406 North American Cyperacecc. 
Hab. Pennsylvania to Arctic America! and Rocky Moun- 
tains ! 
71. C. OVATA, Rudge, in Linn, tratis. 8. p. 96. t. g. f. 1; 
Dewey ! car. I. c. 28. p. 273. 
Hab. Newfoundland, Rudge ; Rocky Mountains, T. Drum- 
mond ! 
+ t Pislilliferous at the summit. 
72. C. SQUARROSA, Limi. ; Willd. sp. 4. p. 215 ; Schw. 
&f 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. ; Schhikr, car. f. 77 ; Schw. Sf 
Torr. ! car. I. c. p. 320. 
Hab. Rocky Mountains, Dr. James ! c^' T. Dr7immond ! ; 
Arctic America, Ca2)t. Parry; White Mountains of New 
Hampshire, NuUall. — 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. MagcUanica, but seem to be only a 
variety of the former species. 
74. C. MEDIA, R. Broimi, in Rich. ajip. to FranM.joiirn. 
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, 
m 
mem. acad. St. Petersb. I. c. p. 168 ; Dewey ! car. I. c. 30 
p. 62. 
C. Columbiana, Deroey ! car. I. c. 
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