228 CYPERACEAE 
coriaceous, plano- or bi-eonvex, or turgid, elliptic to obovate, puncticulate, mar- 
gined, beakless or abruptly minutely beaked, the orifice entire to deeply biden- 
tate. Achene normally lentieular. Style 
slender, straight, sometimes exserted, 
its base not enlarged. tigmas nor- 
mally 2. 
104. C. torta e Culm 2.5-9 dm 
tall: leaf-blades 3—4 mm. wide, light- 
green, lower ul ied filamen- 
se aminate 
spike ually one, 
peduncled: urat spikes 3- 6, 2-7.5 
m. long, 2.5-4.5 p ‘linear, 
closely cae ewe Er metimes 
loosely so at base, e rect to den 
the lower slender- Bd neled: scales 
ovate-oblong, shorter than perigynia, 
obtuse or acutish: perigynium oe 
ovate, light- a nerveless, 2.5-3 m 
long.—Rocky banks E svittowing streams, various provinces, is dn iind 
Coastal Plat , N. C. to S Mo. nn., Que d N. S.—Spr.-early su 
only B phim growing popu the pauldens in or on the ea s 
of tor 
105. C. strictior Dewey. Growing in beds, long- eiu culm 3.5-9 dm 
tall, slender, purplish- pee at base: leaf- blades 2.5-3.5 mm. wide, light- or 
glaucous-green, flat to the base, the ee ns very rough: Ten Penn filamen- 
tose, rounded and his Disi Bo ally: staminate spike strongly peduneled, 2— » 
em. long: pistillate spikes usually 3, d to long- b i d, approximate 
lower distant, 1.5-6 em. lon im 4-5 mm. wide, clos any-flo owered: eae 
bract little shorter than inflorescence: scales Satelit a CE iei 
- -edged, P granular, green, 2.25-2.75 mm. lon 28, 
1.5 mm. wide, urn ui nerved a ee minutely beaked. [C. strict 
(Fl SE. U. 8.) n m.]—Swampy meadows, without ds pum prefer 
E Blue Ridge op more enun, dorm E “Ot o Tenn., Ia. , Que 
pr.-early —Does not have T Bus uu tei of 
the next following duc 
C. stricta Lam. Growing in large very dense oe culm 3-8 dm 
tall, slender to base, brownish or light- ead pun -brown the base: M in 
5— . wide, deep-green, channeled and keeled Hebe the bas 
gins very rough: lower sheaths filamentose, subcarinate and sm ens us Rub. 
so dorsally: principal staminate spike 2—4 em. long: pistillate spikes 2 or 3, 
ea or short-peduncled, d Hd or the lower distant, 2-6 cm. long, 3-5 
wide, closely many-flow red: lower braet usually much Shorter than the 
eee. scales reddish- ia ange: perigynium ovate, plano-convex, 2- 
edged, puncticulate, granular, dark-green, 2.25—2.75 mm. long, 1.5 mm. wide, 
obseurely nerved dorsally, beakle ess or nearly so.— Swampy meadows or woods, 
j e soils, va ie 
Spr.-ea um. 
and reed eoi cover di areas in the lowlands to the practical exclusion 
of other vegetation. The water stands in small pools between the tussocks, 
nd ee seg y be drained off, w y le the tussocks themselves enel v 
bro up e t prohibitive cost, o that lands where it occurs in qua 
are edo s e he le en ín m margined, and are d 
by stock; they are sometimes ad p ma 
