PIPER FLORA OF THE STATE OF WASHINGTON. 589 



Type locality: '' In America bor. ad Rocky Mountains, prope Spokan et Kettlo Falls." 

 Collected by Douglas. 



Range: British Columbia and Montana to California and Utah. 



Specimens examined: Cascade Mountains, 49°, Lyall in 1859; Cascade Mountains to 

 Colville, Lyall in 1860; Mount Adams, Henderson, August 10, 1892; Suksdorf 35; Yakima 

 County, Brandegee; Loomis, Elmer 589; Box Canyon, Kreager 388. 



Zonal distribution: Arid Transition. 



11. Artemisia lindleyana Besser; Hook. Fl. 1: 322. 1834, and Abrot. 35. 1834. 

 Type locality: "Northwest coast of America." Collected by Douglas. 

 Range: Washington and Oregon. 



Specimens examined: West Klickitat County, Suksdorf \9Z, 1611; banks of Columbia 

 at Alder Creek, Brandegee 908; Pasco, Henderson; Bingen, Pifer 6450. 



Along with the original description of the species, Besser describes four subspecies based 

 wholly on leaf contour, which character in this group we consider worthless. Besser's sub- 

 species are named legitimn, brevifolia, subdentata, and coronopus. 



12. Artemisia sxiksdorfii Piper, Bull. Torr. Club 28: 42. 1901. 



Artemisia vulgaris littoralis Suksdorf, Deutsch. Bot. Monatss. 18: 98. 1900, not A. litto- 



ralis Retz. 

 Type locality: Fairhaven, Washington. 

 Range: Seacoast, British Columbia to California. 



Specimens examined: Montesano, Heller 3976; Fairhaven, Piper 2808; Henderson 

 in 1892; Seattle, Piper; Chuckanut Bay, Suksdorf 9S0. 

 Zonal distribution: Humid Transition. 



13. Artemisia tridentata Nutt. Trans. Am. Phil. Soc. 7: 398. 1841. 



Common sagebrush. 



Type locality: "Plains of the Oregon and Lewis River." Collected by Nuttall. 



Range: Washington to Montana, Colorado, and eastern California. 



Specimens examined: North Yakima, Watt, August, 1895; Leckenbij; Mount Adams, 

 Suksdorf 72; plains of the Columbia and Lewis rivers, Nuttall; Okanogan, Cooper in 1853; 

 Wenache, Whited 1332; Veshast'in, Sandberg t& Leiberg 470; Rattlesnake Mountains, Z)«rm, 

 September 10, 1902; Moses Coulee, Lake cfe Hull 717; Chelan, Elmer 850; without locality, 

 Vasey 480. 



Zonal distribution: Upper Sonoran. 



For illustrations of Artemisia tridentata see Plates TV and VI, facing pages 25 and 36. 



14. Artemisia arbuscula Nutt. Trans. Am. Phil. Soc. 7: 398. 1841. 

 Type locality: "On the arid plains of upper California, on Lewis River." 

 Range: Washington to Wyoming and California. 



Specimens examined: Wenache Mountains, Whited 8^1, Cotton 1795, 1796. 



Two specimens collected by Cotton in the Wenache Mountains, nos. 15(55 and 1798, 

 represent a plant intermediate in characters between A. arbuscula and A. tridentata, and 

 this is said to occupy a belt above the latter and below the former. It is probably an 

 undescribed species, but better material is needed. 



15. Artemisia rigida A. Gray (Nutt.) Proc. Am. Acad. 19: 49. 1884. 



SCABLANU sagebrush. 



Artemisia trifida rigida Nutt. Trans. Am. Phil. Soc. 7: 398. 1841. 



Type locality: "The plains of Lewis River." Collected by Nuttall. 



Range: Idaho, eastern Washington, and eastern Oregon. 



Specimens examined: Mount Adams, Suksdorf 72; North Yakima, Watt, August, 

 1895; Leckenby; Wenache, Whited 1332; Chelan, Elmer 850; Moses Coulee, Lake cfc Hull 

 717; Okanogan County, Cooper in 1853; Peshastin, Sandberg & Leiberg 470; plains of 

 Columbia and Lewis rivers, Nuttall; without locality, Va^ey 480; Rock Creek, Cotton 966; 

 Wawawai, Piper 3814, 3815; Fort Simcoe, Cotton 1564. 



Zonal distribution : Arid Transition. 



