208 FLORA. 



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

 -Ik Piter than tin- perigynia. S. Mo. to Tex., N. Car. and Fla. June— July. 



92. Carex glaucodea Ttukerm. 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- 



4 8 nun. 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., \'a. and Ark. May-July. 



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

 marly sessile. ( rRANULAI 



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-1.5 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. 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. PALLESCENTES. 



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 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. long, 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, I-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 6 mm. 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, ert * t, densely flowered, 6 .12 mm, long, about 6 mm. thick; 



,i.i fellow, spreading or dellexed when mature. 40 mm. long, scveral- 



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

 hoiter and narrower than the perigynia. In swamps and wet meadows, 



