North American Cyperacece. 405 



green squamaceous rudiment about the length of the nut. 

 This curious plant, therefore, seems in a manner to connect 

 Schoenoxyphium, N. ab E. with Uncinia, and to explain the 

 nature of the setaceous body in the latter genus. 



67. C. Fraseri, Sims, hot. mag. t. 1391 ; Pursh, ji. 1. 

 p. 39. 



C. Lagopus, Muhl.! gram. p. 265. 



Hab. On mountains of North Carolina, Fraser. This is 

 the only locality which is certainly known. Muhlenberg's spe- 

 cimens were obtained from, a German travelling collector of 

 plants, and are merely labelled — " Dcigher ivalli in der wil- 

 ternusJ''' 



6S. C. FiLiFOLiA, Nuttall, gen. 2. p. 204 ; Dewey ! car. 

 I. c. 12. p. 106, t. P. f. 50, not of Richardson, Schw. &f 

 Torr., Sec. 



Hab. Banks of the Missouri, Nuttall. — This species we 

 have never seen. 



1 1 Pistilliferous at the summit. 



69. C. URSINA, Dewey! car. I. c. 27. p. 241, t. 5. f. 8. 

 (excl. syn. Cfilifolia, Richardsoti.) 



Hab. Sea coast of Arctic America, Dr. Richardson ! — 

 The stigmas have fallen in our specimen ; but from the len- 

 ticular fruit it may be inferred that it had only 2 stigmas. 

 Prof. Dewey, however, describes the plant as tristigmatic. It 

 is not C. filifolia of Richardson, as Prof. Dewey supposes. 

 See Uncinia. 



2. Spikes two or more. 



* All androgynous. 



t Staminiferous at the summit. 



70. C. PEDUNCULATA, MuM. in Willd. sp. 4. p. 222 ; 

 Schhchr, car. f. 131. 



