North American Cijperacea. 413 



Hab. British America ! — We here unite these two species, 

 because Sprengel considers them the same, and our American 

 specimens seem to differ but sHghtly ; and moreover the speci- 

 mens labelled C. siipina by Prof. Dewey accord in every respect 

 with a specimen of C. Schktihrii from Russia. The plant called 

 C. Schkuhrii by Prof. Dewey agrees with the figure in Schkuhr ; 

 but is not sufficiently mature for perfect determination. 



100. C. PUBESCENs, Muhl in Wllld. sp. 4. p. 281 ; 

 Schkuhr, car. f. 226. 



Hab. Canada ! to Pennsylvania ! 



P 



101. C. DASYCARPA, Muhl. ! gram. p. 236 ; Elliott., sk. 2. 

 541. t. 12. f. 4. 



Hab. North Carolina to Florida ! 



102. C. HouGHTONii, Torreii ; Dexvey ! car. I. c. 30. 

 p. 63. 



Hab. Lake La Biche, N. W. Territory, Dr. Houghton ! 

 — This species is most nearly allied to C. polymorpha, Muhl. 

 It is hardly necessary to remark that in accordance with well 

 established rules of botanical nomenclature, and the uniform 

 practice of the most accomplished naturalists, we adopt the 

 genitive termination wherever a species is named after its dis- 

 coverer. 



103. C. POLYMORPHA, Muhl. ! gram. p. 239. 



C. Halseyana, Deicey ! car. I. c. 11. p. 313. t. 7. f. 43. (bad) 



Hab. Massachusetts ! to Georgia ! 



104. C. HiTCHCocKiANA, Dfsiuey ! car. 10. p. 274. t, 3, 

 f. 17. 



Hab. Northern States to Kentucky ! — We have a variety 

 of this plant, much smaller in all its parts, both from Kentucky 

 and the Western part of the State of New York. 



