167. Carex Scabrata Schwein. Rough Sedge

Fig. 1034

Car ex scabrata Schwein. Ann. Lye. N. Y. 1: 69. 1824.

Glabrous, strongly stoloniferous, culms sharply triangular, weakly erect, very rough above, leafy, 1°-3° high. Leaves very rough above, much elongated, 2 1/2"-9" wide, the bracts similar but narrower and usually exceeding the culm; staminate spike stalked; pistillate spikes 3,-6, erect, the upper short-stalked, the lower sometimes spreading or drooping, narrowly cylindric, densely many-flowered, f-2i' long, 2 1/2"-4" in diameter; perigynia greenish-brown, 1 1/2'-2" long, nearly 1" wide, the body obovoid, slightly inflated, strongly nerved, papillose, abruptly contracted into a long beak with obliquely cut, at length slightly bidentate, hyaline orifice; scales lanceolate, acute or short-awned, strongly nerved, shorter than the perigynia; stigmas 3.

In moist woods and thickets, eastern Quebec to Ontario, Michigan, South Carolina and Tennessee. Ascends to 4200 ft. in Virginia. Hybridizes with Carex crinita. May-Aug.

167 Carex Scabrata Schwein Rough Sedge 1034

168. Carex Rarifldra (Wahl.) J. E. Smith. Loose-Flowered Alpine Sedge

Fig. 1035

Carex limosa r rariflora Wahl. Vet.-Akad. Handl. 24: 162.

1803. Carex rariflora J. E. Smith, Engl. Bot. pi. 2516. 1813.

Glabrous, culms very slender, rather stiff, erect, obtusely triangular, 4'-14' tall, smooth, from slender elongated rootstocks. Leaves 3/4'-l 1/4" wide, flat, green, shorter than the culm, the lower very short; bracts very short, purple at the base; staminate spike solitary, long-stalked, sometimes with a few pistillate flowers at the base; pistillate spikes 1 to 3, narrowly oblong, 3-18-flowered, 3"-8" long, 2"-21/2" in diameter, nodding or ascending on filiform stalks; perigynia pale, ovoid-elliptic, thick, slightly inflated, tapering at base, 1 3/4" long, nearly 1" wide, slightly 2-edged, very obscurely nerved, rounded at apex and essentially beakless, the orifice entire; scales broadly oval, purple-brown with a greenish midvein, obtuse or short-mucronate, about equalling and half enveloping the perigynia; stigmas 3.

In wet places, Greenland and Labrador to Hudson Bay, locally south to Mt. Katahdin, Maine. Also in Europe and Asia. Summer.

168 Carex Rarifldra Wahl J E Smith Loose Flowered  1035168 Carex Rarifldra Wahl J E Smith Loose Flowered  1036

169. Carex Limosa L. Mud Sedge

Fig. 1036

Carex limosa L. Sp. PI. 977. 1753.

Glabrous, glaucous, strongly long-stoloniferous, culms slender, rough above, sharply triangular, erect, 6'-2° tall. Leaves 1 1/2" wide, usually shorter than the culm, involute; bracts linear-filiform, the lower 1/2'-2 1/2' long, its auricles brownish; staminate spike solitary, long-stalked; pistillate spikes 1 to 3, filiform-stalked and drooping or the upper nearly erect, oblong, 5"-13" long, 2 1/2"-4" thick, 8-30-flowered; perigynia glaucous-green, broadly ovate, strongly flattened and 2-edged, I 1/4" long, 1" wide, few-nerved, tipped with a very minute entire beak, nearly as long as the ovate, usually dark-tinged, short-cuspidate or acute scales; stigmas 3.

In bogs, Labrador to British Columbia, south to Maine, New Jersey, Ohio, Iowa and Colorado. Also in Europe. Summer.

Carex macrochaeta C. A. Meyer {Carex podocarpa Bailey, Proc. Am. Acad. 197, and of our 1st ed., p. 312, not R. Br.) is omitted as probably not found in our range; the real Carex podocarpa R. Br. is also omitted for the same reason.