412 



CYPERACEAE. 



VOL. I. 



155. Carex cherokeensis Schwein. 

 Sedge. Fig. 1022. 



Cherokee 



Carex recurva Muhl. Descr. Gram. 262. 1817. Not 



Huds. 1778. 

 Carex cherokeensis Schw. Ann. Lye. N. Y. i : 71. 1824. 



Glabrous, light green, culms smooth, erect, i-2 

 high, darkened, but not fibrillose at base, phyllopodic, 

 from stout rootstocks. Leaves thick, ii"-3i" wide, 

 strongly striate, shorter than culm, the similar bracts 

 shorter, long-sheathing; staminate spikes 1-3, pedun- 

 cled ; pistillate spikes 2-6, occasionally two from a 

 sheath, oblong-cylindric with 10-50 closely arranged 

 perigynia, 7i"-23" long, 3"-4i" wide, erect or some- 

 what drooping, widely separate, the lower long- 

 peduncled, the upper short-peduncled ; perigynia 

 ovoid, appressed-ascending, smooth, slightly inflated, 

 pale green, few-nerved, obtusely triangular, 2.\" long, 

 ii" wide, contracted into a short beak, scarious and 

 obliquely cut at orifice, at length bidentate ; scales 

 lanceolate, acuminate, hyaline-margined, usually 

 shorter than perigynia; stigmas 3. 



In the low country from southeastern Missouri to 

 Georgia, Florida and Texas. March-May. 



156. Carex Sprengelii Dewey. Long-beaked Sedge. Fig. 1023. 



Carex longirostris Torr. ; Schwein. Ann. Lye. N. Y. i: 71. 



1824. Not Krock. 1814. 

 Carex Sprengelii Dewey; Spreng. Syst. 3: 827. 1826. 



Glabrous, light green, culms very slender, roughish 

 above, erect, io'-3 high, strongly fibrillose at base. 

 Leaves flat, slightly scabrous, ii'-2" wide, usually not 

 exceeding the culm, the bracts similar, shorter, short- 

 sheathing; staminate spikes 1-3, slender-stalked, rarely 

 pistillate at the base; pistillate spikes 2-4, oblong- 

 cylindric, io-4O-flowered, -2' long, 3"~5" in diameter, 

 pendulous or erect, all filiform-stalked, or the upper one 

 nearly sessile; perigynia ascending or somewhat -spread- 

 ing, the body li'-ii" long, smooth, short-oblong, 

 slightly inflated, pale, strongly l-nerved on each side, 

 contracted into a very slender beak once to twice its 

 length, the beak obliquely cut, at length deeply biden- 

 tate ; scales lanceolate, long-acuminate or acute, scarious- 

 margined ; stigmas 3. 



On banks and in moist thickets, New Brunswick to 

 Alberta, south to Massachusetts, New Jersey, Pennsylva- 

 nia and Nebraska. May-July. 



157. Carex atrofusca Schk. Dark-brown Sedge. 

 Fig. 1024. 



C. atrofusca Schk. Riedgr. i : 106. p. Y. f. 82. 1801. 

 C. ustnlata Wahl. Vet.-Akad. Handl. 24: 156. 1803. 



Glabrous, smooth, culms obtusely triangular, slender, 

 erect, 4'-i2' high, short-stoloniferous. Leaves \"-\\" 

 wide, mostly clustered at the base, much shorter than the 

 culm, usually i'-2$' long; bracts sheathing, dark-tinged, 

 the blades short; terminal spike slender-peduncled, 

 staminate or gynaecandrous ; pistillate spikes 2 or 3, ap- 

 proximate or a little separate, filiform-stalked, drooping, 

 4"-9" long, 3$"-4i" thick, i5~3O-flowered; perigynia 

 ovate-oval, flattened, triangular, blackish, 2.\" long, less 

 than i" wide, rounded at base, appressed, abruptly very 

 short-beaked, the beak minutely bidentate ; scales 

 oblong-ovate, obtuse or acute, black with lighter mid- 

 rib, 'shorter than perigynia; stigmas 3. 



Arctic America, Labrador and Greenland. Also in 

 Europe and Asia. Summer. 



