PIPER—-FLORA OF THE STATE OF WASHINGTON. 559 
3a. Chrysothamnus nauseosus graveolens (Nutt.). 
Chrysocoma graveolens Nutt. Gen. 2: 136. 1818. 
Bigelovia gravolens A. Gray, Proc. Am. Acad. 8: 645. 1873. 
Chrysothamnus speciosus Nutt. Trans. Am. Phil. Soc. 7: 323. 1840. 
Type Locauity: ‘On the banks of the Missouri in denudated soils.” 
hanGE: British Columbia to Dakota, south to California and New Mexico. 
SPECIMENS EXAMINED: North Yakima, Henderson, October 5, 1892; Watt, August, 1895; 
Wenache, Whited 1327; Rattlesnake Mountains, Cotton 481; White Bluffs, Dunn, Septem- 
ber 13, 1902; Egbert Springs, Sandberg & Leiberg 344; Chelan, Elmer 851; Coulee City, 
Lake & Hull 733; Spokane, Sandberg, McDougal, & Heller 913. 
ZONAL DISTRIBUTION: Upper Sonoran. 
4. Chrysothamnus bloomeri Greene, Erythea 3: 115. 1895. 
Aplopappus bloomeri A. Gray, Proc. Am. Acad. 6: 541. 1865. 
TypE Locauity: “Mount Davidson, Nevada.” 
Rance: Washington to California and Nevada. 
SPECIMENS EXAMINED: Mount Adams, Suksdorf 190; Yakima Region, Brandegee 843; 
Simcoe Mountains, Howell in 1880; Big Klickitat River Cotton 1490; without locality, 
Vasey in 1889; Mitchell Creek, Okanogan County, Gorman 835 (erroneously referred to 
Aplopappus watsoni); Mount Adams, Henderson & Flett 1068; Falcon Valley, Suksdorf, 
October 3, 1881. 
ZONAL DISTRIBUTION: Arid Transition. 
ERICAMERIA. 
1. Ericameria nana Nutt. Trans. Am. Phil. Soc. 7: 319. 1840. 
Ericameria resinosa Nutt. loc. cit. 
Aplopappus nanus D.C. Eaton in Wats. Bot. King Explor. 159. 1871. 
Type Locauity: “On shelving rocks on the Blue Mountains of Oregon.” Collected by 
Nuttall. 
Rance: Washington to Idaho and Nevada. 
SPECIMENS EXAMINED: West Klickitat County, Suksdorf 338; mountains north of 
Kllensburg, Whited 862; North Yakima, Mrs. Steinweg in 1894; Yakima Region, 3ran- 
degee 845; Chelan, Elmer 855; Alkali Lake, Sandberg &: Leiberg 418; cliffs at the mouth of 
the Tukanon, Piper. . 
ZONAL DISTRIBUTION: Arid Transition and Upper Sonoran. 
HOOREBEKIA. 
Bracts of the involucre rigid. 
Rays inconspicuous or wanting; leaves coriaceous or nearly so. 
Heads large, solitary or few, discoid........-.-..---------- 1. H. carthamoides. 
Heads middle-sized, racemose; rays small............-.--- 2. H. racemosa, 
Rays conspicuous. 
Leaves membranaceous, serrate, hirsute or villous... 2... ..- 3. H. hirta. 
Leaves coriaceous, entire, glabrous..............2.-2--.-- 4. H. hallit. 
Bracts of the involucre not rigid; leaves entire. 
Plants herbaceous, low. 
Involucre glandular; stems leafy..............-.-.-.-.-- 5. H. lyallii. 
Involucre woolly; stems naked or nearly so... ---- -- ..... 6. H. lanuginosa. 
Plants shrubby, at least at base. 
Leaves linear, very narrow, scabrous..............-.----- 7. H. stenophylla. 
Leaves lanceolate or oblong-spatulate, puberulent........_ - 8. H. greene. 
1. Hoorebekia carthamoides (Hook.) 
Pyrrocoma carthamoides Hook. Fl. Bor. Am. 1: 307. pl. 107. 1838. 
Aplopappus carthamoides A. Gray, Proc. Acad. Phila. 1863: 65. 1863. 
