338 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
7. Potentilla fastigiata Nutt.; Torr. & Gr. Fl. 1: 440. 1840. 
Type Locaity: ‘Plains of the Rocky Mountains.” 
Rance: Washington to Saskatchewan, south to California. 
SPECIMENS EXAMINED: Klickitat County, Suksdorf 2488. 
8. Potentilla gracilis Dougl.; Hook. Bot. Mag. 57: pl. 2984. 1830. 
Type Locauity: “On the banks of the Columbia and the plains of the Multnomah 
rivers.” Collected by Douglas. 
Range: Alaska to Oregon in the coast region. 
SPECIMENS EXAMINED: Olympic Mountains, lett 108; Whidby Island, Gardner 97; 
Coupeville, Gardner, July, 1898; Port Townsend, Edwards in 1896; Tacoma, Flett 900; 
Olympia, Kincaid, July, 1896; Muckleshoot Prairie, Doctor Ruhn; Manor, Piper, July 
14, 1899; Falcon Valley, Suksdorf 325; Fort Vancouver, Y'olmie; Scouler; Piper 4937; 
Cape Horn, Piper 5017. 
ZONAL DISTRIBUTION: Humid Transition. 
9. Potentilla blaschkeana Turcz.; Lehm. in Otto, Gart. & Blum. 9: 506. 1853. 
Potentilla flabelliformis ctenophora Rydberg, Bull. Torr. Club 24: 7. 1897. 
Potentilla ctenophora Rydberg, Mon. N. A. Pot. 75. 1898. 
Tyre Locauiry: In the Russian American Colonies, California. 
Rance: British Columbia to California and Wyoming. 
SPECIMENS EXAMINED: Pullman, Piper 1529, 3534, 3535, 4134, 4135; Clarks Springs, 
Kreager 21; Wenache, Whited 146, 1303; without locality, Vasey in 1889; Spokane 
County, Mrs. Tucker. 
ZONAL DistRiBuTION: Arid Transition. 
10. Potentilla viridescens Rydberg, Mon. N. A. Pot. 69, 1898. 
Type Locauity: ‘‘ Manitoba.” 
Rance: Washington to Colorado and Manitoba. 
SPECIMENS EXAMINED: North Yakima, Watt; Ellensburg, Piper 2736; Klickitat 
Meadows, Flett 1326; Rattlesnake Mountains, Cotton 423; Fresh Lake, McKay 13; without 
locality, Vasey in 1889; Wilson Creek, Lake & Hull 518, Toppenish, Cotton 781; Snipes 
Creek, Cotton 662; Blue Mountains, Piper 2445; Wenache Mountains, Cotton 1646; Satus, 
Cotton 1125. 
ZONAL DISTRIBUTION: Upper Sonoran and Arid Transition 
11. Potentilla nuttallii Lehm. Ind. Sem. Hort. Hamb. 1852: 12. 1852. 
Potentilla recta Nutt. Gen. 1: 310. 1818, not L. 1753. 
Potentilla rigida Nutt. Journ, Acad. Phila. 7: 20. 1834, not Wall. 
Potentilla gracilis rigida S. Wats. Proc. Am. Acad. 8: 557. 1873. 
Type Locauiry. “On the Missouri from Fort Mandan to the Rocky Mountains.” 
Collected by Nuttall. 
RanaeE: British Columbia and Saskatchewan to California and Colorado. 
SPECIMENS EXAMINED: North Yakima, Watt, August, 1895; Pullman, Elmer 69; Piper 
1877, without locality, Vasey 322. 
ZONAL DISTRIBUTION: Arid Transition. 
12. Potentilla villosa Pall.; Pursh, Fl. 1: 353. 1814. 
Potentilla fragiformis villosa Regel & Tiling, Fl. Ajan. Nov. Mem. Soc. Mose. 11:85. 1859. 
Type Locauity: “On the northwest coast.” 
Rance: Alaska to Mount Rainier, Washington. 
SPECIMENS EXAMINED: Olympic Mountains, Flett 129: Mount Lainier, Piper 1909: 
Smith 783. 
ZONAL DISTRIBUTION: Arctic. 
13. Potentilla flabellifolia Hook.; Tor.. & Gr. Fl. 1: 442. 1838. 
Potentilla gelida American authors, not Meyer. 
