294 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Type Locauity: “The seeds of this species were gathered in Captain Franklin’s expedi- 
tion at Hudson Bay, in Canada and in the Rocky Mountains.” 
RanGE: British Columbia and Washington to Hudson Bay. 
SPECIMENS EXAMINED: Green River Hot Springs, Piper 544. 
8. Arabis atrorubens Greene, Erythea 1: 223. 1893. 
Arabis atriflora Suksdorf, Deutsch. Bot. Monatss. 16: 211. 1899. 
Tyre Loca.ity: Klickitat County, Washington. Collected by Suksdorf. 
RanGE: Eastern Washington. 
SPECIMENS EXAMINED: West Klickitat County, Suksdorf 2105; Wenache, Whited 67, 
1531; Simcoe Mountains, Howell, June, 1879; Darling Mountains, Flett 1137; Klickitat 
Hills, Gorman, April, 1895; Wenache Mountains, Cotton 1290. 
9. Arabis perennans 5S. Wats. Proc. Am. Acad. 22: 467. 1887. 
TypPE LocaLity: From northern Nevada and Utah to Arizona and the San Bernardino 
Mountains in California.” 
Rance: Washington to California and Arizona. 
SPECIMENS EXAMINED: Without locality, Vasey in 1889. 
10. Arabis sparsiflora Nutt.; Torr. & Gr. Fl. 1: 81. 1838. 
Arabis arcuata subvillosa S. Wats. in Gray, Syn. Fl. 1': 164. 1895. 
Type Locauity; ‘Forests of the Rocky Mountains, towards the sources of the Oregon.” 
Rance: Washington and Idaho to California and Nevada. 
SPECIMENS EXAMINED: Ellensburg, Piper, May 21, 1897; Clealum, Whited 367; Mount 
Cleman, [Henderson 2395; banks of the Columbia, Douglas in 1829; Colville, Lyall in 1861; 
Rock Creek, Sandberg & Leiberg 97; Spokane, Piper 2821; Pullman, Hull 471; Piper 
1471, 1812, 1811; Elmer 88; without locality, Vasey in 1889. 
ZONAL DISTRIBUTION: Arid Transition. 
There is considerable doubt as to the identity of Nuttall’s species and it may not be our 
plant. The latter is unquestionably the subspecies subvillosa of Watson. 
10a. Arabis sparsiflora secunda (Ilowell). 
Arabis secunda Howell, Erythea 3: 33. 1895 (February). 
Arabis arcuata secunda Robinson in Gray, Syn. Fl. 11: 164. 1895 (October). 
Type LocaLiry: Mount Adams, Washington. Collected by Howell. 
Rance: Eastern Washington. 
SPECIMENS EXAMINED: Mount Adams, Howell 1487; west Klickitat County, Suksdorf 
240, 241; Larm River, Suksdorf 97; Upper Yakima River, Lyall in 1860; Wenache, 
Whited 1031. 
11. Arabis bolanderi S. Wats. Proc. Am. Acad. 22: 467. 1887. 
Typ Loca.ity: ‘‘ Yosemite Valley or Mono Pass,’’ California. 
Rance: Washington to California. 
SPECIMENS EXAMINED: Without locality, Brandegee 632. 
12. Arabis puberula Nutt.; Torr. & Gr. Fl. 1: 82. 1838. 
Arabis canescens Nutt.; Torr. & Gr. Fl. 1: 83. 1838. 
Arabis tenuis Greene, Pittonia 4: 189. 1901. 
Type Locaity. ‘Forests of the Blue Mountains of Oregon.” Collected by Nuttall. 
Rance: Washington, Oregon, and Idaho. 
SPECIMENS EXAMINED: Mount Cleman, Henderson 2389; White Salmon, Suksdorf, 
July, 1881; Ellensburg, Whited 2707; Piper, July 9, 1897; Tampico, Flett 1125; Wenache, 
Whited, April, 1900; Blue Mountains, Horner 274; Coulee City, Piper 3848; west Klickitat 
County, Suksdorf 15. 
ZONAL DISTRIBUTION: Upper Sonoran and Arid Transition. 
