236 CYPERACEAK 



Wet places, mostly around lakes, Sierra Nevada from Tulare Co. to Nevada 

 Co., 5000 to 7200 ft. ' 



Locs. — Kern Lake, Dudley 2044; South Fork San Joaquin Eiver, Hall # Chandler 651; 

 Crescent Lake, Mariposia Co., Congdon; Yosemite, Bnlandcr 6198; Lake Mary, Mono Co., 

 Congdon; Silver Lake, Amador Co., Breicer 2099; Truckee, Hitchcock 258. 



Refs. — Carex paucicostata Mackenzie, Erytliea 8:74 (1922). C. interrupta Boeekl. var. 

 impressa Bailey, Mem. Torr. Club 1:18 (1889), type loc. Summit Camp, Placer Co., Kellogg. 

 C. lenticularis Boott in Bot. Cal. 2:242 (1880) in part, not Miclux. 



104. C. hindsii C. B. Clarke. Culms slender, 1 to 6 dm. high; blades 1.5 

 to 3 mm. wide, Hat or channeled at base ; staminate spike solitary, long-peduncled ; 

 pistillate spikes 4 to 6, linear or oblong'-linear, 1.5 to 4.5 em. long, the numerous 

 pei-igynia appressed-ascendiug: scales oblong, obtuse or acutish, blackish with 

 lighter center, much shorter than perig.yuia; perigynia 2.5 to 3.5 mm. long, 

 the upper part empty, abniptly black apiculate tipped. 



Wet places along the coast, Del Norte Co. (Crescent City, W. R. Dudley). 

 North to the Aleutian Isls. 



Eef.— C.VREX HiNBsn C. B. Clarke, Kew. Bull. Misc. Inf. add. ser. 8:70 (1908), type loc. 

 Columbia Eiver, Hinds. 



105. C. kelloggii W. Boott. Culms slender, 3 to 7 dm. high; leaf-blades 

 light green, tlat or channeled at base, 1.5 to 3 nmi. wide; staminate spike usually 

 solitary; pistillate spikes 3 to 5, sessile or nearly so, approximate, linear, 1.5 to 

 4 cm. long, often attenuate at ba.se, the numerous perigraia appressed-ascendiug ; 

 scales obtuse or acutish with broad light-colored center; perigynia 2.5 mm. long, 

 the beak abruptly black apiculate tipped. 



Wet places, 4000 to 9400 ft., Sierra Nevada from Tulare Co. to Siskiyou Co. 

 North to Alaska, east to Colorado. 



Locs. — Moraine Lake, Chagoopah Plateau, Dudley 2211; Giant Forest, Dudley 2989; North 

 Fork, Fresno Co., Griffiths 4572; Johnson Lake, Yosemite Park, Congdon; Snowy Cascade, 

 Eldorado Co., Braincrd 77 ; Jacksous Lake, Siskiyou Co., Dudley. 



Befs.— Carex kelloggh W. Boott in Bot. Cal. 2:240 (1880), type loc. "Alta and from 

 Lake Tahoe to Bear Valley," Kellogg, Lemmon. C. dccidua W. Boott, I.e. 241, not F. Boott. 

 C. lenticularis W. Boott, I.e. 242 in part, not Michx. 



106. C. sitchensis Prescott. Culms 6 to 12 cbn. high, stout, sharply tri- 

 angular, strongly reddened at base; leaf-lilades flat or channeled at base, 2 to 

 9 mm. mde; staminate spikes 2 to 5, slender; pistillate spikes 3 to 5, strongly 

 separate, linear-cylindric, 3 to 9 cm. long, very many-flowered ; scales lanceolate, 

 sharp-pointed; perigynia ovate or oval, 3 to 3.5 mm. long, broadest near middle, 

 not red-dotted, apiculate. 



Near the coast from Santa Cruz Co. to Del Norte Co., thence easterly to 

 Butte Co. North to Alaska. Verj' local with us. 



Locs. — Santa Cruz, Wood 599; Twelve Mile House near San Jose, Bolandcr; Crescent City, 

 Dudley; Sisson, Jcpson 55a; Clear Creek, Butte Co., H. E. Brotvn 91. 



Eefs. — Carex sitchensis Prescott, Mem. Acad. St. Petersb. ser. 6, 2:169 (1832), type 

 loc. Sitka, Alas. C. aqvotiJis W. Boott in Bot. Cal. 2:241 (1880), not Wahl. 



107. C. aquatilis Wahl. Culms 2 to 7 dm. high, reddened at base; leaf- 

 blades 2 to 6 mm. wide ; staminate spikes 1 or 2, slender ; pistillate spikes 2 to 4, 

 sessile or short-peduncled, not aggregated, linear, 1.5 to 6 cm. long ; scales oblong- 

 obovate to lanceolate, obtuse or acutish ; perigynia elliptic-obovoid, 2.5 mm. long, 

 broadest below apex, red-dotted, minutely beaked. 



Swamp3' grounds, Modoc Co. (Moulton, Warner Mts., Griffiths & Hunter 

 474). North to Alaska, east to Quebec. 



Eefs. — Carex aqu.atilis Wahl. in Vet. Akad. Nya. Handl. Stockholm 24:165 (180.3), type 

 loc. Lapland: Kiik. in Engler, I'flzr. 4=°: 309, fig. 48a-d (1909), not C. aqiuifili.'i W. Boott in 

 Bot. Cal. 2:241 (1880). 



