606 CYPEKACE^. (sedge FAMILY.) 



compact, short-oblong to cylindric, never exceeding Tin 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 perigynium. — Moist grassy places ; common. — Var. HaleXna, 

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

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

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



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

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

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

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

 resinous-dotted, obscurely or fewruerved, very short-pointed, lougei- than the 

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



especially eastward. 



* 5. — 4-2. Exte'nsce. 



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

 spikes about .3, the loAvest remote and short-peduncled, the remainder approx- 

 imate and sessile, short (about V 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. ; isorfolk, 

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



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

 througliout ; leaves flat but narrow, mostly shorter than the culm ; staminate 

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

 ous or rarely tlie lowest one remote, all but tli« lowest sessile, short-oblong or 

 globular, densely flowei-ed, 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. Eug. 

 to L. Superior; rare westward. (Eu.) — Yar. grAminis, 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. 



Yar. 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. (Ederi, last ed.) — Cold bogs, N. Eng. to Penn., and northwest- 

 ward ; local. 



* 5. — -)- 3. Pallesce'ntes. 



■»-*• Perkjiinium ichol/y beakless. 



63. C. pallescens, L. Slender, erect, 4' -2° high, tufted; leaves nar- 

 roAV, flat, the lower slightly pubescent, particularly on the sheaths *, spikes 2 - 

 4, Y long or less, deiisely flowered, all but the upper oue 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 i-erij stout-beaked. 



64. C. Torreyi, Tuckerm. Stiff, 1-U°high; culm and leaves thinly 

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



