pale green. In the 

 same situations as the preceding. Common. 



97. C. fle'xilis. Jiudge. C. castanea. Wahl. C. blephoriphora. Gray. 

 Pistillate spikes 2 — 4, ovate-oblong, cylindric, nodding; pcrig. ovate, sub- 

 conic, rostrate, bidentate, scarcely shorter than tlie ovate, obtusish, oblong 

 glume ; stem 12 — 18 inches high, erect, striate ; Ictvcs short, and shorter 

 helow ; leaves and Iructsciliaie . Bright green. Oneida Co., IS. Y. Gratj. 



98. C. Washingtoniana. Dcic. 



Staininale spike erect, with oblong and obtuse black glumes; pistillate 

 spikes 2 — 5, oblong, cylindric, subremote, erect, loose-flowered, black or dark 

 brown, subdistant, upper sessile ; pcrig. oval, acutish at both ends, glabrous, 

 Bhort-rostrate, entire at the orifice, about equaling the ovate-oblong, subacute 

 blackish glume with a white edge; stem a foot or more high, triquetrous, 

 Bubscabrous above. Light green. Seed distinctly triquetrous. Near summit 

 of Mt. Washington, N. H. Barratt. Isd'isUnctfi-om C.saxulilis, L. already 

 described as found on the White Mts. 



4, Piilillate spikes scarcely sheathed. 



99. C. PALI.ESCENS. L. 



Pisli'late Spikes 2 — 3, oblong, short, cylindric, distant, nodding towards 

 maturity ; pirisr. oval, obtuse, round, about equal to, or a little shorter than, 

 the ovate glume"; stcmQ> — 16 inches high, hardly erect; Iracls sometimes 

 transversely rugose. Plant often subpubescent, and of a light green. In dry 

 meadows. ' Common. 



100. C. UNDULATA. KuTtZe. 



Pistillate spikes 2. erect, ovate-oblong; ;3e?7V. oblong, round, triquetrous, 

 obtuse, striate, very short-beaked, bidentate, longer than the oblong, cuspidate, 

 mucronate glume; stem 12 — 18 inches high, erect, triquetrous, scaljrous ; 

 lower Iract transversely waved-plicate ; learrs pubescent. In the same situa- 

 tion as the preceding, and scarcely to be distinguished from it. 



101. C. Torre'yi. Tuckermun. 



Staminate .spike oblong, short pedunculate ; pistillate spikes 2 — 3, short, 

 cblcng, subsessile, erect ; pcrig. oblong, obovute, very obtuse, glabvcus, 

 LL* 



