Oblong in outline, four to five feet high; very gregarious, forming extensive dense chaparral on the southern and western slopes of the Oakland bills; evergreen. _Rubus Nutkanus_ Lindl. THIMBLE-BERRY. _Rubus velutinus_ Hook. and Arn. _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 Arbutifolia_ Lindl. A handsome evergreen tree of medium size, in sandy soil. Common everywhere 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. _Whipplea 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 Californica_ 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. _Linosyris ——?_ A beautiful little shrub, three to five feet high, with upright branches and long linear leaves, densely set. Branchlets and leaves covered by a resinous exudation. In glades on the northern slopes of Tamal Pais, 1,500 to 2,000 feet elevation. _Grindelia ——?_ A low shrub, two to six feet high, bordering the channels in the salt marshes at Oakland and San Rafael. _Baccharis consanguinea_ D. C.