C YPERA CEA E. 203 



perigynia oblong, green, faintly few -nerved, 2-3 mm. long, tipped with a minute 

 entire beak; scales brown-purple with lighter margins, obtuse, equalling or shorter 

 than the perigynia; stigmas 3. In pine-barren swamps, Conn, and N. J. to E. 

 Perm, and N. Car. May-July. 



63. Carex rarifldra J. E. Smith. Loose-flowered Alpine Sedge. (I. F. f. 

 733.) Glabrous, culms very slender, rather stiff, erect, 1-3 dm. tall, smooth, or 

 roughish above. Leaves 2 mm. wide or less, the lower very short; bracts subulate, 

 purple at the base ; staminate spike solitary, long-stalked; pistillate spikes lor 2, 

 narrowly oblong, few-flowered, 6-12 mm. long, 4 mm. in diameter, nodding on fili- 

 form stalks; perigynia pale, oblong, acute at each end, 3 mm. long, 1 mm. wide, 

 minutely beaked, few-nerved, the orifice entire; scales oval, purple-brown with a 

 greenish midvein, obtuse or mucronate, equalling or a little longer than the peri- 

 gynia; stigmas 3. In wet places, Greenland and Lab. to Hudson Bay, south to Me. 

 and to northern Minn. Also in Europe and Asia. Summer. 



64. Carex limosa L. Mud Sedge. (I. F. f. 734.) Glabrous; culms rough 

 above, 2.5-5 dm. ta ^- Leaves 2 mm. wide or less, shorter than the culm; bracts 

 linear-filiform ; staminate spike long-stalked ; pistillate spikes I or 2, filiform- 

 stalked, drooping, 1-2 cm. long, about 6 mm. thick; perigynia pale, oval, narrowed 

 at both ends, 3 mm. long, with a minute entire beak, several-nerved, about as long 

 as the oval cuspidate or acute scale; stigmas 3. In bogs. Newf. to the N. W. Terr., 

 south to Me., N. J., Iowa and Idaho. Also in Europe. Summer. 



65. Carex Magellanica Lam. Magellan Sedge. (I. F. f. 735.) Glabrous; 

 culms smooth or nearly so, 1.5-5 dm. tall. Leaves flat, 2-4 mm. wide, commonly 

 shorter than the culm, the lower bract similar; staminate spike solitary, rarely 2; 

 pistillate spikes 1-3, filiform-stalked, drooping. 8-16 mm. long, about 6 mm. in 

 diameter; perigynia biconvex, oval, pale, granulate-papillose, few-nerved, 2-3 mm. 

 long, with a very minute entire beak; scales long-acuminate or awned, dark green 

 or purplish brown, longer than the perigynia; stigmas 3. In bogs, Newf. to Mani- 

 toba, Me., Penn. and Mich. Also in Utah, Europe, and in southern S. Am. 

 Summer. 



66. Carex podocarpa R. Br. Long- awned Arctic Sedge. (I. F. f. 736.) 

 Glabrous ; culms slender, rough above, 2.5-5 dm. long. Leaves 3-4 mm. wide, 

 the lowest reduced to sheaths; lower bract similar to the upper leaves; staminate 

 spikes 1 or 2, stalked; pistillate spikes 2-4, cylindric, dense, 1-3.5 cm - l° n g> 6 mm. 

 in diameter, the lower often nodding ; perigynia elliptic-lanceolate, flat, about 

 5 mm. long, acute, faintly nerved, the orifice entire ; scales purple-black, ovate, 

 acuminate, longer than the perigynia, long-awned; stigmas 2 or 3. Arctic America. 

 Summer. 



67. Carex cryptocarpa C. A. Meyer. Hidden-fruited Sedge. (I. F. f. 

 737.) Glabrous; culm stout, 3-angled, rough above, 0.4-0.9 m. tall. Leaves smooth, 

 4-6 mm. wide; staminate spikes 2-4, stalked; pistillate spike 2-5, filiform-stalked 

 and drooping, 2-8 cm. long, 6-8 mm. in diameter; perigynia oblong or oval, 

 green, several-nerved. 3 mm. long, with a very short entire beak; scales purple- 

 brown, lanceolate, acuminate, 2 or 3 times longer than the perigynia; siigmas 2. 

 Arctic America from Greenland to Alaska. Summer. 



Carex cryptocarpa variegata (Derjer) Britton. Seldom over 3 dm. tall ; pistillate 

 spikes about 2, 1-2 cm. long ; scales ovate-lanceolate, acute, little longer than the peri- 

 gynia. Range of the species. 



68. Carex maritima Muller. Seaside Sedge. (I. F. f. 738.) Glabrous, 

 light green: culms 3-angled, smooth, or roughish above, 0.3-0.6 m. tall. Leaves 

 4-6 mm. wide, the lower bracts similar; staminate spikes 1-3, slender-stalked; pis« 

 filiate spikes 2-4, cylindric, often staminate at the summit, 2-8 cm. long, 8-12 mm. 

 thick, drooping on filiform stalks; perigynia oval to orbicular, pale, biconvex, less 

 than 2 mm. long, nerveless or with a few faint nerves, with a very short and 

 nearly entire beak; scales green, linear-subulate, ciliate, scabrous, 3-8 times as long 

 as the perigynia; stigmas 2. In salt meadows, Newf. and Lab. to Mass. Also in 

 Europe. June-Aug. 



69. Carex crinita Lam. Fringed Sedge. (I. F. f. 739.) Glabrous, 

 culms 3-angled. 0.5-1.3 m. tall. Leaves rough-margined, 6-10 mm. wide, the 

 lowest very short and sheathing; staminate spikes I or 2, stalked; pistillate s-pikes 



