Mar., 1921] MCNAIR A STUDY OF RHUS DIVERSILOBA 
Haywards 
Mt. Diablo 
Northwest of Pasadena 
Palo Alto 
Pasadena 
Payne P. O., Tehama County 
Petrolia 
Ashland 
Bybee's Bridge 
OREGON 
Simol 
Smith Creek 
South of Palo Alto 
Stewart's Ranch 
Voltas 
Watson vi He 
Coquille 
. Los Gatos 
WASHINGTON 
Garfield County 
(The above list was communicated to me by Dr. E. W. Nelson, Acting Chief, Biological 
Survey, U. S. Department of Agriculture.) 
Distribution of Rhus diver siloha According to Sources of Herbarium Specimens 
CALIFORNIA 
Alpine, San Diego County, Mearns 4019. 
Alum Rock Springs, vicinity, Santa Clara County. 
Big Chico Creek Canyon, Butte County, altitude 250 feet, A. A. Heller, 
Black Mountain, Santa Clara County, Elmer 4785. 
Blochman's Ranch, Mariposa County, Alice Eastwood. 
Cantara, Siskiyou County, Alice Eastwood. 
Carmel, Monterey County. 
Casitas Pass, Ventura County, altitude 1000 feet. 
Chico, near, Palmer 2060, 
Clayton, Contra Costa County, Brewer 1068. 
Cow Creek Mts., Shasta County. 
Folsom, 
Forest Ranch, 1897, Mrs. R. M. Austin 1801. 
Fort Tejon, vicinity, Kern County. 
Foster Park, Ventura County, Alice Eastwood. 
Gasquet, Del Norte County, Alice Eastwood. 
Havilah, Grinnell 362. 
Healdsburg, Sonoma County. 
Kings Canyon, Lieber Mts., Los Angeles County. 
Little Chico Creek, Austin 749. 
Los Gatos foothills, 1904, A. A. Heller 7327. 
Los Tronus Creek, San Mateo County, 
Mendocino, near, H, E. Brown 750. 
Monterey, Bailey. 
Monterey, Botta in Mus. Herb., Paris. 
Mount Diablo, Alice Eastwood. 
Mutair Flat, Ventura County. 
New York Falls, Amador County, altitude 2000 feet. 
North Fork and vicinity, Griffiths 4531. 
Oroville, Table Mt., 8 miles north of, Butte County. 
Pacific Grove. 
Petrified Forest, Alice Eastwood. 
Palo Alto, foothills near, Santa Clara County. 
Pasadena, Jones 3206. 
Red Reed Canyon, Ventura County. 
