(415 ) 
16a. Ceanothus crassifolius planus var. nov. 
Like the type in structural characters but leaves not revolute 
on the margin, and much less tomentose beneath, the venation 
being very evident through the sparse tomentum. An apparent 
geographic variation. 
Type: Red Reef Canyon, Topatopa Mountains, Ventura County, 
Abrams {§ McGregor 124, June 8, 1908. The type specimen is 
deposited in the Stanford University Herbarium. 
Distribution: Mountains of Santa Barbara and Ventura Coun- 
ties. Upper Sonoran. 
Specimens examined: Santa Ynez Mountains, Elmer 3758; near 
Sespe Hot Springs, Dudley 4777; Red Reef Canyon, Topatopa 
Mountains, Abrams &F McGregor 124. 
17. CEANoTHUS cuNEATUS (Hook.) Nutt. in Torr. & Gray, Fl. N. 
Am. 1: 267. 1838. 
Rhamnus cuneatus Hook. Fl. Bor. Am. 1: 124. 1829. 
Type locality: ‘‘Near the sources of the Multonomak River, 
in sandy soils growing under the shade of Pinus Lambertiana.” 
Distribution: Southern Oregon southward throughout Cali- 
fornia. Upper Sonoran. 
Specimens examined: Vicinity of Fort Tejon, Abrams & Me- 
Gregor 295; Cuddy’s ranch, Dudley 4485; Sisar Canyon, Topatopa 
Mountains, Abrams &F McGregor 67; near Azusa, Abrams 3128; 
Elizabeth Lake, Abrams & McGregor 410; Colton, Jones 3176; 
San Bernardino, S. B. & W. F. Parish rors; Claremont, Baker 
237; hills near Campo, Abrams 3500; San Clemente Island, Blanche 
Trask 198. 
4. ADOLPHIA. 
1. ADOLPHIA CALIFORNICA S. Wats. Proc. Am. Acad. I1: 126. 
1876. 
Type locality: “At Solidad and Chollas Valley, near San Diego 
and near Monterey.” The last station is unquestionably an error. 
Distribution: From the vicinity of San Diego southward through 
northern Lower California. Lower Sonoran. 
Specimens examined: Near San Diego, Parry, 1850; Soledad 
Palmer 44; Jones 3132; Chollas Valley, Cleveland; Tia Juana, 
Abrams 3481. 
