PIPER FLORA OF THE STATE OF WASHINGTON. 589 



Tyi'K LocALiTv: "In Amurica hoi. jul Uocky Mountains, propc Si)()kan ct Keltic Falls." 

 Collected by Douglas. 



Range: British Columbia and Montana to California and Utah. 



Specimens examined: Cascade Mountains, -19°, />//«// in 1859; Cascade, Mountains to 

 Colville, Lyall in 1860; Mount Adams, //enJc/.w/i, August 10, 1892; Suhsdorf 3')-, Yakima 

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



Zonal distribution: Arid Transition. 



11. Artemisia lindleyana Besser; Ilook. Fl. 1: 322. 1834, and Abrot. 35. 1S34. 

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

 Range: Washington and Oregon. 



Specimens examined: West Klickitat County, 6' (/i-.sy/w/ 193, KUl: hanks of Columbia 

 at Alder Creek, Brandegee 908; Pasco, Henderson; Bingen, Piper G450. 



Along with the original description of the species, Besser describes four subspecies i)ased 

 wholly on leaf contour, which character in tliis group we consider wortliK'ss. Bessc^r's sul)- 

 species are named legitiinn., hrevifolia, snhdenfata, and coronopus. 



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



Artemisia vulgaris liitoralis Suksdorf, Deutsch. Bot. Monatss. 18: 9S. 1900, not A. litto- 



ralis Retz. 

 Type locality: Fairhaven, Washington. 

 Range: Seacoast, British Columbia to California. 



Specimens examined: Montesano, Heller 397(); 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 Xuttall. 



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



Specimens examined: North Yakima, Watt, August, 1895; LecJcenhy; Mount .\dams, 

 Suksdorf 72; plains of the Columbia and Lewis rivers, Nuttall; Okanogan, Cooper in 18.53; 

 Wenache, Whited 1332; Vcshnsnn, Sandherg & Leiherg 470; Rattlesnake Mountains, i>«nn, 

 September 10, 1902: Moses Coulee. Lake & Hull 717; Chelan, Elmer 8.50; without locality, 

 Vasey 480. 



Zonal distribution: Upper Sono ran. 



For illustrations of Artemisia tridentata sec Plates IV and \'I, facing pages 25 and 30. 



14. Artemisia arbuscula .\utl. Tians. Anu Phil. Soc. 7: 398. 1841. 

 Ty'pe locality: "On the arid plains of upper California, on Lewis River." 

 Range: Washington to Wyoming and California. 



Speclmens e.xa.mined: Wenache Mountains, Whited 8iil, Cotton 1795, 1790. 



Two specimens collected by Cotton in the Wenache Mountains, nos. 1.5()5 and 1798, 

 represent a plant intermediate in characters between A. arbuscula and .1. tndcidata, 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. (bay (Nutt.) Proe. Am. .\cad. 19: 49. 1884. 



SCABI.AND sagebrush. 



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



Ty'pe locality: "The plains of Lewis River." Collected by Nuttall. 



Range: Idaho, eastern W^ashington, and eastern Oregon. 



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

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

 717; Okanogan County, Cooper in 1853; Peshastin, Sandberg tfe Ledierg 470; plains of 

 Columbia and Lewis rivers, Nuttall; without locality, Vasey 480; Rock Crei^k, Cotton 966; 

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



Zonal distribution: Arid Transition. 



