ORDER 154. CYPERACE^E. 373 



43 C. urida Schw. and Torr. Spkl. oblong-oval, large, close and dense, dry and 

 chaff-like in aspect ; perig. lance-linear, 4", clearly bideutate, gl. } as long. W. com. 



4-1 C. scoparia Schk. Spkl. 58, ovate, approximate, or often crowded in a head 

 perig. 3", lanceolate, longer than the lanceolate glume; culm 1824' high, leafy be 

 low. A very common sedge, in meadows everywhere. 



45 C. lagopodioides Schk. Spkl. 820, ovoid-clavate or globular with a club- 

 shaped base, approximate or crowded ; perig. lanceolate, nearly twice as long as the 

 ovate-lanceolate glume. Plant 2f, light green. Common. 



46 C. cristata, Schw. Spkl. 6 12, ovoid-globular, crowded into an oblong head; 

 perig. spreading, lance-ovate, pointed both ways, twice longer than the small lanceo- 

 late glume. Culm 2 3f, stout. Fields and meadows : common. 



47 C. mirabtlis Dew. Spkl. as in C. cristata; perig. broadly ovate, rounded at base, 

 acuminate at top, a little longer and broader than the gl. Rigid, 2f. Borders of fields. 

 (C. festucacea . Carey. C. straminea . Tuckm. C. cristata Boott.) 



48 C. straminea Schk. Spkl. about 6 (3 12), ovoid to oval or clavate-ovate, re- 

 mote or contiguous ; perig. oval or round-ovate, very fiat, broadly winged, abruptly 

 beaked, equaling or exceeding the much narrower glume. Common and variable. 



a . tijpicn* Spkl. 36, roundish ; perig. spreading, brownish : gl. much smaller 

 /3. finer a. Slender, with 3 6 ovate brownish remote spikes attenuate beiow. 

 y. ajitrfa, Spkl. 48, tawny, drooping; perig. long-beaked, thrice longer than gl. 

 $. fenttichrea, Spkl. 58, club-obovate, longer beaked, prominent, brownish, 

 f . hyalina, Spkl. about 6, large, pale ; perig. twice longer than the glume. W. 

 C. moniliformis. Slender ; spkl. about 4. remote, whitish, acute at both ends. E. 



49 C. silicea Olney. Spkl. 2 10, pale or silvery-yellow, distant, ovate; perig. or- 

 bicular, broadly winged all around, short-beaked, usually longer and broader than the 

 lanceolate glume. Lvs. involute. 8 20'. Sea shore, Maine to Delaware (Canby). 



60 C. adusta Boott. Spkl. globular with an acute base, large, silvery-green, close 

 or remote; perig. ovate to oval, veined, narrowly winged, acuminate, equaling the 

 glume in length and breadth. N. J., Penn. and N. (C. argyrantha, more delicate.) 



51 C. foe ii a Willd. Spkl. 4 8, pale, oval -oblong, acute, approximate; perig. oval to 

 obovate, appressed, broadly-winged, short-beaked, a little longer than the ovate- 

 lanceolate glume. Plant glaucous, 2 3f. Marshes, It. I. to Pa. 



52 C. alata Torr. Spkl. 48, ovate, large, close ; perig. roundish or obovate, close, 

 abruptly short-beaked, 3-veined on the back, broad -winged, some longer than tha 

 lanceolate white glume. Pale green, 3 4f. N. Y. toFla. 



53 C. Washingtonia Dew. Culm 6 18'; Ivs. flat; ? spk. 1 4, oblong-cylindric, 

 6" V, the lowest stalked ; gls. black, oval, covering vhe ovalapiculate nerved perig.; 

 lwer bract often elongated. White Mts., and N. (C. rigida . ? Bigelovii Gr.) 



64 C. rotundata Wahl. Culm If, slender; Ivs. channeled; ? spk. 12, oval or 

 roundish ; perig. ovate, acuminate, equaling the lanceolate brownish gl.; bracts sur 

 passing the culm ; $ spk. very slender, V. Moosehead L., Me. (Smith). 



55 C. Floridu.na Schw. Culms '2 10', slender, Ivs. ofien longer; $ spk. short, 

 sessile, ? spk. ovoid, 13. crowded; glumes oval, acute, edged with brown, covering 

 the obovate, s-hort-be:,ked perig. Often with solitary spikes on radical ped. S. 



66 C. leiitifiilaris MX. Culm 8 18'; Ivs. flat; $ spk. 1', ? spk. 2 5, i 1', wim 

 long bracts; perig. ovate-oval, yellowish, nerved, longer than the obtuse glume. 

 Spikes cylindric. Gravelly shores, Me., N. II., N. Y., and northward. 



57 C. aiirea Xutt. <j Spk. short ((5"), ? spk. 3 or 4, $ 1', loose-flowered, sprendlrg ; 

 pi'rig. oval, obtuse, yellow-brown, separate, exceeding the hyaline gl. Culm sleutL'r, 

 8-16' ; leaves flat, bracts exserted, leafy*. Wet. N. Eng., and W. 



68 C. Mitchellm.ua Curtis. <$ Spk. often ? in the middle ; ? spk. 2 3, cylindric, 

 slender, loose ; perig. ovate, acute, short-beaked, eq. the gl. 15 20'. Wet. N. Car. 



69 C. torta Uoott. Spikes cylindric, slender, 25': spikelets 2 or 3, loose below, re- 

 curved ; perig. lanceolate, the beak recurved or contorted, equaling the black i>*n dec' 

 obtuse lanceolate glume. Very smooth, 2 3f. Wet places. 



