oshux | CYPERACEAE 711 
Southern Idaho. 
C. nardina Fries Mant. ii, 55. Stems filiform, erect, smooth, 2-6 
_. inches high, very densely tufted: leaves filiform, erect, about as long as 
the stems: spikes solitary erect, terminal, ovoid-oblong, 3-5 lines long, 
less than 2 lines thick, bractless: perigynia oblong-elliptic, vellowish- 
brown, narrowed at both ends, nearly 2 lines long, somewhat hispid above. 
_beakless, the orifice 2-toothed, equalling or shorter than the brown ovate 
_acute or cuspidate thin scales. Washington to Brit. Columbia and Hudson 
>. Bay. | . Wy 
-  Trise xiii’ Hyparruen® Fries Summa. 72. “Staminate flow- 
‘ers borne at the base of the spike or variously situated. -.- 
§ 1 Etoncar# Kunth Enum. PI. ii, 402. Spikes silvery- 
green or sometimes tawny when mature, distinct, mostly small. 
Perigynia not wing-margined nor conspicuously broadened, 
_ mostly nearly flat on the inner face. | 
C. sterilis Willd. Sp. Pl. iv, 208. Stems slender, stitf, erect or spread- 
ing, 8-18 inches long, rough above: leaves 44-1 line wide, shorter than the 
stem: bracts very short or sometimes bristle-like: spikes 3-5, subglobose 
: or short-oblong, contiguous or separated, about 244 lines thick: staminate 
flowers usually numerous. at the base of the upper spike or sometimes. 
whole spikes staminate, rarely quite dicecious: perigynia pale, lanceolate, 
5 compressed, spreading or reflexed when mature, 1% lines long, thickened 
- .at base, tapering into a sharp-edged 2-toothed rough beak more than half 
» as long’as the body, longer than the ovate hyaline scale: stigmas 2.. Com- 
-mon in moist places, California to Alaska and across the continent. 
=. canescens L. Sp. 974. Pale green and somewhat glaucous: stems 
slender, erect, roughish above, 10-30 inches high: leaves flat, 24-1 line 
. wide, shorter than the stem: bracts very short or none, or the lowest bris- 
_ tle-like and longer than its spike: spikes 4-9, short-oblong or subglobose, 
-- * densely many-flowered, 2-5 lines long, about 2 lines thick, scattered or the 
upper close together: staminate flowers basal: perigynia oval, silvery-green . 
_*to nearly white, rather Jess than a line long, about 46 line‘ wide, rough 
above, tipped with a minute entire beak, equalling or surpassing the ovate 
4 hyaline scale. In swamps and bogs, Oregon to Alaska and across the 
 ‘continént.. ek eer ie | ee 
Var. Oregana Bailey Mem. Torr. Bot, Club i, 75. Head larger 
and more dense, becoming brown: spikes loosely flowered, the perigynia 
~ sometimes spreading in a stellate manner, narrow, often almost linear- 
* lanceolate; brown-nerved, sharp-edged and rough above. In wet places. 
Oregon to Vancouver Island. - ; ; 
C. brunnescens Poir. in Lam. Encycl. Supp. iii, 286. Rather dark 
greea, not glaucous: stems slender, stiff, erect, 8-18 inches high; leaves a 
a line.or less wide, shorter than the stem, spikes 4-8 subglobose.or short- 
. oblong, few-flowered, rarely over 244 lines long, scattered or the upper 
close together: staminate flowers basal: perigynia ascending or spreading, 
‘brown, less than a line long, ‘tipped with a beak about-44 as long as the 
body, about equalling the ovate membranous brownish scale. In wet 
/places, Oregon to Brit. Columbia and the Eastern States. . 
 C. areta Boott Ill. 155, t. 497. Rather light green but, not glaucous: 
_ stems slender, erect, 12-30 inches high, rough above: leaves flat, a line 
_ wide, shorter than or equalling the stem: spikes oblong, many-flowered, 
3-4 lines long, about 24% lines thick, all aggregated into a terminal ovoid 
cluster: staminate flowers basal: perigynia pale, ovate, mostly spreading, 
tapering into a rough beak about half as long as the body, longer than the 
