606 CYPERACE^E. (SEDGE FAMILY.) 



compact, short-oblong to cylindric, never exceeding 1' in length ; staminate 

 spike small and usually sessile ; perigynium ovoid, very strongly nerved, the 

 nearly entire short beak usually bent ; scale thin and pointed, about ^ the 

 length of the perigyuium. Moist grassy places; common. Var. HALE\XA, 

 Porter. Habitually lower and more slender ; radical leaves very broad (3 - 4") 

 and more glaucous ; pistillate spikes \' long or less, thinner ; perigynium a 

 half smaller, narrower. Wise, to Va. ; infrequent. 



61. C. Crawei, Dewey. Low, strict, stoloniferous (4-12' high); leaves 

 narrow; bracts scarcely exceeding the culm; spikes 2 - 4, scattered, the lowest 

 radical or nearly so, short-peduncled or the upper sessile, erect, compact, 9" 

 long or less; staminate spike generally peclnncled; perigynium ovate, usually 

 resinous-dotted, obscurely or few-nerved, very short-pointed, longer than the 

 obtuse or short-pointed scale. Moist places, N. Y. to 111. and Minn.; local, 



especially eastward. 



, * 5. *- 2. Extensa. 



C. EXTENSA, Gooden. Slender but strict, 1-2 high; leaves involute; 

 spikes about 3, the lowest remote and short-peduucled, the remainder approx- 

 imate and sessile, short (about \' long) and compact; perigynium ovate, very 

 strongly nerved, ascending, the short stout beak sharply toothed, longer than 

 the blunt brown-edged scale. Long Island and Coney Island, N. Y. ; Norfolk, 

 Va., McMinn. (Nat. from Eu.) 



62. C. flava, L. Very slender but strict and stiff, 1-2 high, yellowish 

 throughout ; leaves flat but narrow, mostly shorter than the culm ; stamiiiate 

 spike sessile or nearly so, usually oblique ; pistillate spikes 2-4, all contigu- 

 ous or rarely the lowest one remote, all but the lowest sessile, short-oblong or 

 globular, densely flowered, the lowest subtended by a long divaricate bract; 

 perigynium ovate, produced into a deflexed beak as long as the body, strongly 

 nerved, thrice longer than the blunt scale. Swales and wet meadows, N. Eng. 

 to L. Superior ; rare westward. (Eu.) Var. GRAmxis, Bailey. Smaller and 

 green, 6-12' high; leaves mostly longer than the culm; bracts erect; peri- 

 gynium straight or nearly so, the beak often rough. Grassy places, probably 

 common and generally distributed. 



Var. viridula, Bailey. Small and slender, very strict, green or greenish- 

 white ; leaves narrow, equalling or exceeding the culm ; bracts long and 

 strictly erect ; spikes very small or sometimes becoming cylindric, more closely 

 aggregated ; perigynium conspicuously smaller, the beak very short and 

 straight. (C. CEderi, last ed.) Cold bogs, N. Eng. to Peun., and northwest- 

 ward ; local. 



* 5. H- 3. Pallesce'ntes. 



- Perigynium icholl y beak/ess. 



63. C. pal!6scens, L. Slender, erect, 4' - 2 high, tufted ; leaves nar- 

 row, flat, the lower slightly pubescent, particularly on the sheaths ; spikes 2 - 

 4, ^' long or less, densely flowered, all but the upper one very shortly pedun- 

 cled, erect or spreading ; perigynium globular-oblong, thin and very nearly 

 nerveless, about the length of the cuspidate scale. Glades and meadows, 

 N. Eng. to Penn., Wise, and L. Superior; rare westward. (Eu.) 



++ <-* Perigynium very stout-beaked. 



64. C. Torreyi, Tuckerm. Stiff, l-l|high; culm and leaves thinly 

 pubescent ; spikes all sessile, very short ; perigynium obovate, very strongly 



