OBDKB 154 CYPERACEJS. 877 



mote, recurved ; perigynia . 410, ovoid-triquetrous, obtuse, longer than the lance- 

 ovate glume ; leaves and bracts 1 2" wide, exceeding the 4 12' culm. Open woods. 



113 C. xanthosperma Dew. $ Spike email, sessile ; 8 spikes 4, distant, cylin. 

 dric, 1', dense, on long slender peduncles; perigynia oval-oblong, obtuse, 2", 

 striate, yellowish when ripe ; glumes 1", pointed. Yellowish, If. N. J., and South. 



114 C. conoidea Schk. Spikes all short-peduncled, 9 2 or 3, oblong, dense, erect, 

 6 10" ; perigynia oblong-conic, obtusish ; glumes ovate, awned. If. Uplands : com. 



115 C. grisea Wahl. $ Spike sessile; 9 spikes 4, oblong, remote, 6"; perigynia 

 oblong, feme longer than the ovate, awned glumes (<$", glumes 2") ; leaves light- 

 green, 23" broad. Culm Hf. Woods and meadows. 



116 . glaucodea Tuckm. Spikes short-stalked, t> 12", clavate, 9 34, cylin- 

 dric, dense ; perigynia 10 20, ovoid, obtuse, twice longer than the cuspidate glumes. 

 Plant glaucous. 6 10 7 ; leaves 2 4" wide. Mass, to Pa. 



117 C. granularis Muhl. $ Spike linear, sessile, 1'; 9 2 4, cylindric, j H', the 

 lower peduncle long; perigynia close, round-ovate, the point oblique, much longer 

 than the ovate-acuminate glumes. Glaucous, 8 '2W. Moist soils : common. 



/3. recta* has the perigynia ovoid, and with a straight point. 111. to La. 



118 C. juncea Willd. Spikes slender, ou filiform stalks, glumes obtuse; $ short; 

 9 spikes 2 3. loose; perigynia lanceolate, longer than the glumes; culm 1 l^f, 

 slender, longer than the slender rush-like leaves. Roan Mt., N. C. 



119 C. eburnea Boott. Delicate, erect, 410', the setaceous leaves much shorter; 

 spikes 23, very small (23"), with white, leafless sheaths, the 9 higher than the t ; 

 perigynia 36, obovoid, beaked, nerveless, " . Rocks, Vt., and West. 



120 C. pan i oca L. Spikes 2 4, I/, oblong-cylindric, stalked, tawny; perigynia 

 turgid-ovoid, the very short point oblique, longer than the obtuse glume. Light 

 green. If; bracts short. Mass. (Oakes). Wis. (Lapham). Pa. (Porter). 



121 C. livida Willd. Spikes 24, oblong-cylindric, pale, 8 10", the $ and lower ? 

 stalked ; bracts short ; perigynia oval, straight at the obtuse end, longer than the 

 obtuse glumes. Glaucous, > 16'. Swamps, N. Y., N. J., and North. 



122 C. tetanica Schk. Spikes 2 4, oblong-cyliudric, loose, 1', the $ and lower $ 

 long-pedunculate; perigynia ovoid to obovoid, apex oblique, longer than the sub- 

 mucronate glumes. Light green, 8 K/; bracts rather short. Wet uplands: rare. 



/?. WoofM) 9 spikes about 2, very loose ; glumes with broad scarious margins. 



123 C. JHeadii Dew. $ Spike slender, 1', $ oblong-cylindric, loose, 810", all 

 pedunculate ; perigynia oval, scarce equaling the tawny-edged, ovate-acuminate 

 glumes. Pale, erect, 816', the leaves and bracts short. Wet, O. to 111., and North. 



124 C. Crawel Dew. Spikes dense, 8 10", erect, $ stalked, compound at base, 9 

 3 5, remote, the lowest often long-stalked ; perigynia ovoid, acute, twice longer than 

 the ovate glumes. Erect, 615'. Spikes dusky green. N. Y., and West. Rare. 



125 C. oligocarpa Schk. $ Spike erect, 9", linear, stalked ; 9 3, remote, short- 

 stalked, 3- or 4-llowered ; perigynium obovoid, short-beaked, brown, equaling the awn 

 of the pale glume. Pale, 6 12', bracts long. Open woods and hedges : rare. 



126 C. Hitclicockiana Dew. $ Spike erect, linear, stalked ; 9 3, remote, short- 

 stalked, 5-10-flovvered ; perigynia oval, brown, acute below, the beak bent back, scarce 

 equaling the awn of the whitish glume. Subpubescent, 1 2f. N. Eng., and West. 



127 C. exteiisa Good. <$ Spike subsessile, 6 9" ; 9 3, oval to oblong, very dense, 

 the lower remote, stalked; perigynia spreading, the short straight beak 2-toothcd f 

 gl. much shorter. Rush-like, 1 2f, leaves and bracts rolled. Sands, L. I., Staten I. 



128 C. debllis MX. Spikes about 2', very slender; 9 35, nodding; perigynia 

 12 20, lance-linear, acuminate-beaked, twice longer than the oblong silvery glumes. 

 Bright green, 1 2f ; bracts equal the culm. Moist woods and meadows : common. 



/3. * pubera. Perig. pubescent, strongly veined, slightly bent. Pa. (Porter), ar.d S. 



129 C. aretata Boott. Like C. debilis, but with shorter bracts, longer stales, the 

 perigy iiinm ovoid, taper-beaked, I longer than the ovate-pointed glume. Common. 



130 C. SulIiTaiitii Boott. Spikes cylindric, 9 15", erect, 4 approximate, or a 5th, 



