404 CYi-i: 



4. C. Pexnsylyanica, Lam. Puinxylvanian Sedge* 



Sterile rpiJ:es erect, commonly on a short stalk ; fertile spiJ.cs usually 2, ap 

 mate, nearly scs.-ile, ovoid, 4 to C-ften pncKM roundirh-ovoid, ■ 



short and abrupt minutely-toothed beak about the length cf the orate pointed 

 chestnut-colored scale. 



Dry woods and hillsides, oosamon. Culms tufted, 4 to 12 inches high, slender, 

 Tough above. Laves short. somewhat 



5-. C. ves-tita, Wilid. Short W 



Sterile spikes 1 or 2. the BvpermOst cylindrical, short- ■. 'ees 1 or 



2, approximate, sessile, ovoid or oblong: perigynia ovoid, downy, n^rT«d, short- 

 beaked, a little longer than the'e- 



Sandy soils, rare. Cuhns about £ feet high, tufied. Leaves - than 



theculms.ro 



6. C. TENTACULATA. Muhl. Lcvg-pointc 7 



Sterile spikes solitary; / ovoid, obkng, or cylindrical, densely 



flowered, approximate and diverging horizontally: perigynia crowj 

 flated, very leng-beaked, 2- toothed at the apex, longer than the long-subulate 

 scale. 



Wei meadows, common. Culm 12 to 18 inches huh, triangular, rough on the 

 angles. Leave* bright gve* . .culm. 



7. C. FNTUMESCENS, Radge. Swollen Sedge. 



Sterile spikes oblong, peduncle : r 2, ovoid. loosely 5 tD 8 -flowered, 



elosely approximated, sessile, or the lower on a very shortly exstrt^d peduncle; 

 perigynia ovoid, erect-spreading, tapering into a long beak, much longer than th» 

 ovate cuspidate 



Wet grounds, common. Culm slender, IS to 20 inches high, with 1 to 3 f.rtlls 

 spikes closely crowded together. Le i a tax :. . tgh on the margin. 



8. G. folliculata, L. TaU Tallow S 



Sterile spil:e solitary, small, short-stalked, or se- 19, 



Tery remote, the lower on ezserted [ eduncles ; periffynia erect-spreading, tapering 

 to a long point, exceeding the ovate white long-awned scale. 



Swamps. Culm 2 to i feet high, leafy. Leawes flat, smooth, '^inch wide, yellow* 

 ish. Brads long, foiiacecu-. 



9. C. lupulixa, Muhl. Hop-like Sedge. 



Sterile spikes short-peduncled; fertile spikes J cr 3, oblong-ovoid, erect, the uppsr 

 approximate, the lower on more cr less assarted stalks ; perigynia erect, inflexed, 

 long-beaked, much longer than the lanceolate awned scale. Tar. 1. PEDUUCDUTi, 

 Beck. Fertile spikes all peduncled, distant ; the 3 upper subumbellate. 



Swamps and wet meadows, not common. A coarse rob'. • 3 feet high* 



with very thick culms, long bright green leaves., and very thick spikes 2 or 3 inches 

 in length. 



10. C. YESICARIA, L. 



Siaminate spites 2 or 3; fertile spil;es mostly 2, oblong, or cylindrioal, stout, ap- 

 proximate, the upper sessile, the lower on a short rough stalk; perigjpua oblong- 

 ovoid, 17-nerved at base, 10-n«rved above, with a short tapering beak, brsadur 

 than the long pointed scale. 



Marshes, rare. Che?ter County, Parlingto». A bright green plant about 2 fett 

 high. Culm sharply angled and rough, shorter than the leaves. 



11. C. scabrata, Schweinitz. Rough Sedge. 



FtrtiU spiku 4 cr 5, cylindrical, erect, re thet distant, densely flowered, the lower 



