CYPERACEAE 205 
n the dorsal, and often somewhat convex on the ventral face, brownish o 
POR in age, ascending or spreading, iii spongy at base, ERN 
narrowly margined, more or less nerved, co 
spieuously rough beaked, the beak bidentate. 
Achene lenticular.  Style-base more or less 
thiekened.  Stigmas 2 
C. decomposita Muhl. Culm 5-10 dm 
wW 
head 4-15 cm. long, decompound wit ery 
net small S ikes: bracts Bisel 
e, acute, nearly the length 
of “the oe pn gynium short- obovoid, 
2—2.0 mm. long, tapering at base, very 
b | 
sally, faintly nerved ventrally.—Swamps, : 
various provinces, Fla. to La., Mo. Mich. and W N. Y.—Late spr.-sum. 
IV. STENORHYNCHAE Holm. Densely Md or with a more or less 
elongated rootstock. Culm triangular or somewhat flattened. Opaque part 
of sheaths usually transversely rugulose or red-dotted. Spikes few to many, 
androgynous to oe te, but not gynaecandrous, the lower from simple to 
compound.  Braets little developed. Peri- 
gyniu D neienite yellowish or yellowish- 
brown, appressed-ascending to spreading, not 
thick-walled, but strongly spongy at base, 
nearly obsolete on the lower half, conspicu- 
ously beaked, the beak bidentate. Achene 
lenticular. Style-base more or less thick- 
ened. Stigmas 2 
15. C. stipata Muhl. Culm 2-12 dm. tall, 
stout base, sharply 3-angled, slightly 
winged and strongly serrulate above, rather 
weak: leaf-blades 4—8 mm. wi E — 
m. long, somewhat compound, spikes ee 2 yellowish-brown: 
braets ineonspieuous: scales o umm o: lanceolate, minate, much shorter E 
the perigynia: perigynium 4—5 mm . long, 1 b strongly nerved.—Sw 
and wet meadows, Seay B various provinees, Tenn. o Mo., "N. M., Calif, 
S Alas., and New f— —Spr.- 
16. C. uberior (C. Mohr) Mackenzie. Culm 4-9 dm. tall, very thick, but 
weak, sharply triangular, very rough above, much flattened in drying: leaf- 
blades 8-15 mm. wide: head 4-10 cm. long, compound, the spikes numerous, 
! t u 
awned, much shorter than perigynia: perigynium 5-6 mm. long, lanceolate, 
strongly nerved. [Carex stipata uberior Œ. Moh Tor BUSES neutral 
soils, Coastal Plain, Fla. to Ala. and S N. J.—Spr.-early su 
17. C. eee (Kükenth.) Mackenzie. Culm 4-8 dm. tall, ee thick- 
ened at base, sharply 3-angled, slightly winged and strongly serr rulat above, 
rather weak: leaf-blades 3-6 mm. wide: head 2. 9-6 em. long, the spikes numer- 
