406 North American Cyperacea. 



Hab. Pennsylvania to Arctic America! and Rocky Moun- 

 tains ! 



71. C. ovATA, Rudge, in Linn, trans. 8. p. 96. t. g. f. 1; 

 Dewey ! car. I. c. 28. p. 273. 



Hab. Newfoundland, Rudge; Rocky Mountains, T. Drum- 

 mond ! 



1 1 Pislilliferous at the summit. 



72. C. squarrosa, Linn. ; Willd. sp. 4. p. 215 ; SchvJ. 

 4' Torr. ! car. I. c. p. 209. t. 24. f. 2. 



C. typhina, Miclix. ! fl. 2- p. 169. 



Hab. Canada.^ to Georgia! — This species frequently oc- 

 curs with a single spike. 



73. C. atrata, Linn. ; ScKkuhr, car. f. 77 ', Schw. Sf 

 Torr; ! car. I. c. p. 320. 



Hab. Rocky Mountains, Dr. James ! ^ T. Drummond ! ; 

 Arctic America, Cajpt. Parry ; White Mountains of New 

 Hampshire, Nuttall. — The specimens from the Rocky Moun- 

 tains differ slightly from the European plant in having a more 

 distinct beak to the fruit, with a more evidently bidentate ori- 

 fice. They approach C. Magellanica, but seem to be only a 

 variety of the former species. 



74. C. MEDIA, R. Brown, in Rich. app. to FranM.journ. 

 ed. 2. p. 35. 



Hab. Woody region of Arctic America, Dr. Richardson. 

 — This species we have not seen. 



75. C. Mertensii, Prescott ■' in Bongard, veg. Sitcha, in 

 mem. acad. St. Petersb. I. c. p. 168 ; Devmj ! car. I. c. 30. 

 p. 62. 



C. Columbiana, De^oey ! car. I. c. 



