Monograph of North American Caricej. 351 



ones nearly destitute of bracteac ; glumes obovate, mucronate, white 

 and membranaceous, carinate, shorter than fruit. Fruit ovate, broad 

 at the base, erect, imbricate, so as generally to conceal the rachis, with, 

 3 prominent nerves ; rostrum pyramidal, orifice slightly bifid. 



Hab. In Williamstown, Massachusetts. Prof. Deivey. Plain- 

 field in the same state. Dr. Porter. In the vicinity ,of 

 Montreal, Lower Canada. Dr. Holmes. Flowers in the 

 latter part of May. 



Obs. This plant is probably not uncommon in New Eng- 

 land. Compared with European specimens of C. sylvaiica, 

 it was scarcely found to differ in any respect. Color of 

 the plant light green. 



S7. CARExflexuosa, Muhlenberg. 

 C. spicis fertilibus subquaternis, remotis, filiformibus, pedun- 



eulis cernuis; fructibus distantibus, alternis, oblongis, 



utrinque acutis, rostratis ; bifidis, gluma ovata mucronata 



duplo longioribus. 

 C. flexuosa, Willd. sp. pi. iv. p. 297. Schk. car. t. Ddd. et 



Aaaa. f. 124. Purshf. i. p. 43. MuM. gram. p. 253. 



Elliott sk. ii. p. 550. Dewey car. x. p. 40. 

 C. debilis, Mich. jl. ii. p. 172. 

 C. tenuis, Rudge Lin. trans, vol. 7. p. 96. t. 9. f. 2. Rges 



Cyclop. No. 154. 



Culm a foot and a half or two feet high, frequently procumbent in age, 

 slender, leafy, somewhat scabrous. Leaves narrow, about as long as the 

 culm. Sterile cpike very narrow, on a filiform peduncle half an inch in 

 length, sometimes bearing one or two fertile florets at the summit; 

 glumes lanceolate, rather obtuse, carinate, white and green. Ferliis 

 spikes 3—4, an inch and a half or two inches long, 12— 18-flowcred, on 

 exsert filiform peduncles, an inch or more in length ; rachis at length 

 flexuous, and not entirely concealed by the fruit; glumes ovate-lanceo- 

 late, acutninate, half (lie length of the fruit, at length brown. Fruit 

 oblong-lanceolate, nerved, triquetrous, smooth, acuminate, at first 

 green, but becoming chesuut brown. 



47 



