288 University of California Publications in Botany [VOL. 9 



Range. Subarctic America from Alaska to Labrador, south to New 

 England, Great Lakes, Colorado, and California. 



Zone. Canadian to above timber line. 



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

 Lake, Plumas County, 6,700 feet, Hall 9327 ; Pyramid Peak, 9,500 feet, 

 W. S. Atkinson in 1900 ; Heather Lake, Tahoe, 7,800 feet, McGregor 

 142 ; Desolation Valley, Tahoe, forming mats, 8,700 feet, Smiley 79 ; 

 Castle Peak, 8,900 feet, Smiley 485 ; Suzy Lake, Tahoe, Abrams 4860 ; 

 Mt. Dana, 12,000 feet, E. A. Ware 2617c ; same locality, H. M. Evans, 

 July, 1901; Crescent Lake, Mariposa County, Congdon, August 9, 

 1890 ; near Mineral King, Tulare County, above timber line, Coville 

 and Funston 1552; Eagle Lake, alpine zone, Tulare County, 10,500 

 feet, Hall and Babcock 9327 ; Arroyo-Kern Divide, Tulare County, 

 Dudley 2432. 



This is the common blueberry of the high mountains, often forming 

 extensive dwarf thickets in the wet meadows. The abundant collec- 

 tions now available for comparison show that the varieties distin- 

 guished in the Synoptical Flora are impossible of maintenance, ovate 

 and obovate leaves occurring upon the same plants. 



7. ARCTOSTAPHYLOS 



1. Arctostaphylos nevadensis Gray, Syn. Fl., vol. 2, pt. 1, p. 27. 



1878. 



Type locality. "Sierra Nevada, California, common at 8-10,000 

 feet." 



Range. Pacific Coast in the Cascades and Sierra Nevada from 

 Washington to the King's River region. Also in the North Coast 

 Ranges (Lake County). 



Zone. Canadian and Hudsonian. 



Specimens examined. Dormer Lake, Dudley, June, 1900; above 

 Donner Lake toward Donner Pass, Heller 7041; Pedlar, Amador 

 County, 6,500 feet, Hansen 1924; slope above Heather Lake, Tahoe, 

 8,600 feet, Smiley 280; Mt. Tallac, Tahoe, 9,000 feet, Abrams 4837; 

 Glen Alpine, Tahoe, W. W. Price, July 12, 1898; Bald Mountain, 

 Dinkey Creek, Fresno County, 9,000 feet, Hall and Chandler 414. 



Arctostaphylos patula Greene (Pitt., vol. 2, p. 171. 1891), dis- 

 tinguished from the above species by the larger leaves being very 

 obtuse or almost orbicular as contrasted with the sharply pointed 

 leaves of A. nevadensis, is primarily of the Transition zone, but not 



