520 
CYPERACEiE. (SEDGE FAMILY.) 
as in Cyperus § Pycreus (viz. style 2-cleft: achenium lenticu¬ 
lar), but the numerous spikes densely aggregated in solitary or 
triple sessile heads. Involucre about 3-leaved. (Named after 
Kylling , a Danish botanist.) 
1. K.. pumila, Michx. Head globular or 3-lobed; spikes 
strictly 1-flowered; upper scales ovate, pointed, rough on the keel; 
stamens 2; leaves linear. — Low grounds, Ohio and southward. Aug. 
— Culms 2 1 -9' high : heads whitish-green, broad. 
3. DIJLtCHIUM, Richard. Dulichium. 
Spikes many- (6-10-) flowered, linear, flattened, sessile in 2 
ranks on axillary solitary peduncles emerging from the sheaths of 
the leaves. Scales 2-ranked, lanceolate. Perianth of 6-9 down¬ 
wardly barbed bristles. Stamens 3. Style 2-cleft above. Ache¬ 
nium flattened, linear-oblong, beaked with the long persistent 
style. — Culm terete, simple (l°-2° high), jointed and leafy to 
the summit; the leaves short and flat, linear, 3-ranked. (Deriva¬ 
tion unexplained.) 
1. D. spathaceum, Pers. (Schcenus, L.) U —Borders of 
ponds, &c., common. July - Sept. — Spikes |' long, brownish. 
FUIRENA, Rottboll. Fuirena. 
Spikes many-flowered, clustered or solitary, axillary and termi¬ 
nal. Scales imbricated in many ranks, awned below the apex. 
Perianth of 3 ovate or heart-shaped petaloid scales, mostly on 
claws, and usually with as many alternate small bristles. Sta¬ 
mens 3. Style 3-cleft. Achenium triangular, pointed with the 
persistent base of the style. — Culms obtusely angular. (Named 
for G. Fuiren, a Danish botanist.) 
!• squarrdsa, Michx. Leaves and sheaths ciliate and 
hairy; spikes ovoid-oblong, in capitate clusters, bristly with the 
spreading awns; perianth-scales ovate, awn-pointed, the interposed 
bristles minute. —Yar. p&mila, Torr. (F. pumila, Spreng. F. Tor- 
rey&na, Beck.), has the perianth-scales ovate-lanceolate, narrowed at 
the base; spikes 2-(^. — Sandy bogs, Massachusetts to New Jer¬ 
sey near the coast, and southward; also in Michigan: the variety 
chiefly at the North. Aug. — Culm 1°, the var. 3' -6', high. 
MEIHICARI*IIA, Nees. Hemicarpha. 
Spikes many-flowered, ovoid, one or few in a lateral cluster, 
sessile. Scales imbricated in many ranks, ovate or obovate. I n " 
