North American Cyperacece. 393 
of the spikelets, and agree very well with the European C. 
stellulata, 
28. C. CANESCENS, Linn. jl. Succ. (fide Wahl.); FL Dan. 
t. 285. 
C. curta, Good. ; Sclikuhr, car. f. 13. 
C. Richardi, Michx. 1 ji. 2. p. 170. 
a. Spikes large ; the whole plant silvery-glaucous when 
young. 
/3. Spikes small, few-flowered ; culm and leaves slender. 
Hab. Northern States and British America ! ; west to the 
Rocky Mountains ! 
29. C. MARINA, Dewey ! car. I. c. 29. p. 248. 
Hab. Sea coast of the Arctic Regions, Dr. Richardson! 
Very near C. lagojnna, Wahl.; but the fruit is not acuminate. 
30. C. Carltonia, Dewey! car. I. c. 56. p. 239. 
Hab. British America near Carlton House ! — This species 
is characterised by Prof. Dewey as tristigmalic, with the upper 
spike only androgyous, and is accordingly referred to the 
same section with C. hirsuta, &c. : we find, however, only two 
stigmas, a lenticular nut, and staminate flowers at the base of 
at least two of the spikelets. The habit of the plant, more- 
over, is entirely that of the present group ; and indeed though 
a taller plant, it is exceedingly near C. marina. The fruit of 
C. Carltonia is, however, somewhat broader and minutely^ 
striolate. 
31. C. LAGOPiNA, Wahl. fl. Laj)})., Sffl. Suec. 2. p. 591. 
C. leporina, Willd. {not o^ Linn.). 
C. Lachenalii, Schkuhr, car, f. 79. 
Hab. Rocky Mountains, T. Drummond! — This species, 
not previously known ass a native of North America, occurs in 
