Monograph of North American Varices. 321 



Culm about 8 inches high, erect, of a rigid habit, triquetrous, scabrous 

 above, leafy and tinged with purple below. Leaves erect, canaliculate, 

 longer than the culm, scabrous, much furrowed, hispid below ; outer 

 ones abbreviate. Spikes 3, clustered ; terminal one androgynous, sterile 

 at the base, which is abruptly attenuate downward ; upper part thick ; 

 lowest spike with a long leafy bractea at the base. Glumes projecting 

 beyond the fruit, lanceolate, mucronate. Fruit subovate, obtusely 

 triangular, not pubescent, with prominent whitish veins, green, rather 

 obtuse. 



Hab. Along the roads, in the pine forests of North Carolina, 

 near Greensborough, Guildford County. June. 



Obs. Grows in patches. This species is intermediate be- 

 tween C. hirsuta and virescens. Perhaps it is but a variety 

 of the former. 



46. Carex virescens, Muhlenberg. 



C. spiculis ternis, oblongis, erectis ; suprema pedunculata, 

 inferne staminifera j cseteris fructiferis, subsessilibus, bracte- 

 atis ; fructibus ovatis, obtusis, costatis, pubescentibus. 



C. virescens, Willd. sp. pi. iv. p. 251. Schk. car. t. Mrara. 

 f. 147. Purshfl. i. p. 39. Muhl. gram. p. 233. Dewey 

 car, 1. c. ix. p. 259. 



Culm 12-24 inches high, erect, slender, triangular, leafy. Leaves narrow, 

 erect, longer than the culm, scabrous on the margin, striate and con- 

 siderably pubescent : sheaths villous, the exterior ones often purplish at 

 the base. Spikes very generally 3, all approximate ; the terminal one 

 androgynous ; the rest fertile, nearly sessile, bracteate at the base. 

 The androgynous spike is linear below, cylindrical above. Sterile 

 glumes ovate, acuminate, white and pale brown, subciliate at the apex ; 

 fertile glumes ovate, mucronate, whitish, the carina scabrous and pro- 

 jecting, shorter than the fruit. Fruit ovate, when fully ripe obtuse, or 

 with an obscure point, compressed on the inner side, turgid on the outer, 

 distinctly nerved, strigosely pubescent, generally longer, but sometimes 

 a little shorter than the glume. 



Hab. In dry woods and on hill sides ; rarely in wet situa- 

 tions. Canada to North Carolina. Flowers about the 

 end of Mav. 



