CYPERACE^E. 441 



HAB. Woods. Can. and N. S. May. Culm 1218 inches 

 high. Spike 1 1-2 inches long* Plant pale green. 



70. C.jkxuosa Muhl. : fertile spikes 4, remote, filiform, on nodding 

 peduncles ; fruit distant, alternate, oblong, acute at each end, rostrate r 

 bifid, twice as long as the ovate-mucronate glume. 



HAB. Wet meadows. Can. to Geor. June. Culm 18 24 

 inches high, sometimes procumbent. Leaves narrow. Spikes 2 

 inches long. Rachis at length flexuous. 



71. C. washingtoniana Dew.: sterile spike solitary, erect; fertile 

 spikes oblong, cylindric, subsessile, subremote, erect ; flowers some- 

 what scattered ; fruit oval, acute at each end, compressed, shortly 

 beaked, with a smooth and entire orifice, about equalling the ovate- 

 oblong, acutish scale. 



HAB. Damp grounds. White Mountains, N. H. June. Culm 

 a foot high, scabrous above. Fertile spikes 2 4 inches long, 

 loose flowered. Plant light green, spikes black or dark brown. 



72. C. halseyana Deic. : sterile spikes mostly 2, oblong, erect, ses- 

 sile, lower ones shorter ; fertile spikes remote from the sterile, solitary, 

 oblong, cylindric, on a long peduncle, erect, loosely flowered, (rarely 2, 

 distant and with the upper one staminiferous above ; ) fruit oval-ovate, 

 shortly beaked, subtriquetrous, inflated, nerved, smooth, orifice ob- 

 lique, a little longer than the ovate acutish scale. 



HAB. Meadows. Mass. May. Culm 1 2 feet high, purplish: 

 near the base. Fertile spikes 1 2. Plant dark green. 



$ Pistilliferons spikes on long peduncles, nearly destitute of sheaths. 



73. C. umbellata Schk. : cespitose ; fertile spikes mostly 4, ovate, 

 few-flowered, one sessile at the summit of the culm, the rest on rad- 

 ical peduncles and appearing subumbellate ; fruit ovate, acuminate- 

 rostrate, subpubescent, as long as. the ovate acuminate glume. 



HAB. Rocky grounds. N. Y. N. Eng. Penn. April, May. 

 Culm 1 6 inches high. Leaves longer than the culm. Spikes 

 35, 6 8 flowered. 



74. C. miliacea Muhl. : fertile spikes 3, slender and cylindrical, nod- 

 ding, slender and filiform ; fruit ovate, triangular, without nerves, 

 slightly rostrate, orifice entire, as long as the ovate-lanceolate glume. 



HAB. Wet grounds. Can. to Geor. May. Culm 15 inches high. 

 Spikes 1 2 inches long. 



75. C. pallescens Linn. : fertile spikes 2 3, ovate-cylindrical, dense, 

 at length somewhat nodding; fruit obovate-oblong, obtuse; sheath* 

 and culm pubescent. 



HAB. Wet grounds. Mass, and N. Y. Culm a foot high, eul- 

 cate. Fertile spikes 2 3, elliptic, thick, pale green. 



76. C. hystericina IViUd. : sterile spike pedunculate ; fertile 2 3, 

 thick, at length cernuous, upper one inclusely pedunculate, the rest 

 on exsert peduncles ; fruit ovate, inflated, subhorizontal, many-nenred, 

 rostrate, orifice bifid, twice as long as the oblong awned glume. 



