155. Carex Cherokeensis Schwein. Cherokee Sedge

Fig. 1022

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

Huds. 1778. Carex cherokeensis Schw. Ann. Lye. N. Y. 1: 71. 1824.

Glab rous, light green, culms smooth, erect, 1° - 2° high, darkened, but not fibrillose at base, phyllopodic, from stout rootstocks. Leaves thick, 1 1/2"-3 1/2" 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, 7 1/2"-23" long, 3"-4 1/2" wide, erect or somewhat 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 1/2" long, 1 1/4" 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. 1: 71,

1824. Not Krock. 1814. Carex Sprengelii Dewey; Spreng. Syst. 3: 827. 1826.

Glabrous, light green, culms very slender, roughish above, erect, 10-30 high, strongly fibrillose at base. Leaves flat, slightly scabrous, 1 1/4'-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, 10-40-flowered, 1/2"-2' long, 2"-5" in diameter, pendulous or erect, all filiform-stalked, or the upper one nearly sessile; perigynia ascending or somewhat-spreading, the body 1 1/4'-1 1/2" long, smooth, short-oblong, slightly inflated, pale, strongly 1-nerved on each side, contracted into a very slender beak once to twice its length, the beak obliquely cut, at length deeply bidentate; 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, Pennsylvania and Nebraska. May-July.

157. Carex Atrofusca Schk. Dark-Brown Sedge

Fig. 1024

C. atrofusca Schk. Riedgr. 1: 106. p. Y. /. 82. 1801. C. ustulata Wahl. Vet.-Akad. Handl. 24: 156. 1803.

Glabrous, smooth, culms obtusely triangular, slender, erect, 4'-12' high, short-stoloniferous. Leaves i"-ii" wide, mostly clustered at the base, much shorter than the culm, usually 1'- 2 1/2' long; bracts sheathing, dark-tinged, the blades short; terminal spike slender-peduncled, staminate or gynaecandrous; pistillate spikes 2 or 3, approximate or a little separate, filiform-stalked, drooping, 4"-9" long, 3 1/2"-4 1/2" thick, 15-30-flowered; perigynia ovate-oval, flattened, triangular, blackish, 2 1/2" long, less than 1" 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.