704 CYPERACE^E carex 



pistillate spikes 1-3, narrowly oblong, 2-6 lines long, 1 line thick, nodding, 

 10-12-flowered: perigynia oblong, 3-angled light green, the slender beak 

 about % as long as the body, longer than the oval, scarious margined scale. 

 Idaho to Alaska, Greenland and the Atlantic States; also Europe and Asia. 



C. cinnamomea Olney Proc. Am. Acad, vii, 396. Stems slender, 1-2 

 feet high, erect: leaves narrow-margined, shorter! than the stem: bracts 

 sheathing, longer or shorter than the stem: spikes 3-5, erect, 12-18 inches 

 long, cinnamon colored, the terminal one staminate, fusiform and long pe- 

 duncled, the others pistillate, cylindrical, densely flowered, the upper ap- 

 proximate, the lower on long exserted peduncles, attenuate and loosely flow- 

 ered at base, the lowest remote: scales cinnamon colored with green centre, 

 membranous, ovate, obtuse, ciliate at the apex: perigynia elliptical, 3 angled, 

 green, rostellate with bidentate orifice ciliate within, glabrous, Linger and 

 broader than the scale. In marshes, southern Oregon and California. 



Tribe v Spirostachy^e Drejer Symb. Car. 10. Staminate 

 spikes usually solitary, pistillate spikes 2-5, short yellowish or 

 fuscous, compactly flowered. Perigynia smooth or minutely gran- 

 ulate, rarely somewhat serrate on the margins, prominently 

 nerved, squarrose, mostly beaked, the orifice entire. Stigmas 3. 



C. viridula Mich. Fl. ii, 170. Glabrous and bright green: Stems 

 slender, erect, 4-15 inches high: leaves a line or less wide, often longer than 

 the stem: bracts similar, strictly erect and much exceeding the spikes, ses- 

 sile, sometimes pistillate at the top: pistillate spikes 2-5, all approximate and 

 sessile or the lowest distant and short-peduncled, oblong, 2-6 lines long, 2 

 lines or less thick: perigynia ovoid-oblong, a line or less long, narrowed at 

 base, tapering into a 2-toothed beak about half as long as the body, longer 

 than the ovate scale. In wet places, Washington to Alaska, New Foundland 

 and Pennsylvania. 



Tribe vi DactylostachyjE Drejer Symb. Car. 10. Bracts 

 sheathing, the sheaths often conspicuous and colored. Staminate 

 spike mostly one: pistillate spikes short, commonly rather loosely 

 flowered and slender, their scales mostly whitish, often small. 



§ 1 Laxiflorae Kunth Enum. PL ii, 452. Slender, more or 

 less broad-leaved species with mostly leafy bracts, green sheaths 

 and loosly flowered spikes. Perigynia mostly conspicuously 3- 

 angled, with a more or less curved beak. 



C. Hemlersoni Bailey Proc. Am. Acad, xxii, 115. Slender and rather 

 weak, 1-2 >£ feet high: leaves thick and flaccid, 4-8 lines wide, shorter thn 

 the stem: bracts with sheaths 1-3 inches long: spikes 4-5, pale, the 

 pistillate approximate, on short peduncles, loosely flowered: perigynia 2-3 

 lines long, gradually contracted at each end, longer than the firm hyaline- 

 margined ovate obtuse often mucronate scale. In forests and thickets, 

 Washington to California. 



§ 2 Panaice^e Tuckerman Enum. Meth. 15. Mostly stouter 

 narrow-leaved species. Perigynia often strongly nerved, not con- 

 spicuously trigonous, often turgid 



C. livida Willd. Sp. PI. iv, 285. Pale green and very glaucous- 

 Stems slender, strictly erect, smooth, 12-18 inches high: leaves 1-2 lines 

 wide, shorter than or equalling the stem: bracts narrow, usually short: 

 staminate spike solitary, short-peduncled: pistillate spikes 1-3, 5-12 lines 





