ORDEH 154. CYPERACEvE. 375 



78 C. nlpina Swtz. Spk. 3 or 4, email, oval, close; bract longei than the calm; 



perig. round-obovate, longer than the black glume. Leaves radical. L. Superior. 

 T9 C. atrata L. Spk. 36, oblong-ovate, nodding, the lower stalked; perig. 



round-ovate, shorter than the dark oval glume. Bract long. White Mountains. 



80 . gracilllma Schw. Spk. 3 4, slender, 12 20", rather loose, drooping on long 

 filiform remote stalks; bract short; perig. oblong, longer than the oblong short- 

 awued glnme. 2f. Meadows. 



81 C. foriuosa Dew. Spk. 3 4, oblong, 8 12", on long, distant recurved pedun- 

 cles; perig. oblong, inflated, twice longer than the ovate acute gmme. Culm 2 3f, 

 bract shorter than the culm. Wet meadows. 



82 C. glabra Boott. 9 Spk. short-cylindric (10, spreading on capillary peduncles; 

 perig. elliptic-oblong, acute at both ends, nerved, twice longer (2") than the ovate 

 brown-edged glume. Very slender, erect, 18'. N. J., N. Y., Penn. 



83 C. Davisll Torr. Spk. 4, 10 15" long, rather loose, long-stalked, drooping wheu 

 ripe ; bracts much longer ; perig. oblong-ovate, nerved, acute, scarce equaling the 

 awned glume. Mass, to Wis., and S. 



84 C. prsecox Jacq. t Spk. clavate, erect; 9 spk. about 2, ovate-oblong, 69"; 

 perig. 6 12, round-ovate, downy, nearly equal to the ovate colored glume (which is 

 brown, edged with white). Culm 3 6', leafy at base. Rocky hills, E. Mass. 



85 C. RIchardsoull R. Br. $ Spk. clavate-oblong, erect ; 9 about 2, oblong, near, 

 suhsessile ; glumes wholly brown ; perig. ovoid-triquetrous, obtuse, nearly beak- 

 len, shorter than the green-midveined glume. 4 10'. Woods, N. Y. to 111., and N. 



S6 C. vestita Willd. Spk. all sessile, 9", $ cylindric, 9 2, ovoid-oblong; perig. 



ovate, short-beaked, hairy, exceeding the runty acutish glume. Culm 12 30', shart- 



aniclerl. leafy below. Common in we: places. 

 8T C. piibeacens Muhl. Spk. oblong. 812", rather loose, the lowest on a short 



ctulk , perig. lance-ovate, beaked, hairy, exceeding the cariuate, mucronate glume. 



Culm 10 20 7 ; leaves downy, flat, 510'. Meadows. 



88 C. nljjro-marKln". ti Schw. is probably a mere variety of No. 55, having tbe 

 glume? more extensively colored and the stigmas oftener 3. Hills, Pa., and S. 



89 . umbellata Schk. Dwarf; i spk. erect, 2 3", 9 ovoid, 2-^4, each on a sub 

 radical peduncle, green ; prig. 58, round-ovate, beaked, nearly equaling the lance- 

 acuminate glnme. Leaves 35', far longer than the spike. North. 



90 C. Kmmoiivii Dew. Spikes all sessile, green, s 4 5", 9 2 3, ovoid ; perig. 

 about 5, globou.-, beaked, equal to the pointed glume*. Culm filiform, 6 12', with 

 rery narrow leaves. Fields and hills : common. 



91 C. Pemisylvaiilca Lam. Spikes tawny-red, S 1' long, pedunculate, the 6 

 small, round, sessile, crowded, about2: perig. round-ovoid, 5 7, downy, short- 

 beaked, equaling the acuminate glume. Culm 4 12', erect, leaves long. Copses. 



92 C. Novae-Aiigllae Schw. Spk. purplish, sessile, i 3 4",. 9 2 4, small, near, 

 (txceptthe lowest), with bracts exceeding the culm; perig. :! 7, pyriform, short- 

 beaked, larger than the ovate glume. Slender. 412'. Open woods. 



93 C. variji Muhl. Spikes rusty-green, sessile, oval, 1 3. separated, the S slender, 

 (IP") and stalked, bracts very short ; perig. about 7, round-oval, abruptly beaked, 

 abt. ut equaling the pointed rusty-edged glume. Erect &-18. leafy at base.- Dry 

 woods. 



94 C. ft t va L. 9 Spk. oval, approximate, 24; perig. crowded, ovate, ribbed, re- 

 flexed with a long curved beak, longer than the lance-ovate glume. Plant 10 50', 

 yellowish green Cold, wet soils : common. 



95 C, CEderl Ehrh. 9 Spk. 35, oblong, small (3 5"), close, nearly sessile; perig. 

 globous, diverging with a short abrupt beak ; plant yellowish, 816', leaves ami 

 bracts erect. Shores, N. Eng., and West. (C. viridnla MX.) 



96 C. folliculatu L. 9 Spk. 24, capitate, dense, distant, the lower peduncle 

 exserted ; perigynia 4", lanceolate, nerved, tapering into a long beak, diverging, 

 twice longer than the long-awned glumes ; leaves lan'-e linear. Wet. 



