PIPER FLORA OF THE STATE OF WASHINGTON. 559 



3a. Chrysothamnus nauseosus graveolens (Niitt.)- 



Ckrysocoma graveolens Nutt. Gen. 2: 136. 1818. 



Bigelovia gravolens A. Gray, Proc. Am. Acad. 8: 645. 1873. 



Chrysothamnus speciosus Nutt. Trans. Am. Pliil. Soc. 7: 323. 1840. 



Type locality: "On the banks of the Missouri in denudated .soils." 



Kange: British Columbia to Dakota, south to Cahfornia and New Mexico. 



Specimens examined: North Yakima, /?«7M?e/so/i, October 5, 1892; Watt, August, 1895; 

 Wonache, Whitedl327 ; Rattlesnake Mountains, Cotton 481; White Blufl's, Z'wrm, Septem- 

 ber 13, 1902; Egbert Springs, Sandberg cS; Leiherg 344; Chelan, Elmer 851; Coulee Ci'.}^ 

 Lake ci' Hull 733; Spokane, Sandberg, McDougal, cfc 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 locality: "Mount Davidson, Nevada." 



Range: 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 Adsuns, Henderson d; Fleti 1068; Falcon \ -edhy, Sulcsdorf, 

 October 3, 1881. 



Zonal distribution: Arid Transition. 



ERICAMERIA. 



1. Ericaineria 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 locality: "On shelving rocks on the Blue Mountains of Oregon." Collected by 

 Nuttall. 



Range: Washington to Idaho and Nevada. 



Specimens examined: West Klickitat County, Suksdorf 338; mountains north of 

 Ellensburg, Whited 862; North Yakima, Mrs. Steinweg in 1894: Yakima Region, Bran- 

 degee 845; Chelan, Elmer 855: Alkali Lake, Sandberg dc Leiberg 418; clifl's at the mouth of 

 tile Tukanon, Piper. 



ZoN2\L 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 1.7/. carthamoides. 



Heads middle-sized, racemose; rays small 2. H. racemosa. 



Rays conspicuous. 



Leaves membranaceous, serrate, hirsute or villous 3. H. hirta. 



Leaves coriaceous, entire, glabrous A. H. hallii. 



Bracts of the involucre not rigid; leaves entire. 

 Plants herbaceous, low. 



Involucre glandular; stems leafy 5. //. Igallii. 



Involucre woolly; stems naked or nearly so G. H. lanuginosa. 



Plants shnibby, at least at base. 



Leaves linear, very narrow, scabrous 7. H. stenopJiylla. 



Leaves lanceolate or oblong-spatulate, puberulent S. H. greenei. 



1. Hoorebekia carthamoides (Hook.) 

 Pyrrocoma carthamoides Hook. Fl. Bor. Am. 1: 307. pi. 107. 1833. 

 Aplopappus carthamoides A. Gray, Proc. Acad. Phila. 1863: 65. 1863. 



