214 CYPERACEAE 



Sci. ser. 4, 17:302, figs. 5-7 (1904), type from Palm Sprs., Mt. San Jacinto, Parish 4144. 

 C. chrysoleuca Parish, Bull. S. Cal. Acad. 5:22 (1906), not C. chrysoleuca Holm. 



14. C. densa Bailey. (Fig. 30g-i.) Culms 3 to 6 dm. high, smooth or 

 roughened above, from exceeding to shorter than the leaves; leaf-blades 3 to 

 6 mm. wide, the sheaths septate dorsally, and thin, hyaline and more or less 

 cross-rugulose ventrally, prolonged and convex at the mouth ; head 2 to 5 cm. 

 long; bracts inconspicuous, except 1 or 2 lower ones; perigynia 3.5 to 4.5 mm. 

 long, strongly convex dorsally, ovate or ovate-lanceolate from a round-tapering 

 base, narrowly green-margined, serrulate above middle, the beak more than y 2 

 length of body. 



Dry soil, cismontane : Sierra Nevada from Mariposa Co. northward ; Marys- 

 ville Buttes; Coast Ranges from Santa Clara Co. northward. North to Oregon. 



Locs. Sierra Nevada: Snow Creek, Mariposa Co., Congdon; Pine Grove, Amador Co., 

 Hansen 1233. Coast Ranges: Santa Cruz Mts., J. B. Bush; Crystal Sprs., San Mateo Co., 

 Abrams 2444; Oakland, Bolander 6204; Calistoga, Tracy 1637; Sherwood Valley, Davy 5150; 

 Buck Mt, Humboldt Co., Tracy 4231; Weaverville, Yates 296; Sisson, Jepson 51a. 



Befs. CAREX DENSA Bailey, Mem. Torr. Club 1:50 (1889), type loe. Mark West Creek, 

 Sonoma Co., Bigelow; Mackenzie, Erythea 8:29, fig. 9 (1922). C. brongniartii Kunth, var. 

 densa Bailey, Proc. Am. Acad. 22:137 (1886). C. brongniartii Boott, 111. Car. 3:124, pi. 402 

 (1862), in part, not Kunth, C. chrysoleuca Holm, Am. Jour. Sci. ser. 4, 17:302 (1904), type 

 from Mariposa, Congdon. C. disticha W. Boott in Bot. CaL 2:230 (1880), not Huds. C. 

 glomerata W. Boott, l.c. 232, not Thunb. C. paniculata W. Boott, Le. 232 in part, not L. 



15. C. vicaria Bailey. Culms 3 to 6 dm. high, exceeding the leaves, rough 

 above ; leaf -blades 3 to 4.5 mm. wide, the sheaths tight, not conspicuously septate 

 dorsally, thin-hyaline and more or less cross-rugulose ventrally, short-prolonged 

 and convex at mouth ; head 1.5 to 3 cm. long ; bracts inconspicuous except 1 or 2 

 lower ones; perigynia 3 to 3.5 mm. long, ovate from a rounded base, green- 

 margined, serrulate above middle, the beak y 2 length of body. 



Marshes, Mendocino Co. (Round Valley, Chesnut 108). North to Wash- 

 ington. 



Befs. CAREX VICARIA Bailey, Mem. Torr. Club 1:49 (1889), type from Ore., E. Hall. C. 

 brongniartii Bailey, Proc. Am. Acad. 22:137 (1886), not Kunth. 



16. C. breviligulata Mackenzie. Culms 3 to 6 dm. high, exceeding leaves, 

 rough above ; leaf -blades 3 to 4.5 mm. wide, the sheaths tight, not conspicuously 

 septate dorsally, thin-hyaline and more or less cross-rugulose ventrally, truncate 

 at mouth; head 1.5 to 3.5 cm. long; bracts usually not conspicuous; perigynig 

 3.25 to 3.75 mm. long, ovate from a round-tapering base, green-margined, serru- 

 late from middle, the beak y 2 length of body. 



Marshes and swales : North Coast Ranges ; Sierra Nevada. North to Oregon. 



Locs. Santa Rosa, Wooton; Round Valley, ne. Mendocino Co., Chesnut 285; Susanville, 

 Jones; North Fork, Fresno Co., Griffiths 4479. 



Refs. CAREX BREVILIGULATA Mackenzie, Erythea 8:92 (1922). C. vicaria var. costata 

 Bailey, Mem. Torr. Club 1:49 (1889), type from Grant's Pass, Ore., Henderson 1477. 



17. C. dudleyi Mackenzie. Culms 3 to 7 dm. high, rough above, exceeding 

 leaves; leaf -blades 4 to 7 mm. wide, the sheaths tight, inconspicuously septate 

 dorsally, white-hyaline and scarcely cross-rugulose ventrally, the ligule as long 

 as wide; head 2 to 3.5 cm. long; bracts setaceous, the lower conspicuous; peri- 

 gynia narrowly ovate from a rounded base, brownish-yellow with green margin, 

 nerved ventrally, the beak serrulate. 



Coast Ranges from Monterey Co. to Lake Co. Apparently local. 

 Locs. Glen Ellen, Sonoma Co., Bioletti 19; Scott Valley, Lake Co., Blankinship. 

 Ref. CAREX DUDLEYI Mackenzie, Erythea 8:30 (1922), type loc. Tassajara Hot Sprs., 

 Monterey Co., Elmer 2132. 



Sect. 8. Pauiculatae Kunth. Densely or loosely cespitose. Culms not flattened. Opaque 

 part of leaf -sheaths strongly red-dotted. Spikes numerous, small, androgynous or pistillate, 

 but never gynaecandrous, the lower compound or decompound. Bracts usually inconspicu- 

 ous. Perigynia thick, high convex on the dorsal and often somewhat convex on the ventral 

 face, ascending or spreading, coriaceous, spongy at base, stipitate, narrowly margined, 

 more or less nerved, conspicuously rough-beaked, the beak bidentate. Achenes lenticular. 

 Stigmas 2. 





