212 University of California Publications in Botany [Vol.9 



The inclusion of these two species of sundews in an account of the 

 boreal flora of the Sierra rests upon the fact that they undoubtedly 

 belong to the glacial flora in spite of being now found, within our 

 limits at least, at an altitude considerably below that at which the 

 true boreal flora begins to appear. 



Darling tonia California Torr. (Smithson. Contr., vol. 6, p. 5, t. 12. 

 1854), a monotypic genus of Sarracemaceae peculiar to the Calif or- 

 nian region, just reaches our lower limits or may rarely rise above 

 them and should be mentioned. 



28. CRASSULACEAE (Orpine Family) 

 1. SEDUM 



Stems leafy to the top, the leaves mainly entire; flowers dioecious, the pistillate 

 becoming dark purple, all aggregated into a dense compound terminal 



cyme 1. S, integrifolium 



Stems with the upper leaves reduced and bract-like, the vegetative leaves 

 radical and entire; flowers yellow, sometimes tinged with red, secund upon 

 the branches of a forked and spreading cyme. 



Petals united for about Yi their length 2. S. obtusatum 



Petals free to the base 3. S. yoseraitense 



1. Sedum integrifolmm (Raf.) A. Nels., Coulter and Nelson, new 



Man., p. 233. 1909. 



BhodioJa integrifolm Raf., Atl. Jour., vol. 1, p. 146. 1832. 



Sedum frigidum Rydb., Bull. Torr. Bot. CTlub, vol. 28, p. 282. 1901. 



Sedum polygamum Rydb., I.e. 



Type locality. — "On the Rock}- Mountains." 



Ra7ige. — Alaska and Yukon to California and Colorado, extending 

 into northern New Mexico. 



Zone. — Arctic-alpine, rarely in the Hudsonian. 



Specimens examined. — Carson Spur, Alpine County, 8,500 feet, 

 Hansen 889; ridge south of Donner Pass, 7,500 feet ( ?), Heller 7139; 

 Mt. Tallac, W. C. Blasdale, July, 1897 ; Pyramid Peak, Tahoe, 9,700 

 feet, Smiley 120 ; Mono Pass, 10,800-12,000 feet. Brewer 1721 ; Bloody 

 Canon, Mono County, 8,500 feet, R. A. Ware 2640c; same locality, 

 Congdon, August 16, 1894 ; Mt. Rose, 10,000 feet, Kennedy 991 ; Lam- 

 bert 's Dome, Yosemite, 9,400 feet, R. A. Ware 2701c; Mt. Dana, 13,000 

 feet, Brewer 1739 ; saddle between Mt. Dana and Mt. Gibbs, Chesnut 

 and Drew, July 17, 1889 ; Mt. Dana, 11,800 feet, Hall and Babcock 

 3620; Mt. Whitney, Culbertson (B4523); near White Chief Mine, 

 above Mineral King, Tulare County, Coville and Funston 1529 ; Eagle 

 Lake near Mineral King, 10,500 feet, Hall and Babcock 5365; near 



