

CTPEKACK2E. (SEDGE FAMILY.) 531 



111. C. Pseildo-Cyperus, L. Fertile spikes (l|'-2i' long, and about 

 | wide) sometimes slightly compound at the base; perigynia shaped as the last 

 species, but with a shorter beak, and shorter lean spreading teeth ; scale about the 

 length of the mature fruit. Border of lakes and in bogs, New England to 

 Pennsylvania, and northward. Somewhat smaller than the last speeies in all 

 its parts. (Eu.) 



112. C. Ulirikta, Dew. Fertile spikes about 2, long-cylindrical, rather 

 dense, somewhat erect ; perigynia ovate-conical, with a long 2-forked beak, ribbed, 

 glabrous, about the length of the ovate bristle-pointed or long-awned scale ; 

 culm (about 2 high) rough. Shore of Lake Ontario, in" Monroe County, New 

 York, Dr. Bradley. (Having no specimen, the character is taken from Dewey's 

 description in Wood's Bot. The Georgian plant referred to it is to be ex- 

 cluded.) 



12. Perigynia much inflated, conspicuously many-nerved, smooth, with a long taper- 

 ing 2-toothtd beak: bracts leaf-like, much exceeding the culm: scales tawny or 

 white : staminate spike stalked, always solitary. LUFULINJE. 

 *= Bracks with very short or obsolete sheatlis. 



113. C. liystriciafia, Willd. Sterile spike often bearing a few fertile 

 flowers at the base or apex.} fertile spikes 2 - 4, oblong-cylindrical, densely flow- 

 ered, the uppermost on a very short stalk, the others on long stalks and at length 

 nodding, the lowest often very remote ; perigynia spreading, tapering from an 

 ovoid base into a long slender beak with sharp smooth teeth, longer than the awncd 

 scale. A variety with shorter ovoid spikes, the lowest very remote on a filiform 

 stalk, 4' - 6' long, with rather smaller perigynia not much longer than the awn, 

 is C. Cooleyi, Dew. Wet mead"ows ; common. Plant pale or yellowish 

 green, with fertile spikes f to 1^' long. Distinguished from No. Ill by the 

 more inflated, less diverging fruit, its beak longer and the teeth shorter; and 

 from No. 114 by the smaller nodding spikes, many-nerved perigynium, and the 

 longer and smooth teeth of the beak. 



114. C. tCBltaclllata, Muhl. Fertile spikes 2-3, ovoid, oblong, or cylin- 

 drical, densely flowered, approximate and diverging horizontally, the uppermost 

 sessile, the lower on short exserted stalks ; perigynia spreading, tapering from an 

 ovoid few- (about 10-) nerved base into a long slender beak with short minutely 

 serrulate teeth, much longer than the lanceolate awned scale. (C. rostrata, Mu1d. t 

 not of Michx.) Wet meadows ; very common. 



115. C. illtuiliesceiis, Budge. Fertile spikes 1-3, ovoid, loosely few- 

 (5-8-) floivered, closely approximated, sessile, or the lower on a very shortly 

 exserted peduncle ; perigynia erect-spreading, tapering from an ovoid 15-20- 

 nerved base into a long beak, slightly rough towards the apex. (C. folliculata, 

 Schk., Michx., not of L.) Wet meadows and swamps ; very common. Culm 

 slender, about 18' high, with the fertile spikes crowded compactly together: 

 perigynia 6" -7" long. 



116. C. Orayiiy Carey. Fertile spikes 2 (sometimes single), globose, densdy- 

 (15-30-) flowered, separate and distinct, on snort exserted peduncles ; perigynia 

 spreading and dc flexed, tapering from an ovoid 25 - 30-nerved base into a long 

 smooth and shining beak. Low meadows on the banks of the Mohawk and of 



