SEDGE FAMILY 235 



Sect. 28. Acutae Fries. Culms leafy below, apliyllopoilie or phyllopodie. Terminal 1 to 

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

 cylindric. or oblong, closely niany-floivered, sessile or pcdunclcd. Bracts sheathless or rarely 

 short-sheathing, leafy or stjuamiform, often bi-auricuhite and darkened at base. Perigynia 

 membranaceous to coriaceous, piano- or bi-eonvex or turgid, elliptic to obovate, puncticulate, 

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

 Achenes normally lenticular. Stiguias normally 2. 



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

 smooth ; leaf -blades 3 to 7 mm. wide with revohite margiiLS ; 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; perigj'nia 

 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. 



Eefs. — Caeex scopulorum Holm, Am. Jour. Sci. ser. 4, 14:421, f. 1-6, and 422 (1902), 

 tj-pe loc. Clear Creek Canon, Colo., Eolm; Kiik. in Engler, Pflzr. 4"':303, fig. 46p (1909). 



101. C. gymnoclada Holm. Culms sharply triangular, u.sually 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-peduneled, 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 Washing-ton, east to Colorado. 



Loes.— Olandia Mt., Eall 4- Bahcocl- 5248; Alta Mdws., Tulare Co., Geo. B. Grant; 

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

 Brewer 201.5; Strawljerry Creek, Eldorado Co., Brainerd; Mt. Eddy, Egffleston 11569; Bally 

 Mt., near Shasta City, Brewer 1458. 



Befs. — Carex gymnocl.\I)A Holm, Am. Jour. Sci. ser. 4, 14:424 f. 12-14 (1902), type loc. 

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

 alpiiia W. Boott in Bot. Cal. 2:240 (1880^" not P. Boott. C. vulgaris Fries var. hracteosa 

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



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

 rigid; leaf-blades pale gi-een, 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 verj^ many ascending perigynia ; scales lanceolate, blackish ; perigynia 

 ascending, 3 to 3.5 mm. long, greenish straw color, compressed biconvex, 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. 



Loes. — Southern California: San Jacinto Mts., Sail 2484; Bear Valley, San Bernardino 

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

 Mts., Eall <f- Cluindler 7039; Lone Pine, Jcpson 5154. Sierra Nevada: Huckleberry Mdw., 

 Kaweah River, Eopping 465; Grant Park, Dudlei/ 1204; Sonora Pass, A. L. Grant 390; Tallac, 

 Brainerd 59; Je^s Valley, Modoc Co., Griffiths cj- Hunter 432; MeCloud, Dudley. 



Refs. — Carex nebrasken.sis Dew. Am. Jour. Sci. ser. 2, 18:102 (1854), type from Nebr., 

 Hayden; Mackenzie, Ervthea 8:73, fig. 41 (1922). C. jacintoensis Parish, Bu'u. S. Cal. Acad. 

 4:110, pi. 16 (1905), type loc. San Jacinto Mts., Eall 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 

 solitarj^; pistillate spikes 4 to 6, linear, 1 to 4 em. long, the numerous perigynia 

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

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

 abruptly black apiculate tipped. 



