(471) 
8. ERIcAMERIA Monactis (A. Gray) McClatchie, Erythea 2: 124. 
1894. 
Aplopappus monactis A. Gray, Proc. Am. Acad. 19: 1. 1883. 
Acamptopappus microcephalus Jones, Contr. W. Bot. no. 8: 33. 
1898. 
Tumionella monactis Greene, Leaflets 1: 173. 1906. 
Chrysothamnus corymbosus Elmer, Bot. Gaz. 39: 50. 1905. 
Type locality: ‘““Borders of the Mohave Desert, S. E. Cali- 
fornia.” 
Distribution: Mohave Desert from Owens Valley south to 
Cajon Pass. This species has also been reported as occurring on 
the coastal slope in the vicinity of West Riverside. Lower Sonoran. 
Specimens examined: Mohave River, Palmer 199 (type); head 
of Cajon Pass, S. B. & W. F. Parish 905; north slopes of San 
Bernardino Mountains, S. B. & W. F. Parish 1246; Mohave 
Desert, Pringle, May, 1882; Lancaster, Elmer 3668; near Sprague’s 
Ranch, Liebre Mountains, Dudley 4370; near Barstow, Hall 6160; 
Willow Springs, Antelope Valley, Abrams && McGregor 4109. 
7. CHRYSOTHAMNUS. 
Leaves resinous-punctate, terete. 
Outer involucral-bract with a distinct greenish subapical spot. 
1. C. teretifolius. 
Outer involucral bracts pale, without greenish spot. 2. C. paniculatus. 
Leaves not resinous-punctate, plane or canaliculate. 
Branches not tomentose; leaves glabrous except on the margins. 
Stems glutinous; leaves not ciliate, often sparse. 
3. C. mohavensts. 
Stems not glutinous, leafy; leaves short-ciliate on the margins. 
4. C. stenophyllus. 
Branches more or less tomentose. 
Heads 5-flowered. 
Bracts abruptly contracted to a spreading setiform tip. 
5. C. ceruminosus. 
Bracts acute or acuminate. 6. C. occtdentalts. 
Heads 9-flowered; a few of the outer bracts foliaceous. 
7. G. Parryt. 
I. CHRYSOTHAMNUS TERETIFOLIUS (Dur. & Hilg.) Hall, Univ. 
Calif) Pub: Bot. $2)57-:" 1907: 
Linosyris teretifolia Dur. & Hilg. Pacif.R. Rep. 5: 9, pl. 7. 1855. 
Bigelovia teretifolia A. Gray, Proc. Am. Acad. 8: 644. 1873. 
