30? CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



2. Sisymbrium altissim.um L. Sp. Fl. 2: ()59. I75.S. TuMBUNt; mustauu. 

 Type locality: "Habitat in Italia, Gallia, Siberia." 



Specimens examined: Whatcom County, Gardner 410; Puliiiian, Pij>er 3513; Wawa- 

 wai. Piper, May 31, 1903. 



3. Sisymbrium thalianum (L.) Gay, Ann. Sci. Nat. 1. 7: 399. 1S26. 

 Arabia ihallaua L. Sp. PI. 2: 665. 1753. 



Type locality: European. 



Specimens examined: Taconia, Flett, May, 1899. 



4. Sisymbrium canescens Nutt. Gen. 2: 68. 1818. 

 Type locality: "From Virginia to Georgia." 



Range: Washington to Saskatchewan, Florida, and California. 



Specimens examined: Yakima County, Henderson 2379; Waitsl)uig, Horner 77; with- 

 out locality, Vasey in 1889. 



5. Sisymbrium sophia L. Sp. PI. 2: 659. 1753. 

 Typk locality: European. 



Specimens examined: Pullman, P/y*?/- 3511; Wawawai, Pty«7'2871; Waitsburg, //or^tr 

 599. 



6. Sisymbrium incisum Engelm. in A. Gray, PI. Fendl. 8. 1849. 

 Type locality: "Santa Fe Creek and Mora River," New Mexico. 

 Range: Washington and Manitoba to California and New Mexico. 



Specimens examined: Ellensburg, Piper, May 21, 1897; Blue Mountains, Homer 67; 

 Wenache Mountains, Cotton 1286. 



6a. Sisymbrium incisum filipes A. Gray, PI. P\'ndl. 8. 1849. 



Sisymbrium lonyipedicellatum Fourn. Sisymb. 59. 1865. 



Sophia jUipeH Heller, Bull. Torr. Club 24: 311. 1897. 



Type locality: "Clearwater," Idaho. Collected by Spalding. 



[Range: British Columbia to Nevada. 



Specimens examined: Ellensburg, Whited 438; North Yakima, Mrs. Steinwey; Flett 

 1129; Tacoma, Flett 51; Pasco, Piper 2972; Hunts Junction, Leckenhy, April, 1898; 

 Spokane, Piper, May, 1896; Pullman, Piper 1477; Elmer 842; Almota, Piper, May, 1897; 

 Wawawai, Hvll, May, 1892; Piper, May, 1893; Mount Carlton, Ereayer 145; Coupeville, 

 Gardner 20; Wenache, Whited 1062, 603: Rattlesnake Mountains, Cotton 364; Sunnyside, 

 Cotton 356; Cascade Mountains to Colville, Lyall in 1860; Rock Lake, Sandhery & Leibery 

 101; Walla Walla, Mrs. Anderson in 1884; Wawawai, Piper 1477. 



Zonal distribution: Upper Sonoran and Arid Transition. 



7. Sisymbrium hartwegianum Fourn. These Crucif. 66. 1865. 



Sisymbrium incisum hartuxyianum Wats, in Brewer & Wats. Bot. Cal. 1: 41. 1876. 



? Sisymbrium canescens brevipes Nutt.; Torr. & Gr. Fl. 1: 92. 1838. 



Type locality: "Crescit in imperio mexicano." 



Range: British Columbia and Alberta to Mexico. 



Specimens examined: Wenache, Whited 50; Charleston, Piper, June 21, 1895; Pasco, 

 Piper 2996; Ritzville, Sandhery & Leibery 161; Morgans Ferry, Snksdorf 242; Spokane 

 Valley, Lrjall in 1861; Myers Falls, Ereayer; Coulee City, Piper 3879, 3880; Republic, 

 Beattie & Chapman 2271. 



Zonal distribution: Upper Sonoran. 



The Sisymbrium hrachycarpon Richards., in Hooker's Flora, is, in all prol)abi]ity. not tiiat 

 species, but S. hartweyianum , so far as the plant horn the "Great Falls of the Coiuml)ia" 

 is concerned. 



