108 PROCEEDINGS OP THE AMERICAN ACADEMY 



Chapman; "W, Louisiana, Hale, the perigynia not typical; E. Texas, 

 Hall 



141. Cakex glaucodea, Tuckerman ; Olney, Proc. Am. Acad. vii. 

 395. 



C. grisea, var. mutica, Carey, Gray's Man. 1848, 522. 

 C. Jlaccosperma, Gray's Man. 5th ed. 587 ; Boott, 111. t. 88 ; 

 not Dewey. 

 Very glaucous throughout : culm lax, six to eighteen inches high : 

 leaves flat, two to four lines wide : spikes nearly the same as in 

 C. granularis : perigynium ovoid-obloug (one and a half to two lines 

 long), mostly obtuse, mostly longer than the white awn-pointed scale. 

 — Distinguished at once from C. granularis and C. grisea by its 

 glaucousness. In aspect it is little like C. grisea. Its nearest ally 

 is O. Jlaccosperma, from which it is readily distinguished by its shorter 

 perigynium, awned scale, and narrower leaves. — Summit of Mt. 

 Holyoke and Mt. Tom, on trap rocks, Tucherman ; Wethersfield, 

 Conn., WrigJd; New Jersey, Austin, Knieskern, at Haddenfield, 

 Diffenhaugh ; Pennsylvania, at Easton and Bethlehem, Porter, woods 

 near Philadelphia, Smith, Lancaster Co., Fiot ; Delaware, at Wil- 

 mington, Canby, and Centreville, Commons; New Albany, Indiana, 

 Dr. Clapp. 



142. Carex flaccosperma, Dewey, Sill. Journ. 2d ser. ii. 245. 

 G. laxi flora, var. (?) mutica, Torr. Monogr. 414. 



C. xanthosperma, Dewey, Sill. Journ. 2d ser. xlii. 10 (Index 



Car.). 

 Somewhat glaucous : leaves very broad and flat (often a half -inch 

 wide) : perigynium two lines or more long, cylindrical, rust-colored 

 below, somewhat pointed, thrice longer than the obtuse or muticous 

 scale. — Florida, Dewey ; Red River, Louisiana, Hale ; Texas, Hall, 

 Wright. 



143. Carex pilosiuscula, Boeckeler, Flora, 1882, 61. 



" Cespitose : culm about afoot high, erect, slender but firm, obtusely 

 angled, smooth, leafy below: leaves remote, somewhat pilose, long, 

 narrowly acuminate (one to two lines wide), smooth on the margins, 

 the upper often longer than the culm : spikes more or less crowded 

 at the top of the culm, the lowest somewhat remote, strictly erect : 

 staminate spike yellow, sessile, many-flowered, oblong-linear^ and 

 acute (seven to nine lines long, one to one and a half lines wide) : 

 pistillate spikes three or four, olive-colored, cylindrical or oblong, 

 densely many-flowered (six to ten lines long and two and a half lines 



