416 



CYPERACEAE. 



VOL. I. 



167. Carex scabrata Schwein. Rough Sedge. Fig. 1034. 



Carex scabrata Schwein. Ann. Lye. N. Y. i : 69. 1824. 



Glabrous, strongly stoloniferous, culms sharply 

 triangular, weakly erect, very rough above, leafy, 

 i-3 high. Leaves very rough above, much elon- 

 gated, 2i"-o/' 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, j-2i' 

 long, 2i"-4" in diameter; perigynia greenish-brow-n, 

 iz"-2" long, nearly i" 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 lan- 

 ceolate, acute or short-awned, strongly nerved, 

 shorter than the perigynia; stigmas 3. 



In moist woods and thickets, eastern Quebec to On- 

 tario, Michigan, South Carolina and Tennessee. As- 

 cends to 4200 ft. in Virginia. Hybridizes with Carex 

 crinita. May-Aug. 



168. Carex rariflora (Wahl.) J. E. Smith. Loose-flowered Alpine Sedge. Fig. 1035. 



Carex limosa y 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, ob- 

 tusely triangular, 4'-i4' tall, smooth, from slender elon- 

 gated rootstocks. Leaves l"-ii" 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 ; pis- 

 tillate spikes i to 3, narrowly oblong, 3-i8-flowered, 

 3"-8" long, 2"-2$" in diameter, nodding or ascending 

 on filiform stalks; perigynia pale, ovoid-elliptic, thick, 

 slightly inflated, tapering at base, il" long, nearly i" 

 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, ob- 

 tuse or short-mucronate, about equalling and half en- 

 veloping 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. 



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 li" wide, usually shorter than the culm, invo- 

 lute; bracts linear-filiform, the lower \'-2\' long, its 

 auricles brownish; staminate spike solitary, long-stalked; 

 pistillate spikes i to 3, filiform-stalked and drooping or 

 the upper nearly erect, oblong, 5"-i3" long, 2|"-4" thick, 

 8-3O-flowered ; perigynia glaucous-green, broadly ovate, 

 strongly flattened and 2-edged, ii" long, i" 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 ist 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. 



