CAREX. CLX. CYPERACE^l. 587 



3-nerved. Bright green. Hedges and open woods, common, and one of the 

 first appearing species in the spring. 



84. C. CAREYANA. *'-* 



tf Spike erect, oblong, with oblong and obtuse glumes ; 9 spikes 2 3, 

 ovate, loose and few-flowered, distant, upper subsessile, all bracteate ; perig. 

 ovate, triquetrous, subinflated, nerved, acuminate, tapering at the base, smooth 

 and glabrous, entire at the orifice, twice longer than the ovate, mucronate glume ; 

 st. 1 2f high, erect, smooth, leafy towards the base; Ivs. linear-lanceolate. 

 Pale green. Woods, Auburn, N. Y., Carey, and in various places in Ohio; 

 closely related to C. plantaginea, and to C. Fraseri of the Southern States. 



85. C. ANCEPS. Schk. (C. plantaginea. Mutd.) 



9 Spikes 2 4, subfiliform, erect, attenuate, sparse-flowered, remote, with 

 a 2-edged peduncle, leafy-bracteate, upper one subsessile ; perig. oval-triquetrous, 

 tapering at both ends, short-rostrate, attenuate, glabrous, striate, excurved at 

 the apex, a little longer than the oblong-mucronate or ovate-acute glume ; st. 

 6 12' high, acutely triquetrous ; Ivs. radical, of medium width. Glaucous or 

 light green. Woods and hedges, common. 



/?. patulifolia. Dew. (C. anceps. Schk., fig. 195.) I/vs. radical, broad, many- 

 veined, narrower at the base ; sheaths with long and leafy bracts ; perig. longer- 

 rostrate. 



Y. angustifolia. Dew. (Schk. fig. 128.) St. a foot high ; Ivs. narrow, striate, 

 long ; perig. short-rostrate and much recurved. 



86. C. BLANDA. Dew. (C. conoidea. MuJd.} 



Q Spikes 2 4, oblong, cylindric, subsparse-flowered, alternate, approxi- 

 mate, bracteate, highest subsessile, the lowest on a long, 2-edged peduncle ; 

 perig. obovate, subtriquetrous, nerved, recurved at the apex, entire at the orifice, 

 little longer than the ovate, scabro-mucronate glume ; st. 8 12' high, trique- 

 trous, leafy towards the base ; Ivs. long as the stem. Pale green or glaucous. 

 Meadows and dry, open woods, common. 



87. C. CONOIDEA. Schk. (C. granularioides. Schw.~) 



$ Spikes 2 3, oblong, or ovate-oblong, remote, erect, rather dense-flowered, 

 bracteate ; perig. oblong-conic, obtusish, glabrous, nerved, subdiverging, entire 

 at the mouth, a little longer than the o ^ale-subulate glume ; st. 8 12' high ; Ivs. 

 towards the base, shorter than the stem. Bright green. Moist, upland mea- 

 dows, common. 



88. C. TETANICA. Schk., fig. 207. 



9 Spikes 2 3, oblong, loose-flowered, remote ; perig. obovate, recurved at 

 the apex, entire at the orifice, with an ovate glume, obtusish at the upper and 

 mucronate at the lower part of the spike ; st. 6 10' high, triquetrous, longer 

 than the flat and linear-lanceolate leaves. Light green. Upland meadows, rare. 



89. C. DIGITALIS. Willd. 



9 Spikes about 3, 4 10-flowered, oblong, distant, loose-flowered, lax and 

 recurved ; perig. ovate, triquetrous, alternate, nerved, glabrous, short and obtuse, 

 entire at the orifice, longer than the ovate-lanceolate glume ; st. 4 12' high, 

 triquetrous, shorter than the long, decumbent leaves. Pale green. 



tf. Van Weckii. Dew. Smaller; perig. more remote and smaller. Open, 

 moist woods, common. Has been mistaken for C. oligocarpa, Schk. ($ Muhl. 



90. C. RETROCURVA. Dew. 



9 Spikes 2 4. on long, filiform and recurved peduncles, bracteate, sub- 

 dense-flowered, short and thick, oblong ; perig. ovate, triquetrous, nerved, ob- 

 tusish, equaling the ovate, cuspidate glume ; st. 6 12' high, prostrate ; Ivs. 

 radical and wide. Glaucous. Open woods, rare. Has been considered C. 

 digitalis, Willd., but is different. 



91. C. OLIGOCARPA. Schk. 



9 Spikes 2 3, erect, 3 4-flowered, bracteate ; perig. obovate, roundish- 

 triquetrous, short-rostrate, entire at the mouth, longer than the oblong-mucro- 

 nate glume; st. 612' high; Ivs. flat and shorter towards the base; plant light 

 green. Open woods or hedges, rare. Differs from the following species in its 

 fruit and pubescence. 



50 



