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 -m. 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. gramilaris. 



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 perigyriium stout, 2-toothed ; plants glabrous. EXTENSAE. 



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



95. C. extensa. 

 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. viridula. 

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

 pubescent. PALLKSCENTKS. 



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



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



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

 slightly 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 Out., 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. CRAWE'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, 23 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-BR ACTED 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 14, oblong, erect, densely flowered, 6-12 mm. long, about 6 mm. thick; 

 perigynia yellow, spreading or deflexed when mature, 4-6 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, 



