338 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



7. Potentilla fastigiata Nutt.; Torr. & Gr. Fl. 1: 440. 1840. 

 Type locality: "Plains of the Rock}' Mountains." 

 Range: Washington to Saskatchewan, south to California. 

 Specimens examined: Klickitat County, Sxtksdorf248S. 



8. PotentiUa graciHs Dougl.; Hook. Bot. Mag. 67: ;>/. 298^. 1830. 



Type locality: "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, Flett 108; Whidby Island, Gardner 97; 

 Coupcville, 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, SuJcsdorf 325; Fort Vancouver, Tdmie; Scovler; Piper 4937; 

 Cape Horn, Piper 5017. 



Zonal distribution: Humid Transition. 



0. Potentilla blaschkeana Turcz.; Lchm. in Otto, Gart. & Blum. 9: 506. 185a 



Potentilla fabelli/ormis ctenophora Rydiiorg, Bull. Torr. Club 24: 7. 1897. 



Potentilla ctenophora Rydberg, Mon. N. A. Pot. 75. 1898. 



Type locality: In the Russian American Colonics, California. 



Range: British Columbia to California and Wyoming. 



Specimens ex.\mined: Pullman, Piper 1529, 3534, 3535, 4134, 4135; Clarks Springs, 

 Kreager 21; Wcnache, 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 locality: "Manitoba." 



Range: Washington to Colorado and Manitoba. 



Specimens exa.mined: North Yakima, Watt; Ellenshurg, Piper 2736; Klickitat 

 Meadows, F/c« 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. Ilort. Hamb. 1852: 12. 1852. 

 Potentilla recta Nutt. Gen. 1 : 310. 1818, not L. 1753. 



Potentilla ngida Nutt. Journ. Acad. Phila. 7: 20. 1834, not Wall. 



Potentilla gracilis rigida S. Wats. Proc. Am. Acad. 8: 557. 1873. 



Type locality. "On the Missouri from Fort Mandan to the Rocky Mountains." 

 Collected by Nuttall. 



Range: 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. PotentiUa villosa Pall.; Pursh. Fl. 1: 353. 1814. 



Potentilla Jragiformis mllosa Kegel & Tiling, Fl. Ajan. Nov. Mem. Soc. Mosc. 1 1 : 85. 1859. 

 Type locality: "On the northwest coast " 

 Range: Alaska to Mount Rainier, Washington. 



Specimens examined: Olympic Mountains, Flett 129; Mount Rainier, Piper 1999: 

 Smith 783. 



Zonal distribution: Arctic. 



13. PotentiUa flabeUifolia Hook.; Tor.. & Gr. Fl. 1: 442. 1838. 

 Potentilla gelida American authors, not Meyer. 



