72 PROCEEDINGS OF THE AMERICAN ACADEMY 



S. Pennsylvania to Virginia and westward to Oliio, S. Illinois, 

 Nebraska according to Dewey, and Limestone Gap, Indian Territory' 

 Butler. ^' 



B. ^«omate, Carey, Gray's Man. 1848, 557. Terminal spike all staminate • 

 pistillate spikes long and cylindrical, mostly densely flowered; perigynium 

 broad and short, short-beaked, the orifice very slightly notched or entire 

 mostly granulate. — Tall species with rough leaves. 



34. Carex Joori. 



Culm two feet high, very sharply angled, rough: leaves narrow, 

 slightly carinate, rough on the margins, much surpassing the culm : 

 bracts sheathless, setaceous, very rough on the margins, the lower one 

 or two surpassing their spikes, the others much shorter : spikes about 

 six, cylindrical, densely flowered, one or two inches long, erect or 

 slightly spreading, all on slender rough peduncles an inch or two 

 long, the terminal distant and staminate : perigynium short-obovate, 

 nearly circular in cross-section, abruptly contracted into a short entire 

 and sharp beak half as long as the body, strongly many-nerved, granu- 

 late, somewhat inflated, dark-colored, squarrose, about as long as the 

 serrate awn of the hyaline scale: achenium triquetrous, broldly ob- 

 ovate or oval ; stigmas three. — Comite Swamp, near Baton Rouge, 

 La., /. F. Joor, Aug. 5, 1885. 



35. Carex scabrata, Schweinitz, An. Tab. 



Transition to the Granulares. — New England to South Carolina, 

 J. D. Smith, and Tennessee, Curtiss, and westward to Michio-an. 



36. Carex amplifolia, Boott, Hook. Fl. Bor.-Am. ii. 228, t. 226. 

 Culm stout (two to three and a half feet high), very sharply 



angled, rough above : leaves many, very broad (5-8 lines), rough on 

 the margins, usually exceeding the culm: bracts leaf-like, sheath- 

 less: pistillate spikes four to six, erect, the upper ones sessile, 

 the lower very short-stalked, all erect, one to four inches long, 

 slenderly cylindrical: perigynium elliptic, conspicuously few-nerved, 

 abruptly narrowed into a whitish beak, spreading, about as long as the 

 awn-pointed whitish narrowly purple-margined scale. — California, 

 Plumas Co., Mrs. BidweU, Mariposa Grove, Bolander 5011 ,• Oregon! 

 Hall., Howell, etc. ; N. Idaho, fide Boott. 



C. /T/r/rr, Tuckerman, Enum. Meth. 14. (Lrrs/owr/.rt', Fries, Summa, 70. Lanu- 

 ginosm and Scariosm, Carey, Gray's Man. 1848, 500.) A heterogeneous group 

 distinguished from the last by the longer and more deeply cut beak and by 

 the hairy perigynium. — The perigynium of C. striata is often smooth. C. 

 filifonnis and C. IJougktonn may be taken as types of the group. 



