208 FLORA. 



perigynia oblong, 3-angled, 5 mm. long; scales broadly ovate, green, 2-3 times 

 shorter than the perigynia. S. Mo. to Tex., N. Car. and Fla. June- July. 



92. Carex glaucodea Tuckerm. GLAUCESCENT SEDGE. (I. F. f. 762.) Sim- 

 ilar in habit to Carex grisea, but pale and very glaucous ; culms 1.5-5 dm. l n g- 

 Leaves 4-8 mm. wide; bracts foliaceous ; staminate spike sessile ; pistillate spikes 

 3-5, erect, densely flowered, the lower slender-stalked; perigynia oblong, 3-4 mm. 

 long, beakless, nearly twice as long as the scales. In open fields and meadows, 

 Mass, to Penn., 111., Va. and Ark. May-July. 



Pistillate spikes scattered, distant, long-stalked or the 2 upper ones close together and 

 nearly sessile. GRANULARES. 



Bracts elongated, mostly overtopping the spikes ; perigynia strongly many-nerved. 

 Basal leaves 3-6 mm. wide ; perigynia 2-3 mm. long. 93. C. granularis. 



Basal leaves 5-16 mm. wide; perigynia-i.5 mm. long. 93a. C. Shriveri. 



Bracts short, rarely overtopping the spikes ; perigynia obscurely few-nerved. 



94. C. Crawei. 

 Pistillate spikes close together and nearly sessile at the summit of the culm, or the lowest 



distant and stalked. 



Beak of the perigynium stout, 2-toothed ; plants glabrous. EXTENSAE. 



Leaves strongly involute ; perigynia brown, the beak shorter than the body. 



95. C. ex tens a. 

 Leaves flat, 2-5 mm. wide ; perigynia yellow when mature, 4-6 mm. long, the 



beak about as long as the body. 96. C.flava. 



Leaves flat, 2 mm. wide or less ; perigynia dark green, 2 mm. long, the beak 



one-half as long as the body. 97. C. viriditla. 

 Beak of the perigynium short, entire or none ; leaves, or their sheaths, more or less 

 pubescent. PALLESCENTES. 



Perigynia faintly few-nerved, beakless. 98. C. pallescens. 



Perigynia strongly many-nerved, cylindric-beaked. 99. C. abbreviata. 



23. Carex granularis Muhl. MEADOW SEDGE. (I. F. f. 763.) Glabrous, 

 tly glaucous ; culms slender, smooth or nearly so, 1.5-6 dm. long. Leaves 

 3-6 mm. wide, the basal shorter than the culm ; bracts similar ; staminate spike 

 sessile or short-stalked ; pistillate spikes 3-5, erect or slightly spreading, 1-3 cm, 

 long, 4 mm. thick, many-flowered, stalked or the upper sessile perigynia ovoid, 

 strongly many-nerved, 2-3 mm. long, with a short, bent or nearly straight beak ; 

 scales ovate, acute or cuspidate. In moist meadows, N. B. to Ont., Manitoba, Fla. 

 and La. May-July. 



93a. Carex Shriveri Britton. Basal leaves broader, 5-16 mm. wide, glau- 

 cous; spikes smaller and narrower; perigynia 1-1.5 mm - l n g> narrower, the beak 

 slightly bent. N. Y. and Penn. to Wis. and Va. (C. granularis Shriveri Britton, 

 I. F. I: 322.) 



94. Carex Crawei Dewey. CR AWE'S SEDGE. (I. F. f. 764.) Glabrous ; 

 culms stiff, 7-40 cm. tall. Leaves rather stiff, 2-4 mm. wide, shorter than the 

 culm; the bracts similar; staminate spikes 1-3, long-stalked; pistillate spikes 1-4, 

 cylindric, erect, 1-2.5 cm. long, 4-6 mm. thick, the lowest often borne near the 

 base ; perigynia ovoid, usually resinous dotted, 2-3 mm. long, tapering into a short 

 entire beak; scales obovate or oval, acute or cuspidate, shorter than the perigynia. 

 In meadows and on banks, Quebec to Man., Penn., Tenn. and Neb. May-July. 



95. Carex extensa Gooden. LONG-BRACTED SEDGE. (I. F. f. 765.) Gla- 

 brous; culms stiff, 2.5-5 dm. tall. Leaves 2-4 mm. wide, involute, erect, shorter 

 than the culm; lower bract similar, much exceeding the spikes; staminate spike 

 sessile; pistillate spikes 1-3, erect, oblong, densely many-flowered, 10-16 mm. 

 long, about 6mm. thick; perigynia ovoid or ovoid -oblong, brown, 3 mm. long, 

 many-ribbed, tapering into a short 2-toothed beak; scales ovate, acute, shorter 

 than the perigynia. Borders of salt meadows, Coney Island, N. Y., and near 

 Norfolk, Va. Naturalized from Europe. June Aug. 



96. Carex flava L. YELLOW SEDGE. (I. F. f. 766.) Glabrous, yellow- 

 green; culms slender but stiff, smooth or nearly so, 2-6 dm. tall. Leaves 2-5 mm. 

 wide, flat; lower bract elongated, spreading or ascending; staminate spike ; pistil- 

 late spikes 1-4, oblong, erect, densely flowered, 6-12 mm. long, about 6 mm. thick; 

 perigynia yellow, spreading or deflexed when mature, 46 mm. long, several- 

 nerved, the subulate 2-toothed beak about as long as the body; scales acute or sub- 

 acute, shorter and narrower than the perigynia. In swamps and wet meadows, 



