SEDGE FAMILY 235 



Sect. 28. Acutae Fries. Culms leafy below, aphyllopodie or phyllopodic. Terminal 1 to 

 several spikes staminate (rarely gynaecandrous), linear, the others pistillate, linear to 

 cylindrie or oblong, closely many-flowered, sessile or peduncled. Bracts sheathless or rarely 

 short-sheathing, leafy or squamiform, often bi-auriculate and darkened at base. Perigynia 

 membranaceous to coriaceous, piano- or bi -convex or turgid, elliptic to obovate, puneticulate, 

 margined, beakless or abruptly minutely beaked, the orifice entire to deeply bidentate. 

 Achenes normally lenticular. Stigmas normally 2. 



100. C. scopulorum Holm. Culms 1 to 4 dm. high, stiff, sharply triangular, 

 smooth ; leaf -blades 3 to 7 mm. wide with revolute margins ; terminal spike stam- 

 inate or androgynous; lateral spikes 2 or 3, approximate, erect, sessile or short- 

 stalked, pistillate or androgynous, 1 to 2.5 cm. long, 6 to 7 mm. wide ; perigynia 

 2.5 to 3.5 mm. long, soon turgid, papillose, spreading, nerveless, with short but 

 prominent entire beak. 



Sierra Nevada in Tulare Co. (nw. of Whitney Mdws., Coville & Funston 

 1706). North to Washington, east to Colorado. 



Befs. CAREX SCOPULORUM Holm, Am. Jour. Sci. ser. 4, 14:421, f. 1-6, and 422 (1902), 

 type loc. Clear Creek Canon, Colo., Holm; Kiik. in Engler, Pflzr. 4 20 :303, fig. 46F (1909). 



101. C. gymnoclada Holm. Culms sharply triangular, usually roughened 

 above, developing some short blades the first year and in the flowering (second) 

 year 2 to 4 erect blades, 2.5 to 4 mm. wide, flat with revolute margins ; staminate 

 spike short-peduncled, 5 to 15 mm. long; pistillate spikes 2 or 3, 'approximate, 

 oblong or linear-oblong, 5 to 25 mm. long; perigynia appressed, obovoid, plano- 

 convex, not turgid, 3 mm. long, often dark tinged, nerveless, granular, the beak 

 straight, 0.25 mm. long. 



High montane, 6000 to 9000 ft., Sierra Nevada from Tulare Co. to Siskiyou 

 Co., thence west to Trinity Co. North to Washington, east to Colorado. 



Locs. Olancha Mt., Hall $ Babcock 5248; Alta MdAva, Tulare Co., Geo. B. Grant; 

 Crescent Lake, Mariposa Co., Congdon; Sonora Pass, A. L. Grant 267, 389, 411; Silver Mt., 

 Brewer 2015; Strawberry Creek, Eldorado Co., Brainerd; Mt. Eddy, Eggleston 11569; Bally 

 Mt., near Shasta City, Brewer 1458. 



Eefs. CAREX GYMNOCLADA Holm, Am. Jour. Sci. ser. 4, 14:424 f. 12-14 (1902), type loc. 

 Hurricane Creek, Ore., Cusick ; Mackenzie, Erythea 8:73, fig. 40 (1922). C. vulgaris Fries var. 

 alpina W. Boott in Bot. Cal. 2:240 (1880), not F. Boott. C. vulgaris Fries var. bracteosa 

 Bailey, Proc. Am. Acad. 22:81 (1886), type from Ebbetts Pass, Brewer 2015. 



102. C. nebraskensis Dew. (Fig. 34d-f.) Culms 2.5 to 10 dm. high, stout, 

 rigid; leaf -blades pale green, 3 to 8 mm. wide, flat, the sheaths nodulose; stam- 

 inate spikes 1 or 2, peduncled, 1.5 to 3.5 cm. long ; pistillate spikes 2 to 5, oblong, 

 sessile or short-peduncled, 1.5 to 6 cm. long, contiguous or the lower separate, 

 with very many ascending perigynia; scales lanceolate, blackish; perigynia 

 ascending, 3 to 3.5 mm. long, greenish straw color, compressed bi-convex, ribbed. 



Meadows and swamps, 4000 to 9700 ft. : mountains of coastal Southern Cali- 

 fornia ; Sierra Nevada from Tulare Co. to Siskiyou Co. ; Panamint Mts. North 

 to British Columbia, east to Kansas. 



Locs. Southern California: San Jaeinto Mts., Hall 2484; Bear Valley, San Bernardino 

 Mts., Abrams 2925 (in part); Mt. Pinos, Hall 6519. Inyo Co.: Panamint Canon, Panamint 

 Mts., Hall $ Chandler 7039; Lone Pine, Jepson 5154. Sierra Nevada: Huckleberry Mdw., 

 Kaweah Eiver, Hopping 465; Grant Park, Dudley 1204; Sonora Pass, A. L. Grant 390; Tallac, 

 Brainerd 59; Jess Valley, Modoc Co., Griffiths # Hunter 432; McCloud, Dudley. 



Refs. CAREX NEBRASRENSIS Dew. Am. Jour. Sci. ser. 2, 18:102 (1854), type from Nebr., 

 Hayden; Mackenzie, Erythea 8:73, fig. 41 (1922). C. jacintoensis Parish, Bull. S. Cal. Acad. 

 4:110, pi. 16 (1905), type loe. San Jaeinto Mts., Hall 2483, 



103. C. paucicostata Mackenzie. Culms slender, 2.5 to 4 dm. high; leaf- 

 blades light green, 2 to 4 mm. wide, flat or channeled at base; staminate spike 

 solitary ; pistillate spikes 4 to 6, linear, 1 to 4 cm. long, the numerous perigynia 

 appressed-ascending ; scales oblong, obtuse or acutish, blackish with lighter cen- 

 ter; perigynia 2 mm. long, glaucous-green, the upper empty part inconspicuous, 

 abruptly black apiculate tipped. 



