32 Rhode Island Plants. 



1051. Scirpus planifolius, Muhl. gram. p. 32. Torr. 

 cyp. p. 316. Woods, Cumberland! 



1052. S. Torreyi, (n. sp.) Scirpus mucronatus, Torr. ! 

 N. Y. State ft. II. p. 353, non Linn. Culm triquetrous, the 

 sides concave and nearly equal, leafy at the base ; spikes 2-4, 

 sessile, oblong, lanceolate, acute ; scales ovate, somewhat cori- 

 aceous, mucronate, smooth ; anthers acute, (not fringed at the 

 tip) ; bristles longer than the achenium ; style 3-cleft ; ache- 

 nium angular, convex externally, acuminate, fide Torr. MSS. 

 Marshy place, North Providence ! West Point, Prof. Torrey, 

 Prof. Bailey ; also near Boston. 



I have an Italian specimen of S. mucronatus Linn, for 

 which I am indebted to my excellent friend Prof. Gray. It 

 would appear that the diverging involucre, or continuation of 

 the leafless culm, the number and form of the spikes, the shape 

 and color of the scales, and the different achenium should dis- 

 tinguish S. mucronatus from the plant described by Prof. 

 Torrey in the New York State Flora. I am confident that 

 lovers of Cyperaceee will be pleased that our plant shall bear 

 the name of one who has studied so well and described so 

 accurately the North American species. It is due to my am- 

 iable friend Mr. Carey to observe, that he first pointed out fo 

 me the differences between the two plants under considera- 

 tion. 



865. Scleria reticularis, Michx. fl. II. p. 167. Torr. 

 cyp. p. 375, fide J. Carey, Esq. ! Scleria laxa, Prov. Frank- 

 lin Soc. Cat. non Torr. 



Carex. I gladly avail myself of the copious notes commu- 

 nicated to me by Prof. Dewey, who very kindly examined my 

 collections in this genus. 



1053. C. teretiuscula, Good, in Linn, trans. II. p. 163. 

 Schk. No. 19. Dewey ! in Sill. jour. VII. p. 265. Kunth 

 eninn. II. p. 390. Marshes, Providence ! 



1084. C. scirpoides, Schk. car. II. p. 19, No. ISO. Dewey! 

 in Sill, journ. VIII. p. 96. Marshy places, Smithfield ! to 

 South Kingstown ! 



