1921] Smiley: Flora of the Sierra Nevada of California 381 



18. CHAENACTIS 



Leaves large, deltoid in outline, 3-4 inches broad; scapes several headed; plant 



8 inches-2 feet high 1. C. Douglasii 



Leaves very small; scapes monocephalous ; plant 2-4 inches high. 2. C. nevadensis 



1. Chaenactis Douglasii (Hook.) Hook, and Arn., Bot. Beech., 



p. 354. 1840. 



Hymenopappus Douglasii Hook., Fl. Bor. Am., vol. 1, p. 316. 1833. 

 Macrocarpus Douglasii Nutt., Trans. Am. Phil. Soc. II, vol. 7, p. 376. 1841. 

 C. rubricaulis Eydb., N. Am. Fl., vol. 34, p. 72. 1914. 



Type locality. — "On the barren dry sandy grounds of the Colum- 

 bia, from the 'Great Falls' to the Rocky Mountains." 



Range. — Washington east to Montana and south to California and 

 New Mexico. 



Zone. — Transition, rising into the Canadian. 



Specimens examined. — Glen Alpine, Tahoe, McGregor 26 ; Fallen 

 Leaf near shore of lake. Miss Lathrop, July 12, 1909; Silver Lake, 

 Amador County, 8,000 feet, Hansen 271 ; Deer Park, Placer County, 

 1,970 m.. Miss H. A. Walker 2170* ; east side of Ralston Peak, Tahoe, 

 7,900 feet. Heller 12534; Tuolumne meadows, Yosemite, 8,750 feet, 

 R. A. Ware 2650c ; region of Dinkey Creek, Fresno County, 7,000 feet, 

 Hall and Chandler 4201 ; trail to Mt. Wliitney, Tulare County, 10,600 

 feet, Culbertson (B4418); Olancha Mountain, Tulare County, 9,000 

 feet, Hall and Babcock 5266. 



2. Chaenactis nevadensis (Kellogg) Gray, Bot. Calif., vol. 1, p. 



391. 1876. 

 Hymenopappus Nevadensis Kellogg, Proc. Calif. Acad. I, vol. 5, p. 46. 



1873. 

 C. Douglasii var. alpina Gray, Syn. FL, vol. 1, pt. 2, p. 341. 1884. 

 C. Douglasii var. montana Jones, Proc. Calif. Acad. II, vol. 5, p. 700. 1895. 

 C. pumila Greene, Leaflets, vol. 2, p. 223. 1912. 



Type locality. — Not given. 



Range. — Washington to California and east on the ranges of the 

 Great Basin to western Colorado. 



Zone. — Arctic-alpine, coming down infrequently into the Hucl- 

 sonian. 



Specimens examined. — Mountains above Coldstream, 8,000 feet, 

 Sonne, August, 1887 ; Summit, Kellogg in 1870; Tinker's Knob, Placer 

 County, 8,500 feet, Sonne, August, 1887; high ridge above Donner 



* This collection presents a plant with scapes and leaf petioles tinged with red, 

 as is oft«n the case mth high mountain plants. It is made the basis for C. rubri- 

 caulis. 



