SEDGE FAMILY 221 



strongly brownish hyaline-margined at base, spreading; scales ovate, shorter 

 than the perigynia, acute or short-cuspidate, brown ; perigynia ascending, ovate- 

 lanceolate, thin, 3 to 4.5 mm. long, wing-margined, serrulate above, tapering into 

 a beak 1 mm. long, the tip slender, terete. 



Wet meadows and copses : San Bernardino Mts. ; Sierra Nevada from Tulare 

 Co. to Lassen Co.; North Coast Kanges from Mendocino Co. to Siskiyou Co. 

 North to Alaska, east to Colorado. 



Loes. San Bernardino Mts.: Bear Valley, Parish 1573. Sierra Nevada: Kaweah Peaks, 

 Dudley 2081; upper San Joaquin Eiver, Madera Co., Congdon; Heteh-Hetchy, Jepson 3477 ; Cow 

 Creek, Tuolumne Co., Jepson 6518; Truckee, L. S. Smith 673; Dewitts, Lassen Co., Davy 3298. 

 North Coast Ranges: Sherwood Valley, Dudley; Beebe's Eanch, Humboldt Co., Tracy 3373; 

 Sisson, Goldsmith 13. 



Eefs. CAREX ATHEOSTACHTA Olney, Proc. Am. Acad. 7:393 (1868), type loc. Yosemite 

 Valley, Brewer 1650; Kiik. in Engler, Pflzr. 4 20 :193, fig. 32A, B (1909); Mackenzie, Erythea 

 8:43, fig. 18 (1922). C. bonplandii Bailey, Proe. Am. Acad. 22:152 (1886) in part, not 

 Kunth. C. athrostachya Olney var. minor Olney in Bot. King 367 (1871), type from Cal. 



44. C. f estivella Mackenzie. Culms 3 to 10 dm. high ; leaf-blades 2 to 6 mm. 

 wide; spikes 5 to 20, ovoid, 5 to 12 mm. long, densely aggregated into a head 

 12 to 25 mm. long; bracts inconspicuous; scales ovate, obtuse to acutish, dark 

 chestnut to brownish-black ; perigynia ovate, appressed, lightly nerved ventrally, 

 the beak y 2 length of body. 



High montane, 7000 to 10,000 ft. : Sierra Nevada from Eldorado Co. to 

 Tulare Co. ; White Mts. North to Washington, east to Colorado. 



Loes. Strawberry Creek, Eldorado Co., Braincrd 226 in part; Sonora Pass, Breiver 1864; 

 Kaweah Mdw., Dudley 2208. Poison Creek, White Mts., Jepson 7372. 



Eef. CAREX FESTIVELLA Mackenzie, Bull. Torr. Club 42:609 (1915), type loc. Albany Co., 

 Wyo., Nelson 3275. 



45. C. nubicola Mackenzie. Culms 1 to 4 dm. high ; leaf -blades 1.5 to 4 mm. 

 wide ; head 9 to 18 mm. long, the 4 to 7 densely aggregated ovoid or subglobose 

 spikes 5 to 9 mm. long, the perigynia ascending with spreading beaks; bracts 

 inconspicuous ; scales ovate, acute, blackish ; perigynia ovate, strongly winged, 

 abruptly contracted into a beak y 2 length of body. 



Summits of high mountains: Mt. Dana (our only known locality). North to 

 Alberta, east to Colorado. 



Eefs. CAREX NUBICOLA Mackenzie, Bull. Torr. Club 36:480 (1909). C. f estiva Dew. var. 

 decumbens Holm, Am. Jour. Sci. ser. 4, 16:20, 26 (1903), type from Pagosa Peak, Colo., 

 Baker 232, not C. decumbens Ehrh. C. festtwa Dew. var. haydeniana W. Boott in Bot. Cal. 

 2:234 (1880), type loc. Mt. Dana, Bolander 5074. 



46. C. pachystachya Cham. Culms 3 to 10 dm. high ; leaf-blades 2 to 4 mm. 

 wide; spikes 4 to 8, densely aggregated or more or less separate, ovoid or sub- 

 orbicular, 5 to 8 mm. long, with 10 to 30 at length spreading perigynia; scales 

 ovate, dark colored; perigynia ovate, 3.5 to 5 mm. long, olive-brown, the beak 

 y 2 length of body. 



Humboldt Co. to Siskiyou Co. North to the Aleutian Isls., east to Colorado. 

 It has a wide altitudinal as well as a wide geographical range, and individual 

 plants vary very considerably. 



Loes. Beebe's Eanch, Humboldt Co., Tracy 3390; Mt. Eddy, Heller 12468; Mt. Shasta, 

 Pringle; Medicine Lake, Goldsmith 28a. 



Eefs. CAKEX PACHYSTACHYA Cham, ex Steud, Synop. Cyper. 197 (1855), type loc. Unalaska. 

 C. f estiva Dew. var. pachystachya Bailey, Mem. Torr. Club 1:51 (1889). C. olympica 

 Mackenzie, Bull. Torr. Club 43:610 (1916), n. Cal. to Wash, and B. C. 



47. C. abrupta Mackenzie. Culms 4 to 6 dm. high; leaf-blades 1.5 to 2.5 

 mm. wide; head suborbicular, 9 to 17 mm. long, the 4 to 8 spikes ovoid, 5 to 

 8 mm. long, the perigynia ascending ; scales ovate, obtuse, chestnut-brown ; peri- 

 gynia oblong-lanceolate, 3.75 to 4 mm. long, soon brownish tinged, abruptly 

 contracted into the beak. 



High montane, 5600 to 10,000 ft., mountains of Southern California and 

 Sierra Nevada; seacoast, Humboldt Co. 



