PIPER—FLORA OF THE STATE OF WASHINGTON. 293 
SPECIMENS EXAMINED: Klickitat River, Flett 1142 in part; Mount Stuart, Elmer 1223 
(2); North Yakima, Steinweg; Sprague, Sandberg & Leiberg 202; Lincoln County, Hen- 
derson 2387; Medical Lake, Sandberg & Leiberg 50; Spokane County, Suksdorf 237; Crab 
Creek, Suksdorf 238; Spokane Valley, Lyall in 1861; Spokane, Piper 2950; St. John, 
Piper 2792; Mount Adams, Cotton 1533. 
ZONAL DisTRIBUTION: Arid Transition and Upper Sonoran. 
4. Arabis glabra (L.) Bernh. Syst. Verz. Erf. 195. 1800. 
Turritis glabra L. Sp. Pl. 2: 666. 1753. 
Arabis perfoliata Lam. Encye. 1: 219. 1783. 
Turritis macrocarpa Nutt.; Torr. & Gr. Fl. 1: 78. 1838. 
Type LocaLity: Europe. 
Rance: British Columbia to New England southward to California, Colorado, and New 
Jersey. Europe. Asia. 
SPECIMENS EXAMINED: Clallam County, Elmer 2694; Nisqually Valley, Allen, June 11, 
1894; Klickitat River, Flett 1140; Rock Island, Henderson; Sprague, Sandberg & Leiberg 
143; without locality, Vasey in 1889; Pullman, Piper 1472; Elmer 844; Clarks Springs, 
Kreager 110. 
ZONAL DISTRIBUTION: Transition. 
5. Arabis furcata S. Wats. Proc. Am. Acad. 17: 362. 1882. 
Type Locauity: “ Bluffs of the Columbia River near the mouth of Hood River,’ Oregon. 
Collected by Howell. 
Rance: Washington and Oregon. 
SPECIMENS EXAMINED: Atanum River, Henderson, August, 1892; Mount Adams, Suks- 
dorf ; Howell; Henderson 58; without locality, Brandegee 625. 
6. Arabis hirsuta Scop. Fl. Carn. ed. 2. 2: 30. 1772. 
Arabis rupestris Nutt.; Torr. & Gr. FI. 1: 81. 1838. 
Typ Locatity: Carniolia. 
RanGE: Alaska to Labrador, southward to New Mexico and Virginia. Asia. Europe. 
SPECIMENS EXAMINED: Fairhaven, Piper, July, 1897; Semiamoo Bay, Lyall in 1858; 
Admiralty Head, Piper, April, 1898; Silverton, Bouck 20a, Skokomish Valley, Kineacd, 
May, 1892; Tacoma, Flett, April, 1896; Nisqually Valley, Allen, June, 1894; Klickitat 
River, Flett 1138; Coppei River, Horner 80; Almota, Piper, May 11,1901; without locality, 
Geyer 565. 
ZONAL DISTRIBUTION: Transition. 
When growing in dense shade, the plants are often nearly glabrous. This form is A. 
hirsuta glabrata Torr. & Gr.a 
7. Arabis holboellii Hornem. Fl. Dan. 11: 5. pl. 1879. 1827. 
Arabis retrofracta Graham, Edinb. New Phil. Journ. 1829: 344. 1829. 
Type Locauity: “In rupibus Insulae Disco ad Jacobshavn detexit.” 
Rance: Washington and Colorado to British America. Greenland. 
SPECIMENS EXAMINED: Wenache, Whited, May 28, 1898, 39; Ellensburg, Whited 312, 379; 
Piper 2707; Lower Cascades, Suksdorf, May 30, 1886; Klickitat River, Suksdorf, May 18, 
1884; North Yakima, Henderson 2395; Sprague, Sandberg & Leiberg 139; Ritzville, Sand- 
berg & Leiberg 158; Douglas County, Spillman, 2630; Pine City, Peper 2427; Spokane, Piper 
2822, 2690; Spokane Valley, Lyall in 1861; Mount Carlton, Kreager 288; Blue Mountains, 
Horner 274 in part; Pullman, Elmer 207; without locality, Vasey in 1889. 
ZONAL DISTRIBUTION: Arid Transition. 
7a. Arabis holboellii patula (Graham) S. Wats. in Gray, Syn. FI. 11: 164. 1895. 
Turritis patula Graham, Edinb. New Phil. Journ. 1829: 350, 1829. 
Arabis columbiana Macoun, Cat. Canad. Pl. 2: 304. 1890. 
aF], 1: 80. 1838. 
