OP ARTS AND SCIENCES. 105 



Variable. The perigynium is sometimes short (the var. /3 of Boott) 

 and much like that of C. arctata (which see). — Moist meadows and 

 copses, Norway House, British America, Richardson, to Nova Scotia, 

 Macoim, and southward through New York and New England to the 

 mountains of N. Carolina and Georgia. 



Var. PUBERA, Gray, Man. 5th ed. 593. 

 C. venusta, var. /3, Boott, 111. 51. 



Perigynium elongated, much attenuated at both ends, hairy. (See 

 C. venusta.) — Bear Meadows, Centre Co., Pennsylvania, Porter, and 

 N. Carolina, Curtis, according to Boott. Imperfectly known. It 

 suggests C. Assiniboinensis. 



Var. PROLixA. 



C. dehilis, var. y, Boott, 111. 92. 



Leaves often very long and loose : spikes thicker and more densely 

 flowered : perigynium more inflated, much elongated (four to five lines 

 long) , with a very slender beak. — Florida, Chapman, to Louisiana, 

 Drummond, Hale, Langlois. 



C. DEBiLis X viREscENS ? Revere, Mass., G. E. Faxon. 



131. Carex venusta, Dewey, Sill. Journ. xxvi. 107, f. 62. 

 Distinguished at once from all forms of C dehilis by the dulness 



and thicker texture of the perigynium which is scarcely beaked but 

 rather narrowed gradually into a point, and the many-nei'ved or ribbed 

 character of the perigynium. — "Low banks of streams, Florida to 

 N. Carolina," Chapman. 



Var. GLABRA. 



a glabra, Boott. 111. 93. 

 C. venusta, var. y, Boott, 111. 51. 

 I can distinguish no permanent character to separate this from 

 C. venusta other than the smoothness of the perigynium. The ter- 

 minal spike is occasionally pistillate at the top in both this and the 

 species. — Oneida Co., N. York, Knieskern ; near Philadelphia, Smith ; 

 Cape May Co. and Camden Co., N. Jersey, " in sphagnous swamps, 

 growing with C. subulata, 0. folliculata, and Juncus asper" Parker ; 

 Mobile, Alabama, Sidlivant. Evidently rare. 



132. Carex cinnamomea, Olney, Proc. Am. Acad. vii. 396. 



Culm slender, eighteen inches to two feet high, smooth, exceeding 

 the narrow rough-margined leaves (which are barely more than a 

 line wide) : bracts leafy, bearing short sheaths : spikes an inch or inch 

 and a half long, the lower long-peduncled, the upper sessile or nearly 

 so, all erect, cinnamon -colored, compactly flowered or the lowest 



