1921] Smiley: Flora of the Sierra Nevada of California 393 



9. Senecio subnudus DC, Prodr., vol. 6, p. 428. 1837. 



Type locality. — "In Americae bor. ora occid. ad Columbia-river." 

 Doiiglas. 



Range. — British Columbia to Montana, south to Wyoming and 

 California. 



Zone. — Hudsonian and above timber line. 



Specimens examined. — Plumas County, Mrs. Austin in 1876 ; 

 Crane Flat, Yosemite, McLean, July, 1875 ; Mt. Dana, at timber line, 

 10,300 feet, Hall and Babcock 3619 ; summit of Mt. Dana, Lemmon 

 in 1878. 



Senecio werneriaefolius Gray (Proc. Am. Acad., vol. 19, p. 54. 

 1883), a species with determined range from the eastern side of the 

 Eocky Mountains toArizona and appearing in the high mountains of 

 Colorado and Arizona, has been reported^^* from the Sierra as growing 

 in the alpine zone on Mt. Conness, north of Yosemite. Coville^° re- 

 ferred nos. 1662 and 2052 of the Death Valley collection to this species. 

 I have had no opportunity to examine these specimens but both of 

 the Death Valley numbers are referred by Dr. Greenman to his S. 

 Muirii. 



According to Dr. Greenman,^-^ Senecio Suksdorfii Greenm. (Bot. 

 Gaz., vol. 53, p. 511. 1912) is represented in our region by Heller 

 9896 from "Mt. Rose, alt. 2,940 m." This is approximately 9,800 

 feet, but the sheet of this number preserved at the Gray Herbarium 

 gives the station as "Mountains west of Carson, elevation 6,000 feet 

 and the plant does not correspond to Howell's description (Fl. N.W. 

 Am., vol. 1, p. 379. 1903, as 8. adamsii, a name to be rejected as a 

 homonym). 



22. ACHILLEA 



Involucral bracts pale, their margins scarcely darkened; pubescence of the 

 leaves soft hirsute 1. A. millefolium var. lanulosa 



Involucral bracts with conspicuous dark brown -purple margins; pubescence of 

 the leaves silky 2. A. borealis 



1. Achillea millefolmm L. var. lanulosa (Nutt.) Piper, Fl. Palouse 



Reg., p. 196. 1901. 



A. lanulosa Nutt., Jour. Acad. Phila., vol. 7, p. 36. 1834. 

 A. tomentosa Pursh, FL, vol. 2, p. 319. 1814. 



Type locality. — Banks of the Kooskoosky (Clearwater River, 

 Idaho). 



Range. — British Columbia to Saskatchewan and south to California, 

 Arizona, New Mexico, and Kansas. 



Zone. — Transition to Hudsonian. 



