chen : CYPERACER 697 
short-peduncled, 1-4 inches long slenderly cylindrical: perigynia elliptic 
conspicuously few-nerved, abruptly narrowed into a whitish beak, spread- 
ing, about as long as the whitish purple-margined awn-pointed scale. In 
wet places in wooded districts, California to Oregon and Idaho. 
§ 2 Hirr# Tuckerman Enum. Meth. 14. Terminal spike 
all staminate: pistillate spikes densely many-flowered. Perigynia 
more or less hairy, the beak more deeply toothed. 
C. Oregonensis Olney Proc. Am. Acad. viii, 407. Stems smooth or 
nearly so, very leafy, about a foot high: pistillate spikes about 3, an inch 
long, often staminate at the top, erect, approximate, shortly peduncled: 
perigynia ovate, tapering at both ends, prominently many-nerved, thickly 
covered with short stiff hairs, gradually produced into a white and smooth 
distinctly 2-toothed beak, longer than the ovate acute membranous scale. 
In the higher parts of the Cascade Mountains. 
(. lanuginosa Michx. FI. ii, 175. Stems rather slender, acutely an- 
gled and rough above, 1-2 feet high: leaves and lower bract elongated, 
flat, not involute, 1-2 lines wide, sometimes longer than the stem: stamin- 
ate spikes 1-3, long-peduncled sometimes pistillate at hase: pistillate spikes 
1-3, usually distant, sessile or the lowest peduncled, 9-18 lines long; scales 
ovate, membranous, often purplish, acuminate or short-awned: perigynia 
green, densely pubescent, tapering into a short 2-toothed beak, as long or 
longer than the scale. In moist meadows, California to Brit. Columbia 
and across the continent. 
§ 3 PaLuposa Fries Corp. 190. Staminate spikes 2 or more, 
long-peduncled: pistillate spikes 2 to several, usually all pedun- 
cled, long and heayy, loosely flowered. Perigynia large, thick in 
texture, strongly nerved, mostly smooth, usually produced into a 
long beak which terminates in conspicuous subulate erect or 
spreading teeth. 
C. aristata R. Br. Franklin Journ. 721. Stems stout, erect, smooth 
or roughish above, acutely angled, 2-5 feet high: leaves elongated, 3-5 lines 
wide; more or less scabrous often pubescent beneath and on the sheaths: 
bracts similar, the lower often exceeding the stem: staminate spikes 3-5, 
remote, cylindrical, sessile or the lowest short-peduncled, loosely-flowered: 
at the base, dense above, 1-4 inches long, sometimes 8 lines in diameter 
scales oblong-lanceolate, rough-awned, thin-margined, perigynia ascend- 
ing, conic, glabrous, 4-6 lines long, gradually tapering into the conspic- 
‘uously 2-toothed beak nearly twice as long as the scale. In bogs, Oregon, 
the Northwest Territory, Michigan and New York. 
C. riparia Curtis Fl. Lond. iv t. 60. Pale green and glabrous: stems 
stout o1 rather slender, smooth or somewhat rough above, erect, 2-3 feet 
high: leaves elongated, somewhat glaucous, 3-6 lines wide, about equaling 
the stem : staminate spikes 1-5; pistillate spikes 2-5, cylindric, 2-4 inches 
.ong, about 4 lines in diameter the upper erect, sessile or nearly so, the 
lower more or less peduncled: scales lanceolate or oblanceolate long-aris- 
tate or acute: perigynia narrowly ovoid, firm, scarcely inflated, tapering 
gradually into a short 2-toothed beak, as long or longer than the scales. 
In swamps, Idaho to Manitoba and Florida. 
TRIBE m1 MicroHyNcH#& Drejer Symb. Car 9. Paludose and 
alpine species of various habit, mostly with colored spikes, often 
growing in dense tufts. Perigynia small nearly beakless, not 
prominently toothed at the apex, rather thin in texture. 
