324 



CYPERACEAE 



107. Carex whitneyi Olney. 

 Whitney's Sedge. Fig. 783. 



Carer wliitncyi Olney, Proc. Am. Acad. 7: 394. 1868. 

 Carex pilosiiiscula Boeckl. Flora 65: 61. 1882. 



Cespitose, the culms 2.5-10 dm. high. Foliage soft- 

 pubescent, the sheaths loose, the blades 2.5-8 mm. wide; 

 staminate spike solitary, short- or long-peduncled, 5-30 mm. 

 long; pistillate spikes 2^, approximate or the lower more 

 or less separate, erect, sessile, or short-peduncled, suborbicular 

 to linear-oblong, 7-30 cm. long, 5-7 mm. wide, closely 5-30- 

 flowered; lowest bract short sheathing, about equalling culm; 

 scales ovate, acute or short cuspidate, exceeding perigynia, 

 green, 3-nerved, broadly hyaline margined ; perigynia ascend- 

 ing, obliquely lanceolate-ovoid, sharply triangular, 4-5 mm. 

 long, 2 mm. wide, pale green, smooth, puncticulate, about 5- 

 ribbed on each side, round-tapering at base, tapering into a 

 smooth beak 0.75 mm. long, the orifice minutely bidentate in 

 age; achenes triangular; style jointed with achene, its base 

 scarcely thickened ; stigmas 3. 



Southern Oregon and northern California, and south in the Sierra 

 Nevada to Tulare County; Canadian and Hudsonian Zones. Type lo- 

 cality: Yosemite Valley. 



108. Carex gynodynama Olney. 

 Olney's Hairy Sedge. Fig. 784. 



Carex gvnodynama Olney, Proc. Am. Acad. 7: 394. 1868. 

 Carex blakinshitn Fernald, Erythea 7: 121. 1899. 



Cespitose, the culms 2-7 dm. high, slender, sharply tri- 

 angular, brownish at base. Leaves mostly clustered near 

 base, the blades 3-9 mm. wide, sparsely and softly short 

 pubescent; terminal spike staminate or with a few peri- 

 gynia, sessile or short-peduncled, 1-2 cm. long; lateral 

 spikes 2-4, oblong-cylindric, 1-3.5 cm. long, 6-9 mm. wide, 

 erect, closely 20-40-flowered. the upper approximate and 

 often overtopping the staminate spike, short-peduncled, 

 <4he lower strongly separate, long-peduncled; bracts 

 sheathing, the blades short; scales exceeded by perigynia, 

 ovate-orbicular, short cuspidate or obtuse, reddish brown 

 with lighter center and conspicuous hyaline margins ; 

 perigynia ascending, oblong-ovoid, 4-5 mm. long, 2 mm. 

 wide,' finely many nerved, strongly long hairy, membrana- 

 ceous, triangular, round-tapering at base, rounded and 

 abruptly beaked at apex, the beak 0.75 mm. long, at 

 length bidentulate; achenes triangular; style jointed with 

 achenes; stigmas 3. 



Moist places, Transition Zone; coast ranges from southern Ore- 

 gon to San Mateo County, California. Type locality: Mendocino 

 City, California. 



109. Carex hirtissima W. Boott. 

 Hairy Sierra Sedge. Fig. 785. 



Carex hirtissima W. Boott in S. Wats. Bot. Calif. 2: 247. 1880. 



Cespitose, the culms 3-5 dm. high, strictly erect, sparingly 

 pubescent, not roughened on the angles, much exceeding the 

 leaves. Leaf-blades flat, 3-4 mm. wide or up to 7 mm. on the 

 sterile shoots, loosely hirsute on both surfaces ; terminal spike 

 staminate or gynaecandrous. from short to long peduncled, 1.5-2.5 

 cm. long, the scales oblong-obovate, glabrous, or slightly pubescent, 

 strongly white margined ; pistillate spikes 2 or 3, oblong, 

 1-2.5 cm. long, 5 mm. wide, more or less strongly separate, the 

 lower on long-exserted peduncles, closely flowered with 20-30 

 ascending perigynia; lower bract leaf-like, sheathing, about 

 equalling the culm; scales ovate or obovate, cuspidate or _mii- 

 cronate, shorter than perigynia, obscurely pubescent, the midrib 

 green and the margins broad white hyaline; perigynia loosely 

 pubescent, 3.5-4 mm. long, 1.75 mm. wide, sessile, the body obovoid, 

 2.5-3 mm. long, obtuselv triangular, the sides very obscurely 

 striate, abruptly short-beaked, the beak 1 mm. long, hyaline, very 

 shallowly bidentate ; achenes triangular, closely enveloped ; style 

 very short, jointed with achene; stigrnas 3. 



Rare and local in the central part of the Sierra Nevada, California; also 

 Mount Sanhedrin, Lake County; Transition and Canadian Zones. Type 

 locality: Summit Camp, Sierra Nevada. 



