THE GENUS CAREX IN CALIFORNIA 



29 



Refs • Carex alma Bailey, Mem. Torr. Club 1: 50 (1889); Parish, Bull. S. Cal. Acad. 

 5: 22 (1906); Kuk. in Engler, Pflzr. 420 : 146 (1909). C. vitrea Holm., Am. Jour. Sci. (4) 17: 

 302-3, f. 5-7 (1904), type from Palm Spgs., Cal., Parish 4144; Parish, 1. c. "C. chrysoleuca Holm," 

 Parish, 1. c. 



14. C. densa Bailey. (Fig. 9). Culms 3-6 dm. high, sharply triangular, 

 stiff, smooth or roughened immediately beneath head, from exceeding to shorter 

 than the leaves; leaf -blades 3-6 mm. wide, the sheaths loose, conspicuously septate 

 dorsally, and thin, hyaline and more or less cross- 

 rugulose ventrally, prolonged and convex at the 

 mouth; head 2-5 cm. long, 1.5 cm. wide, dense, 

 decompound, the clusters closely aggregated, the 

 individual spikes hardly recognizable, the perigynia 

 few, appressed-ascending; bracts inconspicuous, ex- 

 cept 1 or 2 lower ones; scales ovate, dark chestnut 

 brown with green midvein, acute to cuspidate, short- 

 er than perigynia; perigynia 4-4.5 mm. long, 1.5 to 

 1.75 mm. wide, strongly convex dorsally, slightly 

 convex ventrally, ovate or ovate-lanceolate from a 

 round-tapering, substipitate base, straw-colored or at 

 length brownish, strongly several nerved on both 

 faces, narrowly green margined, the upper half of 

 body serrulate, more or less abruptly beaked, the 

 beak more than Yi length of body. 



Type Locality: Mark Wests Creek and Napa, 

 California (Bigelow). 



Dry soil west of the higher ranges of the 

 Sierra Nevada from Santa Clara and Mariposa 

 counties northward into Oregon. 



Locs.: "California," Bigelow, Kellogg & Harford 1066, 

 1067; Crystal Springs, San Mateo Co., Abrams 2444, Elmer 

 4428; Pine Grove, Amador Co., Hansen 1233; Mariposa Co., 

 Congdon; Mark Wests Creek, Bigelow; Snow Creek, Mariposa 

 Co., Congdon; Oakland, Congdon; Witch Creek, Alderson 362; 

 Darrah and Mormon Bar, Mariposa Co., Congdon; Yreka, Siski- 

 you Co., Butler 809; Cloverdale, Sonoma Co., Bolander 3824; 

 Los Guilicos Valley, Sonoma Co., Bioletti; Healdsburg, A. King; 

 Calistoga, Tracy 1637; Cahill Ridge, Seal Cove, Crystal Spgs., 

 Coal Mine Ridge, San Andreas Reservoir, Summit Spgs., San 

 Mateo Co., Dudley; Arnolds Run and Madrone, Santa Clara 



Co.. Dudley; Oakland, Bolander 6204; TrinityCo.. Blankinship; Glorietta, Davy 7843, 7844; Sherwood 

 Valley, Mendocino Co., Davy 5150; "California," Vasey; San Francisco, Brewer 1568 (in part); San 

 Rafael, Blankinship; Sherwood Valley, Mendocino Co., Dudley; Weaverville, Trinity Co., Yates 296; 

 Buck Mt., Humboldt Co., Tracy 4231; Susanville, M. E. Jones; Santa Rosa, Wooton; Belmont, Santa 

 Clara Co., Elmer 2312; Santa Cruz Mts., /. R. Bush; Dunlap, Griffiths 4705; North Fork, Griffiths 

 4479; Russian River, Bolander 3871; Anderson Valley, Bolander 4808; Tamalpais, Bioletti 23; Ren- 

 wood, Sonoma Co., Bioletti 17; San Gregorio Creek, San Mateo Co., Kellogg & Brannan; Sisson, 

 Jepson 51a; Marysville Buttes, R. S. Ferris 640. 



Refs.: Carex densa Bailey, Mem. Torr. Club 1:50 (1889); Parish, Bull. S. Cal. Acad. 5: 

 26 (1906); Kuk. in Engler, Pflzr. 420 : 167 (1909) in part. "C. Brongniartii Kunth." Boott, 111. Car. 

 3: 124 (in part), pi. 402 (1862). C. Brongniartii Kunth. var. densa Bailey, Proc. Am. Acad. 22: 137 

 (1886). C. vicaria var. costala Bailey, Mem. Torr. Club 1: 49 (1889), type from Grants Pass, Oregon. 

 C. chrysoleuca Holm, Am. Jour. Sci. (4) 17: 302 (1904), type from Mariposa, California. C. disticha 

 Hudson," W. Boott in S. Wats. Bot. Cal. 2: 230 (1880). " C. glomerata Thunb." W. Boott, 1. c. 232. 

 "C. paniculata L.," W. Boott, 1. c. 232, in part. 



Carex densa is based on Carex Brongniartii var. densa Bailey. This variety was based on 

 citations of Carex xalapensis Kunth, C. Hoodii Boott "as to Californian specimens,' C. Brongniartii 

 Kunth as figured by Boott 111. Car. pi. 402 and "C. paniculata L." W. Boott in Bot. Cal. 2: 2.32, and 

 specimens were cited "California, Palmer 389 (San Diego Co.) Bigelow, Brewer and others. In 

 raising the variety to specific rank, the first two citations were eliminated, and specimens were cited 

 "California; Palmer, Bigelow, Brewer, Kellogg & Harford 1067." The reference to the C. paniculata 



Fig. 9. Carex densa Bailey. 



a, inflorescence, X 1; 6, scale, X6; 

 c, perigynium, X 6. 



