CABEX CYPERACE^) 699 



or the lowest distant, on a peduncle 1-1)^ inches long: scales purple, or 

 pale in the middle and on the margins, oblong or oval acute or acuminate, 

 divergent, pale yellow above, abruptly rostellate with a .purple emarginate 

 beak, longer and broader than the scale. In the mountains, California to 

 eastern Washington and Montana. 



C. stylosa C. A. Meyer Act. Acad, St. Petersb. i, 222, t. 12. 

 Stems slender, erect, 12-18 inches high, rough and leafless above; leaves 

 1-2 lines wide, shorter than the stem : Staminate spikes solitary, nearly 

 sessile^ pften partly* pistillate, an inch or less long: pistillate spikes 2-3, 6 

 lines long or less,. the lowest longest, slender-peduncled, the others sessile 

 or nearly so; perigynia turgid-ovate, fuscous, minutely punctate, beakless, 

 the entire orifice closed with the stiff and persistent style from which the 

 stigmas are caducous, longer than the very obtuse black white-ribbed scale. 

 In wet meadows, .northern Washington to" Alaska and Labi ador. 



C. spreta Bailey Mem. Torr. Bot, Glub, 4,--6i . Stems stout. 12 

 to 18 inches high : leaves 2-3 lines wide, usually equalling or exceeding 

 the stem : spikes sessile 4-6 lines long, and nearly as thick, the upper 2-3 

 contiguous to the staminate spike : perigynia broadly'elliptical, or broader 

 tjian long, beakless, thin, green, longer, and much broader than the black 

 and muticose faintly white-nerved scale Columbia river^ bottoms. 



C. Tolmiel Boott Hook. Fl. 11, 224. Stem rigid, 12-18 inches high 

 triquetrous, smooth or nearly so : leaves rough on the margins, mostly 

 shorter tban> the stem :, lower bracts leaf-like and about equalling' the stem, 

 sheathless: spikes 4-7, the uppermost an inch or less long, staminate "and 

 mostly contiguous, oval or oblong 8-12 lines long, dark -colored, often stam- 

 inate at the apex, the 2 or 3 lowest slender-peduncled 1-2 inches long: 

 perigynia compressed- trigonous, oval or oval-oblong, pale and more or less 

 discolored with purple dots, produced into a very short and entire cylind- 

 rical beak, either longer or snorter than the obtuse or muticous purple 

 white-ribbed scale. Oregon to Behring Straits. 



Var. uigella Bailey Men. Torr. Bot. Club i, 47. Perigynia minutely 

 bidentate: scale narrower and more acute. 



Var, subsessilis Bailey 1. c. Spikes short and thick, very densely 

 flowered the staminate sessile; the pistillate aggregated near the top, 

 sessile or the lowest very shortly peduncled : perigynia broader and more 

 abruptly contracted. Eastern Oregon to Colorado. 



Yar. angusta Bailey 1. c. Taller, leaves very long and narrow, the 

 basal sheaths becoming fibrillose : spikes sessile or lowest peduncled, cy- 

 lindrical: bracts narrow or filiform. Kerbyville Oregon. 



C. Kelloggii W. Boott. Bot. Cal. 11, 240. Stems very slender 12-16 

 inches high, sharply angled and scabrous above : leaves 1-2 lines wide, 

 the cauline shorter, the sterile rather longer than the stem: bracts with- 

 out sheaths, the lowest slightlv exceeding the stem; spikes 4-5, narrowly 

 cylindrical or clavate, short-peduncled and loosely flowered at base, the up- 

 permost stainjnate, rarely with some pistillate flowers at top or base, 9 

 lines long; pistillate spikes 3-12 lines long, about a line thick: scales 

 purple with pale midrib, obtuse perigynia pale, ovate, tapering to a short 

 beak, the orifice, entire, purple, smooth, longer than the scale. In the 

 mountains, California to Brit. Columbia. 



C. decidua Boott. Linn Trans, xx, 119. Stems 12-18 inches high : 

 leaves 1-3 lines wide, shorter than the stem: bracts without sheaths, the 

 lower exceeding the stem; spikes 4-6, dark purple, oblong or cylindric, the 

 uppermost staminate, at least at base, or at both ends, 12-14 lines long, 

 $-3 lines thick, the others pistillate and solitary or in clusters of 2-3, 6-18 

 iiaes long, 2-4 lines thick: scales dark purple with pale centre, oblong-oval 



