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 tlie 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. 



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

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

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

 them and should be mentioned. 



28. CRASSULACEAE (Okpine 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 V^ their length 2. S. obtusatum 



Petals free to the base 3. S. yoseraitense 



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

 Man., p. 233. 1909. 



Bhodiola integrifolia Raf., Atl. Jour., vol. 1, p. 146. 1832. 



Sedum frigidxim Rydb., Bull. Torr. Bot. Club, vol. 28, p. 282. 1901. 



Sedum polygamum Rydb., I.e. 



Type locality. — "On the Rocky Mountains." 



Range. — 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 Babcoek 

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

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

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



