PIPER—FLORA OF THE STATE OF WASHINGTON. 339 
Typé Locauity: “Summit of Mount Rainier, Oregon, Douglas.’ The specimen was 
probably collected by Tolmie, as Douglas was never on Mount Rainier. 
Rance: Alaska to Oregon in the mountains. 
SPECIMENS EXAMINED: Clallam County, Elmer 2521; Cascade Mountains, latitude 49°, 
Lyall in 1859; Mount Rainier, Piper 1996; Allen; Smith 396; Mount Adams, /enderson, 
August, 1892; Suksdorf; Flett 1331; Stevens Pass, Sandberg & Leiberg, 717; Horseshoe 
Basin, Lake & Hull 520; Bridge Creek, Elmer 648; without locality, Brandegee 744. 
ZONAL DISTRIBUTION: Arctic. 
14. Potentilla cascadensis Rydberg, Mon. N. A. Pot. 109. 1898. 
Type Locatiry: Chiquash Mountains, Washington. Collected by Suksdorf. 
Rance: Washington and Oregon in the Cascade Mountains. 
SPECIMENS EXAMINED: Near Mount Adams, Flett; Chiquash Mountains, Suksdorf 2165; 
Olympic Mountains, E/mer 2523. 
15. Potentilla drummondii Lehm. Nov. Stirp. Pug. 2: 9. 1830. 
Type tocauity: “Rocky Mountains north of the Smoking River, in lat. 56°, scarce. 
Drummond ”’—according to Hooker.¢ Lehmann does not note the locality of his specimens 
which however, were received from Hooker. 
Rance: British Columbia and Alberta to California. 
SPECIMENS EXAMINED: Mount Adams, Suksdor¥ 539. 
16. Potentilla newberryi arenicola Rydberg, Mon. N. A. Pot. 112. 1898. 
Tyre LocaLity: Wallula, Wash. Collected by Howell. 
Rance: Eastern Washington and eastern Oregon. 
SPECIMENS EXAMINED: Wallula, Howell. 
HORKELIA. 
Filaments dilated; flowers white. 
Leaflets deeply dentate...........---------- ene eee ecees 1. HT. fusea. 
Leaflets lobed nearly to the midrib.........-.----------+---- Ib. H. fusca tenella. 
Filaments filiform; flowers yellow. 
Cymes rather loose; receptacle cup shallow.....-..---------- 2. H. utahensis. 
Cymes subcapitate; receptacle cup deep... ..--------------- 3. H. gordon: alpicola. 
1. Horkelia fusca Lindl. Bot. Reg. 23: pl. 1997. 1837. 
Potentilla douglasii Greene, Pittonia 1: 103. 1887. 
Type tocauity: “In California.” Collected by Douglas. 
Rance: Washington to California. 
SPECIMENS EXAMINED: Mount Adams, //enderson in 1892; without locality, Vasey in 
1889, August 7, 1882. 
1b. Horkelia fusca tenella S. Wats. in Brewer & Wats. Bot. Cal. 1: 181. 1876. 
Horkelia tenella Rydberg, Bull. Torr. Club 25: 55. 1898, 
Type Loca.ity: Sierra County, California. 
Rance: California to Washington. 
SPECIMENS EXAMINED: Klickitat River, /leff 1334, 
2. Horkelia utahensis (S. Wats.) Rydberg, Mon. N. A. Pot. 150. 1898. 
Ivesia utahensis S. Wats. Proc. Am. Acad, 17: 371. 1882. 
Type LOcALITY: ‘Summit of Bald Mountain in the Wasatch range, above Alta, at over 
12000 feet altitude,’”? Utah. 
Rance: Washington to California and Utah. 
SPECIMENS EXAMINED: Cascade Mountains, Brandegee in 1883; Mount Stuart, Elmer; 
without locality, Vasey in 1889. 
ZONAL DISTRIBUTION: Arctic. 
a], Bor. Am. 1: 190. 1838. 
