364 Monograph of North American Carices. 



103. Carex filiformis, Lin. 



C. spicis sterilibus geminis ; fertilibus geminis, ovato-oblon- 

 gis, sessilibus, distantibus ; fructibus ellipticis, villosis, 

 bifurcatis, gluma ovato-lanceolata, subaristata aequalibus ; 

 foliis convolutis. 



C. filiformis, JVilld. sp. pi. iv. p. 303. Schk. car. t. K. f. 54. 

 Dewey car. 1. c. vii. p. 268. 



Culm 2 — 3 feet high, slender, obscurely triangular, smooth. Leaves prin- 

 cipally forming a large tuft about the root, 2 — 3 feet long, channelled 

 or convolute, ending in a long filiform point. Sterile spikes 2, on a long 

 common peduncle, the upper one elongated, cylindrical and slender, the 

 other sessile ; glumes oblong, acute, brown, with a green keel. Fertile 

 spikes usually 2, sometimes solitary, about two inches distant, oblong, 

 sessile, supported by filiform bracteae, densely fruited ; glumes dark 

 brown, with a green carina, acuminate. Fruit elliptical, densely vil- 

 lous, with a divergingly bifid short rostrum. 



Hab. In overflowed bog meadows, and in the borders of 

 ponds near Hope, New-Jersey. Philipstown in the High- 

 lands of New- York. Dr. Barratt. Westfield. Massachu- 

 setts. Mr. Davis. Near Williams College. Prof. Dewey. 



Obs. The North American plant agrees exactly with our 

 European specimens, and with Schkuhr's figure and de- 

 scription. 



104. Carex aristata, R. Brown. 



C. spicis fertilibus ternis quaternisve, cylindraceis, distanti- 

 bus, brevepedunculatis ; fructibus glaberrimis, nervosis, 

 rostro longissimo altebifido lsevi, laciniis patentibus ; gin- 

 mis omnibus aristatis ; foliis subtus vaginisque villosis. 



C. aristata, R. Brown, in Richard, app. Frank, nar. ed. 2. 

 p. 36. 



Hab. In the woody region of Arctic America. Dr. Rich- 

 ardson. 



