PIPER FLORA OF THE STATE OF WASHINGTON. 361 



' Columbia and Walla Walla," Nultall; without locality, Brandegee 708; without locality, 

 Vasey in 1889; Clealum, Cotlon 855; Wenache Mountains, Cotton 1317, 1314, 1316, 1462; 

 Cape Horn, Piper 520, 4970. 



Zonal distribution: Transition or Canadian. 



8. Trifolium covillei House, Bot. Gaz. 41: 337. 1906. 



Type locality: Bog lands in the Wenache Mountains, Kittitas County, Washington, 

 collected by Coviile. 



Specimen examined: Wenache Mountains, Coviile 1180. 



9. Trifolium pratense L. Sp. PI. 2: 768. 1753. Red clover. 

 Type locality: European. Abundantly cultivated and established in fields and by 



waysides. 



10. Trifoliiim repens L. Sp. PI. 2: 767. 1753. White clover. 

 Type locality: European. Established in most parts of the State. 



11. Trifolium hybridum L. Sp. PI. 2: 766. 1753. Alsike clover. 

 Type locality: European. 



Specimens examined: Pullman, Piper, July, 1893. Cultivated and established in fields 

 and by waysides nearly everywhere. 



12. Trifolium albopurpureum Torr. & Gr. Fl. 1: 313. 1838. 

 Type locality: California. 



Range: Washington to California west of the Cascades. 



Specimens examined: Whatcom, Suksdorf 257S; Port Ludlow, Binns in 1890; Seattle, 

 Smith in 1889;" Piper in 18£9. 



Zonal distribution: Humid Transition. 



This species has been considered identical with the Chilean T. macraei Hook. & Arn., 

 but it seems amply distinct. 



13. Trifolium arvense L. Sp. PI. 2: 769. 1753. Rabbit-foot clover. 

 Type locality: "Habitat in Europa, America septentrionali." 



Specimens examined: Seattle, Piper; Pullman, Piper, July 24, 1899. 



14. Trifolium ciUolatmn Benth. PI. Hartw. 304. 1848. 



Trifolium ciliatum Nutt. Journ. Acad. Phila. n. s. 1: 152. 1847, not Clarke 1813-16. 

 Type locality: "In pascuis vallis Sacramenti," California. 

 Range: Klickitat County, Washington, to California. 

 Specimens examined: Klickitat County, ;Swts<for/ 44. 



15. Trifolium gracHentum Torr. & Gr. Fl. N. Am. 1: 316. 1838. 

 Type locality: California. Collected by Douglas. 



Range: Washington to California. 



Specimens examined: Whatcom, Suksdorf l^X); Port Ludlow, 5xrms, May 25, 1890. 



Zonal distribution: Humid Transition. 



16. Trifolium hallii Howell, Fl. N. W. Am. 1: 135. 1898. 



Trifolium bifldum decipiens Greene, Fl. Fran. 1 : 24. 1891, not J. decipiensJIoriK^m. 1815. 

 Trifolium greenei House, Bot. Gaz. 41: 334. 1906. 

 Type locality: "In the Bay district," California. 

 Range: Washington to California west of the Cascades. 



Specimens examined: Alki Point, Piper in 1889; Smith in 1889; Klickitat County 

 Suksdorf 8; White Salmon, Suksdorf ^A^. 

 Zonal distribution : Humid Transition. 



