SEDGE FAMILY 215 



18. C. diandra Schrank. Culms 3 to 7 dm. high, slender; leaf-blades can- 

 aliculate at base ; sheaths not copper-colored at mouth ; head 2.5 to 5 cm. long ; 

 scales acute, brownish; perigynia round-truncate at base, the beak serrulate. 



Wet meadows, very local: San Bernardino Valley and Oriole Lake, Tulare 

 Co. North to Alaska, east to Newfoundland. 



Eefs. CAREX DIANDRA Schrank, Acta Acad. Mogunt. 49 (1782), type from s. Bavaria, 

 Germany; Kiik. in Engler, Pflzr. 4 20 :175, fig. 28A-D (1909). C. bernardina Parish, Bull. S. 

 Cal. Acad. 5:24, pi. 21 (1906), type loc. San Bernardino Valley, Parish 4600. 



19. C. cusickii Mackenzie. (Fig. 30J-1.) Culms stout, 7 to 12 dm. high; 

 leaf-blades flat with slightly revolute margins, the sheaths copper-tinged at 

 mouth; head 4 to 8 cm. long; scales chestnut-tinged; perigynia truncate at base, 

 the beak setulose-serrulate. 



Wet meadows near the coast from San Francisco to Del Norte Co. Rare. 



North to British Columbia, east to Montana. 



Locs. San Francisco, Bolander 1568 (in part) ; Crescent City, Dudley. 



Kefs. CAREX CUSICKII Mackenzie in Piper & Beattie, Fl. Nw. Coast 72 (1915) ; Erythea 



8:31, fig. 10 (1922). C. teretiuscula Good. var. ampla Bailey, Mem. Torr. Club 1:53 (1889), 



type from Burnt Eiver, Ore., Cusick 1331. C. paniculata W. Boott in Bot. Cal. 2:232 (1880) 



in part, not L. 



Sect. 9. Stenorhynchae Holm. Densely cespitose or with more or less elongated rootstocks. 

 Culms triangular or somewhat flattened. Opaque part of leaf -sheaths usually transversely 

 rugulose or red-dotted. Spikes few to many, androgynous or pistillate, but never gynae- 

 candrous, the lower simple to compound. Bracts little developed. Perigynia plano-convex, 

 yellowish or yellowish-brown, appressed-ascending to spreading, not thick-walled but strongly 

 spongy at base, stipitate, strongly many-nerved, the margins nearly obsolete on the lower 

 half, conspicuously beaked, the beak bi dentate. Acheues lenticular. Stigmas 2. 



20. C. jonesii Bailey. Culms 2 to 6 dm. high, slender; leaf -blades 1 to 2 mm. 

 wide ; opaque part of sheath white, not cross-rugulose, truncate at mouth ; head 

 8 to 18 mm. long, the larger spikes with 5 to 10 ascending perigynia; scales 

 exceeding or shorter than the perigynia, ovate, dark brown; perigynia ovate- 

 lanceolate, 3 to 4 mm. long, 1.5 mm. wide, the beak very slightly serrulate, % 

 length of body. 



High mountains, 5000 to 7200 ft. : San Bernardino Mts. ; Sierra Nevada from 

 Tulare Co. to Siskiyou Co. North to Washington, east to Montana. 



Locs. Bluff Lake, San Bernardino Mts., Parish 3273; Kaweah Mdw., Dudley 2207; Kings 

 Eiver Canon, Dudley 3191; Peregoy MdAv., Yosemite Park, Jepson 4335; Sonora Peak, A. L. 

 Grant 412; Truckee Eiver, Davy; Mt. Shasta, Goldsmith 37. 



Eefs. CAREX JONESII Bailey, Mem. Torr. Club 1:16 (1889), type loc. Soda Sprs., Nevada 

 Co., Jones; Mackenzie, Erythea 8:32, fig. 11 (1922). C. illota Parish, Bull. S. Cal. Acad. 5:52 

 (1906), not Bailey. C. bonplandii Kunth. var. angustifolia W. Boott in Bot. Cal. 2:233 (1880) 

 as to spms. with androgynous spikes, not F. Boott. 



21. C. nervina Bailey. (Fig. 31a-c.) Culms 3 to 9 dm. high, strongly aphyl- 

 lopodic, slightly flattened in drying ; opaque part of sheaths olive-tinged, truncate 

 or concave at the mouth ; head 1.5 to 3 cm. long, the larger with 6 to 12 ascending 

 perigynia, the staminate flowers rarely conspicuous ; scales ovate, brownish ; peri- 

 gynia ovate-lanceolate, 3.5 to 4 mm. long, the beak smoothish, 1 mm. long, the 

 teeth erect. 



High mountains, 4000 to 7000 ft., Sierra Nevada from Tulare Co. to Siskiyou 

 Co. North to southern Oregon. 



Locs. Giant Forest, Dudley 2998; Lake Tenaya, Congdon; Emigrant Gap, M. E. Jones 

 3533; Craggy Peak, Siskiyou Co., Dudley. 



Eefs. CAREX NERVINA Bailey, Bot. Gaz. 10:203, pi. 3, figs. 6-8 (1885), type loc. Summit 

 Camp, Placer Co., Kellogg; Mackenzie, Erythea 8:33, fig. 12 (1922); not C. nervina Parish, 

 Bull. S. Cal. Aead. 5:26 (1906). 



22. C. stipata Muhl. (Fig. 31d-f.) Culms 3 to 12 dm. high, rather weak, 

 sharply triangular, strongly serrulate above ; leaf -blades 4 to 8 mm. wide, flat, 

 flaccid, the sheaths strongly septate dorsally, the opaque part thin, quickly 

 broken, cross-rugulose; head 3 to 10 cm. long, yellowish-brown; scales ovate- 



