545 
CYPERACEAS. (SEDGE FAMILY.) 
with a more or less dilated membranaceous margin or wing.— 
•!! €? sy c HHOC. phalU, Carey. Spikes densely clustered 
forming a short compound spiked head subtended by 3 ~9*H?** 
leafy bracts; perigynia tapering from an abruptly con rac 
base into a long slender beak, somewhat exceeding t e ff * 
ruptly roucronate scale. (C. cyperoides, D«c., not of L.) 
county (Vasey fy Knieskern ) and Little Falls, New York, Dr. y 
-Different in habit from all the rest of this section, and recognized 
at once by the ovoid compound spike, seated at the base of the long 
leafy bracts, by which the lower spikes are partly concealed. 
35 C. rtrida, Schw. & Torr. Spikes 8-10, approximate (| 
long), oblong-cylindrical, contracted at each end; perigynia "arrowy 
lanceolate (4-51 ines in length), tapering into a long beak more than 
twice the length of the ovate-lanceolate scale; achenmmsessile 
row.y oblong.-Wet meadowsOhioandwesw^- 
ters scarcely distinguished from No. 37, but it is striking y 
appearance, and is a much larger plant, with long, dry, an y 
lookingspikcsn^i^ SplfctJ 6> elliptical, approximate, without 
bracts; perigynia lanceolate, pointed, tbe margin rough, without wings 
scarcely looser than the pointed lanceolate chestnut-colored scale; ache- 
niuinfoblong-obovate, nearly sessile. - Michigan and westward; rare- 
37 C seoparia, Sehk. Spikes 5-8, club-shaped, at length 
ovate more or’less approximate, sometimes forming a dense head, 
SSSSxSSSiit- 
ratherobtuse scale; achenium narrowly oval on asortstalk. 
cntsxwxx has the spikes closely aggrega.d, 
spreading. (C. cristata, Schw. hf ) .jj ^ ii,o more 
In with the last, from which it is only ^-f"^ igynia and 
numerous shorter spikes, and shor er a P to which 
the diverging points of the fr g 6 _ g obovoid or dub-shap • 
39. C. resiliences*, Schk. v wingedy with a short 
ed, the lower distinct; ptngVfn ’ achenium sessile, broad- 
beak, longer than the ovate-lanceo.ate s^ ^hen^ ^ ^ ^ 
ly oval. —Var. 1. tenera has (d-&) smaller p tenera, 
distant on the slender, flexuose, sometimes n^^^ approxima te spikes, 
Dew.) —Var. 2. MiaiaiLis has (6- ) ^ewhat spreading, 
with fewer staminate flowers, and the per gy 
46* 
