ORDER 155. CYPERACE^E. 7C7 



oblong, retuse, mucronato gls. ; $ 3 to G, soon nodding, cyl., leafy-bracted. 3 

 above, lowest exsert-ped. ; perig. ovate-compressed, triq., glaucous, short -rostrate- 

 bifid, scarcely veined, about equal to the ovate-oblong, emarginate, muoronate or 

 awned brown gl. ; the awn extending beyond the perig. : culm 2 to 3 erect, stiff, 

 triq., striate ; Ivs. and bracts stiff, rough, often over-passing the culm ; color glau- 

 cous green, with dark spikes. Wet grounds. Penn. to Ga., La. and Ky. Apr.. 

 May. (C. glaucescens Ell.) 



/3. AXDRuGYXA Curt. Spikes 4 to 7, large, 3 to 4' long, upper one staminate at 



base, the others pistillate and in part staminate at apex. Wilmington, X 



Car. (Curtis). "An autumnal var.," flowers in Oct. 



162 C. lanuginosa Michx. $ Spikes 2, oblong, slender, erect ; $ spikes 2 3, 

 cyl., erect, dense-flowered, sometimes short-oblong and thick, subrostrate; perig. 

 ovate, short-rostrate, bicuspitate, subtriq., thick, pubescent and woolly, about 

 equaling the ovate-lane., awned gl. ; culm 12 24', nearly round below, \v\tl\flat, 

 linear-lane. Ivs. and bracts. Glabrous and yellowish-green. Wet places and 

 marshes, common. (C. pellita Muhl.) 



163 C. filiformis L. (B. t. 121.) $ Spikes 23, with oblong glumes; $ spikes 

 2 3, ovate, oblong, short-cyl., close-flowered, remotish. erect ; perig. ovate, villou?. 

 short-rostrate, bifurcate, about equaling the ovate, acute gl. ; culm 20 30'. erect, 

 slender, stiff, with convolute It's, and bracts. Pale green. Marshes, common. 



164 C. striata MX. (B. 1. 141.) $ Spikes 1 to 4, commonly 2, oblong, cyl., erect, 

 the lower sessile, shorter; $ spikes 2, rarely 1, long-cylc., erect, dense, with peds. 

 inclosed, upper often $ at apex ; perig. ovate, acuminate, inflated, rough-downy, 

 orifice bifid, scarce rostrate, twice longer than the acute, tawny gl. ; culm 14 20'. 

 erect, leafy-bracted, longer than the striato, lane. Ivs. Penn., N. J. to Fla. (C. 

 polymorpha, Ed. 1.) 



165 C. Houghtonii Torr. (B. t. 49.) f, Spikes 1 to 3, oblong, erect, purple to 

 pule, with oblong, obtuse, mucronato, white-edged gla. ; $ spikes 2 or 3, thickish. 

 oblong-cyl., leafy-bracted ; perig. ovate, inflated, short-rostrate, dirty brown, birur. 

 cate, veined, hispid-downy, nearly twice longer than the ovate, mucronate, white- 

 edged gl. ; culm about If, erect, stiff, triq., rough, about equaling the Ivs. Fla, 

 (Chapman!), also Lake La Biche, N. W. Ter. (Houghton). 



166 C. polymorpha Muhl. Var. 2. (B. t. 56.) $ Spikes 1 to 3, oftener 2, 

 oblong, erect, sessile, with oblong, obtuse glumes ; $ 2, sometimes 1, oblong- 

 cyl., erect, rather loose, upper staminate at apex, lower remote, exsert-ped. ; pe- 

 rig. oval-ovate, slightly inflated, subtriq., short-rostrate, orifico oblique, veined, 

 glaucous, a little longer than the ovate, reddish, white-edged gl. ; culm 2 to 20', 

 erect, stiff, triq., longer than the light green Ivs., -which are reddish at the root. 

 Sandy plains, Mass, to Penn. and W. K Y. (C. Halseyana, Ed. 1.) 



167 C. Cherokeensis Schw. (B. t. 78.) S Spikes 2 or 3, cyl., erect, the high- 

 est larger, pedunculate, rarely pistillate at base ; 2 spikes 3 to G. cyl., distant, often 

 stamiuato at apex, highest sessile, the others exsert-ped., nodding, loose, rarely 

 twin; porig. lance-ovate, glabrous, veined, compressed-triq., subinflated, tapering 

 into a whitish beak, much longer than the ovate, acuminate gl. culm 10 to 20' high, 

 leafy below and long as the Ivs. ; plant flaccid, grayish green. Ga., Fla., La and 

 Mo." (C. Christiana Boott.) 



168 C. paludosa Good. (Schk., fig. 103.) $ Spikes 2 or 3, cyl., erect, the 

 lower shorter, smaller, sessile ; $ ?pikes 1 to 4, cyl., erect, rather dense, not dis- 

 tant, alternate, lowest often long-stalked, scarcely sheathed, attenuate below, and 

 there loose-flowered, all bracted; perig. ovate, tapering into a short beak, biden- 

 tate, distinctly many-veined both sides, nearly equaling the narrow, cuspidate gl. ; 

 culm 18' to 2f, erect, scabrous above, longer than the light green Ivs. Near Bos- 

 ton (Wm. Boott). 



169 C. gigantea Rudge. (B. L 151.) $ Spikes 1 to 3; erect, cyl., slender, 

 near, the lower shorter, sessile, with ovate, acute, or lane. gls. ; $ spikes 2 to 4, 

 cyl., loose, staminate at apex, remote, the lower on long, cxsert stalks, often nod- 

 ding, with long, leafy bracts; perig ovate or globous, ventricous, abruptly con- 

 tracted into a long, slender, cyl. beak, veined, smooth, divaricate, in maturity much 

 longer than the lance-ovate, awned, white-edged gl. ; culm 18 to 30 to 36', stour, 

 longer thaa the broad, strong Ivs. Marshes, Ky. to S. Car. and La. 



