392 University of California Publications in Botany [VOL. 9 



Peak, Tahoe, Davy 3187; southeastern approaches to Castle Peak, 

 Heller 7068 ; dry ridges above Coldstream, Sonne, July, 1897 ; 

 Tuolumne meadows, 8,500 feet, Smiley 754 ; Mt. Goddard, 11,100 feet, 

 Hall and Chandler 681 ; Nellie Lake, Fresno County, 8,700 feet, Smiley 

 607; Hockett's meadow, Tulare County, Culbertson (B 4474) ; Alta 

 meadows, Tulare County, G. B. Grant 3563. 



The above synonymy has reference only to the Sierran representa- 

 tion of this variable species; definitive treatment of the many phases 

 exhibited by the plant in different situations must be the work of some 

 future monographer, though already it is evident that the above 

 list of synonyms might be greatly extended. 



7. Senecio pauciflorus Pursh., Fl. Am. Sept., vol. 2, p. 529. 1814. 



S. Lemberti Greene, Pitt., vol. 3, p. 89. 1896. 



Type locality. "In Laborador." 



Range. Alaska to Laborador and south to Quebec, Great Lakes, 

 Wyoming, and California. 



Zone. Canadian, perhaps to above timber line. 



Specimens examined. Trail to Castle Peak, 7,500 feet, Smiley 461 ; 

 Yosemite National Park, J. B. Lembert, July 1895; soda springs of 

 the Tuolumne, Yosemite, J. B. Lembert, August, 1894; high Sierra 

 Nevada, W. G. Harford in 1890; Lake Sabrina, Bishop Creek, Inyo 

 County, A. Davidson 2882. 



The typical form of the species has discoid heads but occasionally 

 plants show heads with more or less asymmetrical peripheral corollas, 

 i.e., radiate heads are produced and constitute the var. fallax Greenm. 

 (Contr. Nat. Herb., vol. 11, p. 597. 1906). 



8. Senecio laetiflorus Greene, Pitt., vol. 3, p. 88. 1896. 



Type locality. "Near Boca," Nevada County, California. 



Range. Pacific Coast south of Washington; east to southwest 

 Idaho and western Nevada. 



Zone. Transition and Canadian, the latter rarely. 



Specimen examined. Little Truckee River, Sierra County, 6,300 

 feet, Hall and Babcock 4526. 



I am uncertain whether this species should be admitted to this list, 

 since it is infrequent above the Transition. Following the description 

 appears the note : ' ' Common in grassy wet meadows along the eastern 

 base of the Sierra Nevada, Calif." 



