CYPERACEAE 203 
the body.— Woods z thickets, various provinces, Fla. to Tex., Ill., Mich., and 
Vt.—Spr.—early su 
C. texensis | bo Culm very slender, 1.5-4.5 dm. tall: leaf- 
AT about 1 m spikes 4—7, 4—8-flowered, the upper aggregated, the 
lower separated: pa Mens um 3 mm. long, 1 mm. wide, green at maturity, the 
beak about half as long as the body.—Woods and thickets, inner part of Coastal 
Plain and adj. provinces, N. C. and Ga. to Tex., Mo., an nd S Ill. —BSpr. 
3. C. rosea Schk. Culm 2—5 dm. tall, slender: leaf-blades 1-2 mm. wi ^d light- 
ars spikes 4 —8, 4—12-flo Menu the upper Qu the low 
ted: perigynium light-gre 3-3 3.5 m ong, 1.5 mm. wide, nerve vele ess, Or 
obscurely nerved, the beak " dn of Ho E Woods pas 1 thickets, various 
provinees, Ga. to La., N. D., Que., and N. S.—Spr.-early s 
4. C. convoluta Mackenzie. Culm 3-6 dm. tall, ae leaf-blades deep-green, 
the sheaths somewhat septate- dou e spikes 4—7, 6—20-flowered, the upper 
i id ed, the lower strongly separate: perigynium 1.75 mm. wide, nerveless 
obse seurely nerved, the beak l4 length of the body.—Woods and x nds 
various provinees, Ala. to Kans., Man. oue and N. S.—Spr.-early su 
5. C. radiata (Wahl) Dewey. Culm very slender, weak, 2.5-5 dm. tall: leaf 
blades light-green, the sheaths not septate- -nodulose: spikes usually 4, the two 
upper kien Ex Eje s the two lower strongly separate: perigynium ‘at first erect 
at m or less strongly spreading, 1.5 mm. wide, nerveless or ob- 
idees ae d, "the beak half length of the body.—Woods and c no 
d and more northern provinces, N. C. and Tenn. to Mich., Que., and Me. 
Sum 
6. C. cephalophora Muhl. Culm peat 2-6 dm. tall, rough above: leaf- 
blades 2-4 mm. wide: head 8-15 m slong, subglobose, the PA densely 
Mena ae ed: perigynium 2.5 mm. long, ] 1.5 wide, narrowed into a bidentate 
beak much p ied than the body.—Dry open “woodlands, various provinces, 
Fla. to Tex n., Que., and Me.—Spr.-early sum 
C. Leavenworthii Dewey. Culm an oe erect or spreading, b m 
PN 1.5-5 dm. tall: leaf-blades 1-3 m ee 2 pls short-oblong, 8—15 
long, the spikes densely i e "cum m. long, 1.25—1.7 Pun mm. 
wide, nerveless or nearly so, the bidentate beak L a of the body. a 
open woodlands and en RSEN provinees, Ga. to Tex., Ont., and N. J. (in 
trodueed.)—Spr.-early s 
C. Muhlenbergii Schk. Culm slender but stiff and erect, rough above, 5-9 
aim, tall: leaf-blades 2-5 mm. wide, somewhat involute: hea d oblon ng, 2—4 mm. 
long, the spikes 4-10, distinct but. nm E acd braets Rd form, uod 
ous: seales e cuspidate o or short-awned: perigyni 
m 3.5 2m 
pud ribbed on both sides, iiec beak irc deeply MEER e^ in 
andy fields and dry rocky slopes in non- Midi regions, various provinces, 
Fla. "to Tex., Minn., and R. I.—Spr.-early su 
9. C. p d ie. Culm stiff, n rough above, — dm. tall: leaf- 
blades wide, little invotuie. head oblon ng, 1.5—4 em. long, d Spikes 
4—10 istinc but 3 ae aggregat s braets o d not conspicuous: scales 
cuspidat wned: perigynium 3 mm, long, 2.25 mm. wide, the beak 
rather short, de Tee. er. Mublenber gti enervis Boott. ]—Dry fields 
