80 PROCEEDINGS OF THE CALIFORNIA 



dense chaparral on the southern and western slopes of the Oakland hills ; ever- 

 green. 



Rubus Nutkanus Lindl. Thimble-Berry. 

 Rubus velutinus Hook, and Aru. 

 Rubus macropetalus Dougl. Blackberry. 

 Northern slopes of hills, Oakland and Marin County. 



Rosa blanda Ait. Wild Rose. 

 Very common on the banks of creeks, forming thickets. Oakland hills and 

 Walnut Creek. 



Rosa gymnocarpa Nutt. 

 Hill sides, Oakland. A small but beautiful species, rather rare. 



Photinia Arbuti folia Lindl. 

 A handsome evergreen tree of medium size, in sandy soil. Common every- 

 where in the vicinity of water and springs. 



Amelanchier Canadensis. Var. Alnifolia Torr. and Gray. Service-Berry. 

 Northern slopes, four to twelve feet high ; in clayey soil, at Mission Dolores 

 and Oakland hills. 



Ribes divaricatum Dougl. Black Gooseberry. 

 Ribes glutinosum Benth. Red Gooseberry. 

 Ribes malvaceum Smith. Black Currant. 

 Banks of creeks and northern slopes. 



IVhipplea modesta Torr. 

 In loose, light soil, in the Redwoods ; one to two feet high, rare. 



Cornus pubescens Nutt. Soft-Leaved Dogwood. 

 Large, spreading, ten to fifteen feet high. Banks of creeks, Oakland hills. 



Lonicera involucrata Banks. Twin-Berry. 

 Large, with slender upright branches, ten to fifteen feet high. Borders of 

 creeks and swamps, Bay of San Francisco, Oakland, Marin County. 



Lonicera California Torr. and Gray ; et var. hispidula. Honeysuckle. 

 Slender, climbing ; borders of streams. L. hispidula, on the out-croppings 

 of white sand-stone, Oakland hills. 



Symphoricarpus racemosus Michx. Snow-Berry. 

 Forming thickets in depressions on the Oakland hills, at 2,000 feet elevation, 

 and along streams in the valleys. Clay soil— three to four feet high. 



Sambucus glauca Nutt. Elder. 

 Sambucus pubens Michx. Red-Berried Elder. 

 Dry hill sides and borders of wet places. S. glauca, often tree-like and twenty 

 feet high. Oakland, Marin County. 



Aplopappus Laricifolius Gray. 

 A low fastigiate-branched shrub, one to three feet high ; very common in drift- 

 sand on the peninsula of San Francisco. 



