136 University of California Publications in Botany ["Vol. 9 



1. Allmm tribracteatum Torr., in Pac. R.R. Rep., vol. 4, p. 148. 



1857. 



Type locality. — "Hillsides, Diiffield's Ranch, Sierra Nevada." 



Range. — Central Sierra, Mono County to Plumas County; also in 

 Tulare County. 



Zcytie. — Canadian and above. 



Specimens examined. — Cisco, 9,000 feet, Bolander in 1872 ; trail to 

 Mt. Tallac above Glen Alpine, 7,200 feet. Reed and Pendleton 1650 ; 

 peak above Mono Lake, 10,000 feet. Brewer 1799 ; Mt. Surprise, Mari- 

 posa County, Congdon, Augast 11, 1890 ; Dana Fork meadows, 

 Yosemite, 9,800 feet, Smiley 855. 



The extension of the range to Tulare County is not based upon 

 specimens seen by me but is founded upon Coville's statement'''" that 

 Coville and Funston 1543 is of this species. 



2. Allium ambiguum Jones, Contr. W. Coast Bot., vol. 10, p. 18. 



1902. 



Type locality. — "Growing on alpine ridges at Summit, Calif." 



Range. — Mountains of Modoc County southward through the 

 Sierra, perhaps to southern California. 



Zone. — Canadian. 



Specimens examined. — Near Summit, Jones 6660 (type collec- 

 tion) ; shoulder of Mt. Ralston, Tahoe, 8,000 feet, Setchell and Dobie, 

 July, 1901; Cisco, Placer County, A. R. Valentin, June, 1914; sum- 

 mit between Lake Lucile and Lake of the Woods, Tahoe, M. S. Baker, 

 July 17, 1904. 



3. Allium bisceptrum Wats., Bot. King's Exped., p. 351, t. 37. 



1871. 



Type locality. — "On stream banks in the mountains, from the 

 Trinity to the East Humboldt Ranges, Nevada, and in the Wahsatch ; 

 6-7,500 feet altitude." 



Range. — Sierra Nevada to Utah. 



Zone. — Arid Transition and rising into the Canadian. 



Specimens examined. — Sierra Nevada, 9,000 feet, E. L. Greene 

 387 ; Crescent Lake, Mariposa County, Congdon, August 13, 1895. 



4. Allium campanulatum Wats., Proc. Am. Acad., vol. 14, p. 231. 



1879. 



Type locality. — "Sierra Nevada (JNIariposa to Plumas Counties: 

 n. 4943 Bolander; Mrs. M. E. P. Ames)." 



