136 PROCEEDINGS OP THE AMERICAN ACADEMY 



dioecious. Resembles C. prcBgracilis. — Sonora, Mexico, Dr. Geo. 

 Thurber. 



237. Carex marcida, Boott, Hook. Fl. Bor.-Am. 212, t. 213, 

 Often dioecious, or nearly so. Imperfectly understood. — Colorado 



to California and northward into British America. 



Var. DEBiLis. 



Small and slender (a foot or less high), the culms mostly somewhat 

 exceeding the very narrow and long-pointed leaves : head narrow, a 

 half-inch or less long: perigynium smaller, more contracted at the 

 base. — Harney Valley, Oregon, Howell. 



238. Carex teretiuscula, Goodenough, Linn. Trans, ii. 163, t. 19. 

 C. teretiuscula, var. major, Koch, Fl. Germ. 867. 



New England to Pennsylvania and northwestward to the Saskatche- 

 wan, Hb. Hooker ; S. California, Parish. 

 Var. RAMOS A, Boott, 111. 145. 



C prairea, Dewey, Wood's Bot. 1861, 750. 

 C. paradoxa, Boott, Hook. Fl. Bor.-Am. ii. 213. 

 Head slender and interrupted, often branched below ; perigynium 

 longer and usually thinner in texture than in the species. — From 

 New York to Oregon, Henderson. 



239. Carex alopecoidea, Tuckerman, Enum. Meth. 18. 



C alopecoidea^ var. sparsi-spicata, Dewey, Sill. Journ. viii. 350. 

 C cephalophora, var. maxima, Dewey, Sill. Journ. xliii. 92. 

 " Woods, W. New York to Pennsylvania, Michigan, etc.," Gray's 

 Manual. I have seen typical specimens only from Penn Y'^an, New 

 Y''ork, Sartwell, Ludlowville, New York, Lord, and Lansing, Mich. 

 Rare. 



240. Carex vulpinoidea, Michx. Fl. Bor.-Am. ii. 169. 

 C. microsperma, Wahl. Kongl. Acad. Handl. xxiv. 144. 

 C. multijlora, Muhl. ; Willd. Sp. PI. iv. 243. 



C. setacea, Dewey, Sill. Journ. ix. 61. 

 C scabj'ior, Sartw. Exsicc. no. 72. 

 C. vulpinceformis, Tuckerman, Enum. Meth. 9. 

 Throughout the States east of the Mississippi, especially northward, 

 and northward to Winnipeg, Bourgeau, and perhaps farther westward. 

 Exceedingly variable. 



Var. PLATYCARPA, Olney, Hall's PI. Texanje, 25 ; Bailey, Coulter's 

 Man. 392. 



O. vulpinoidea^ var. Drummondiana, Boeckeler, Linna3a,xxxix. 96. 

 Louisiana to Texas and Indian Territory. 



