North American Cyjicracca. 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. Schhthrii from Russia. The plant called 
C. ScJikuhrii by Prof. Dewey agrees with the figure in Schkuhr ; 
but is not sufficiently mature for perfect determination. 
100. C. PUBESCENS, Muld. in Willd. sp. 4. p. 281 ; 
Schkuhr, cur. 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, Torrcy ; Dewey! car. I. c. SC 
p. 63. 
Hab. Lake La Biche, N. W. Territory, Dr. Houghton ! 
— This species is most nearly allied to C. polymo7-pha, Muhl. 
It is hardly necessary to remark that in accordance wdth 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, Deu-ey .' car. I. c. 11. p. 313. t. 7. f. 43. (bad) 
Hab. Massachusetts ! to Georgia ! 
104. C. HiTCHCocKiAXA, Dcivcy ! 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. 
