216 CYPERACEAE 
4—12-flowered on erect peduncles: scales broadly ovate, acuminate or euspidate: 
perigynium ovoid- Dd Ma iud , minutely hispidulous, finely many-nerved, 
mm. long, taper abruptly beaked, the beak 1 mm. lon 
( ANTAIN-LEAF FS EDGE.) —Wo odi: ands, in ealeareous distriets, apparently avoid- 
ing strongly magnesian rocks, various provinces, N. C. t o Ill, Sask., and N. B. 
—Spr. 
ab C. purpurifera Mackenzie. Culm 2-4 dm. high, iar Seni bred. in dry- 
vid spike long- 
ing, the angles te eae Pe 3- ^ e: 
peduncled, 2-3 em. long: pistillate spikes , the pus strongly exser obe 
cled, widely pua very emm poseen: at 15-flowered: scales ir the 
midvein excurrent as an awn: perigynium ue obosoid, 3 75-4. 25 . lon ng, 
many-nerved, tapering into the straight or hat rved sho eak.— 
omew PL 
Open dry rieh Miis i in calcareous soil, Fee. Valley, NM Camp- 
bell County, Tenn.—Sum 
58. C. platyphylla ae Culm 1.5-3 dm. tall, slender, not winged, strongly. 
lateral, cinnamon-bro t base: sterile shoots mos d reduced hs tufts of 
leaves: i e T es “glaucous, 9-25 : stamin spike more or less 
peduncled, . long: pistillate spikes 2-4, widely, uen the lower 
short- burden 4-10- flowered: scales short-awned to acuminate, exceeded by 
perigynia: perigynium obovoid, 2.5-3.5 mm. long, finely many-nerved.—Dr 
wooded slopes, oan in loose shale, various provinces, N. C. to Ill, Mich., and 
Que.—Spr.-early s 
9. C. abscondita Mackenzie. Culm 0.5-2 dm. tall, slender, smooth: leaf- 
blades 4-9 mm. wide: staminate spike 4—9 mm. long: pisti illate spikes 2 or 3, 
approximate d short-peduncled or lowest remote and long-peduneled, al 
loosely 3—10-flowered: scales ovate, half the length of bo pd eee to 
short a perigynium oblong-o i 2n Ud ong, des 1.5 
m. e, many-nerved, Nis base E e ys vend 
[C. ipd Steud. C. laxiculmis floridana Bailey.|—-Woodlands, in acid 
soils, Coastal Plain and DAT adj. provinees, Fla. to La., Ind. Ne os 
and Mass.—Sum. 
60. C. magnifolia ip ie. Culm smooth, rar. 1-2 dm. high, much 
shorter than the leaves: leaves glaucous; bla mm. wide, 1.5-3.5 
long, numerous and Pen iiia lower Dc s Ser staminate spike 
sessile or nearly so, about 1 em. long: pistil pie spikes usually 3, erect, the 
lowest long-peduncled, nearly ae the upper two ard the stam nee con nti igu- 
ous, loosely E owered: scales ovate, obtuse or E an fs the pk. 
erigynia us pee tes fusiform, acutely trian 
long, the sides 2 mm. wide, finely many-nerved, the nearly a Pee 
long, with entire orifice Zi digitali Koen Chapm. ]—In shaded m coon 
lands, in acid soils, Fla. —Spr 
61. C. digitalis ers Culm La dm. tall, slender, smooth: leaf-blades bright- 
green: staminate spike 1-2 cm. long: pistill ate spikes 2—4, widely separated, 
the upper short- ET ae ine 2 rene loosely 3-12 ca Seed. second 
bract usually exceeding the culm: scales Ac neeolate, rather ues than 
pe rigynia, acute to ds lr) Su e oid, 2.5—4 mm. long, 
the s ides 1.5 mm. wide, finely many- -nerved, tapering at the pera e and apex, short- 
— Woods Mn un in acid or neutral oils various provinces, Fla. 
to Tex., | Minn., and Me.—Spr. "early s sum. 
62. C. laxiculmis Schw. Culm 1.5-6 dm. tall, weak, smooth: leaf-blades glau- 
cous-green: staminate spike 8-20 mm. ie pistillate spikes 2-4, widely sepa- 
