OP ARTS AND SCIENCES. 107 



Wet meadows and woodlands from Norway House, Richardson, 

 and Saskatchewan, Bourgeau^ to New England and N. Carolina. 



C. GKACiLLiMA X PUBESCENS {C SulUvantu, Boott, Sill. Journ. 

 xlii. 29). Columbus, Ohio, SuIUvant ; Yonkers, N. York, Howe; 

 Stanton, Delaware, Commons. An exact medium between the two 

 species, and growing with them wherever found. Sterile. 



137. Carex oxylepis, Torrey & Hooker, Monogr. 409. 



Much the aspect of C. venusta. — " Low ground, Florida and west- 

 ward," Chapman. Santee Canal, S. Carolina, Ravenel ; Chatta- 

 hoochee, W. Florida, Curtiss ; Alabama, Buckley; Louisiana, Hale^ 

 Carey ; Texas, Wriyhi, Hull. 



138. Carex Formosa, Dewey, Sill. Journ. viii. 98. 



Central and Western N. York; Michigan ; Belleville, Ontario, Ma- 

 coim. Evidently local. This species is credited to Massachusetts in 

 Gray's Manual. The only authority I know for its occurrence there 

 is a plant collected at Stockbridge by Prof. Dewey. I have seen in 

 Herb. Olney such a plant from Prof. Dewey, but it is C. gracillima. 



139. Carex Davisii, Sehweinitz & Torrey, Monogr. 326. 

 C. aristata, Dewey, Sill. Journ. vii. 277. 



C. Torreyana, Dewey, 1. c. x. 47. 

 Named for Prof. E. Davis of Westfield, Mass. — Wet meadows, 

 Massachusetts to Minnesota and Indian Territory, Butler, and south 

 to the mountains of Georgia, Chapman. 



F. Grisece. Terminal spike staniinate ; perigynium more or less turgid, often 

 glaucous, scarcely beaked, finely striate ; spikes erect. 



140. Carex grisea, Wahl. Kongl. Acad. Handl. xxiv. 154. 

 C. laxijlora, Schkuhr, Riedgr. Nachtr. 69, f. 141. 



C. grisea, var. minor, Olney, Hall's PI. Tex. 25. 

 Throughout the Northern United States east of the Mississippi ; 

 also Texas, Berlandier, Wright, Hall ; S. Utah, probably, Palmer, an 

 immature specimen. Florida ? 



Var. ANGUSTIFOLIA, Boott, 111. 35. 

 O. laxijlora. Ell. Sk. Bot. ii. 549. 



" C. cryptandra, Schwein. in Herb. Ell.," Olney in Hall's PI. 

 Tex. 25. 

 The prevailing Southern form of the species : very slender, the 

 leaves long and narrow : staminate spike peduncled ; pistillate spikes 

 looser flowered : perigynium more tawny, scarcely tumid, three- 

 angled and more or less pointed. It sometimes counterfeits G. oligo- 

 carpa (which see). — Sellersville, Penn., O. D. Fretz; Florida, 



