7 CYPERACEAE. 



Carex limosa L. Stoloniferous; stems rough-angled, slender, 15-40 cm. 

 high; leaves somewhat glaucous, mostly shorter than the stems, 1-3 mm. wide; 

 bracts shorter than the inflorescence; terminal spikes staminate, erect, linear; 

 pistillate spikes 1-3, drooping on slender peduncles, 0.5-2 cm. long; perigynia 

 ovoid, flattened, narrowed at base, very short-beaked, glaucous; scales brown- 

 ish, ovate, acute or short-cuspidate, slightly exceeding the perigynia. 



In sphagnum bogs. 



Carex spectabilis Dewey. (C. invisa Bailey.) Glabrous; stems tufted, slen- 

 der, 40-60 cm. high, erect, sharp-angled; leaves flat and smooth, 4-8 mm. broad, 

 nearly as long as the stems; bracts leaf-like, 4 mm. wide, without sheaths, 

 nearly equalling the inflorescence; spikes 3-6, short-cylindric, erect or nodding, 

 sessile or the lower ones variously peduncled, the upper one staminate; pistillate 

 spikes cylindric, 1-2.5 cm. long, often loosely flowered at base, sometimes 

 staminate at tip; perigynia ovate-elliptic, green with purple specks, few-nerved, 

 flat, the short beak emarginate at orifice; scales dark-purple with white 

 midvein, mucronate, shorter than the perigynia. 



Common in high mountain meadows. 



Carex paupercula Michx. Stems slender, 20-60 cm. high, the angles 

 sharp and usually rough; leaves flat, 2-4 mm. wide, usually shorter than the 

 stem; bracts leaf-like, the lowest usually longer than the inflorescence; terminal 

 spike staminate; lateral spikes 1-4, pistillate, slender-peduncled, sometimes 

 drooping, 1-2 cm. long; perigynia ovoid, flattened, constricted at each end, 

 glaucous; scales ovate-lanceolate, aristate, much longer than the perigynia, 

 usually brownish. 



Vancouver Island, Macoun. A widely spread species that has usually been 

 referred to C. magellanica Lam. 



Carex macrochaeta C. A. Mey. Loosely tufted, glabrous; stems 30-60 

 cm. high, mostly rough-angled; leaves flat, firm, 2-4 mm. wide, mostly shorter 

 than the stems; spikes 3-5, the lower ones nodding on slender peduncles, the 

 upper one or two staminate and erect; pistillate spikes often staminate at top, 

 cylindric, 2-3 cm. long; perigynia elliptic, each with a very short entire beak, 

 pale sprinkled with purple dots, 4-5 mm. long; scales black, the white midrib 

 prolonged into a long awn; stigmas 2 or rarely 3. 



Multnomah Falls, Oregon, Piper. Rare in our limits. 



Carex ablata Bailey. Stems slender, 30-60 cm. high, smooth; leaves pale, 

 flat, 2-5 mm. wide, much shorter than the stems; bracts sheathing at base, 

 usually much shorter than the inflorescence; spikes usually 5-7, approximate, 

 sessile, the lower ones often distant, the upper pistillate spikes cylindric, 1-2 

 cm. long; perigynia lanceolate, obscurely nerved, pale green, glabrous, bident- 

 ate at apex; scales acutish, shorter than the perigynia, brown with a green 

 midrib. 



Common in the mountains at 2000 m. altitude. 



Carex hendersoni Bailey. Tufted, glabrous; stems slender, smooth, 60-90 

 cm. high; leaves flat, 4-7 mm. broad, shorter than the stems; bracts leaf-like, 

 exceeding the inflorescence; terminal spike linear, staminate, about 2 cm. long; 

 pistillate spikes about 4, loosely-flowered, the upper one sessile, the lowest one 

 distant and long-peduncled; perigynia 56 mm. long, triangular-ovoid, stipitate, 

 green, strongly nerved, each tipped with an oblique beak half as long as the 

 body; scales with a broad scarious margin, cuspidate, pale, shorter than the 

 perigynia. 



In rich woods. Named after Professor L. F. Henderson who found it near 

 Portland, Oregon. 



Carex livida (Wahlenb.) Willd. Creeping with long stolons; herbage glau- 

 cous; stems 15-50 cm. high; leaves folded or involute, about 2 mm. wide, shorter 



