ACADEMY OF NATURAL SCIENCES. 81 



Lin 



osyns 



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 P. C. 

 B. pihdaris D. C. et B. glomeridijlora Hooker, seem to be identical. It 

 is an exceedingly varying shrub; on sandy soil, low, creeping, with numerous 

 fastigiate branchlets, the flowers mostly pistillate, and the heads less crowded ; 

 on clayey soil, especially on the banks of creeks, it is often fifteen feet high, 

 quite tree-like, oblong in outline, the flowers mostly staminate, and the heads 

 very much crowded. All forms are subject to excrescences, but especially those 

 growing in a sandy soil. Evergreen. 



Bahia Artemisiccfolia Less. 

 Ovate in outline, two to three feet high, evergreen ; common on northern 

 slopes, shores of the bay, and Oakland hills. 



Artemisia jilifolia Torr. Wormwood. 

 Large root-stocks with numerous slender branches, three to four feet high. 

 Occupying almost invariably the southern slopes in common with Piplacus glu- 

 tinosus. Both plants, on account of the leaden color of their leaves and 

 branches, give the southern slopes that barren appearance, contrasting so 

 strongly with the vegetation of the northern slopes. 



Artemisia pachystachya P. C. 

 Sandy soil, three to four feet high. Peninsula of San Francisco. 



Vaccinium ovatum Pursh. Evergreen Huckleberry. 

 A beautiful shrub, five to ten feet high, with slender upright branches ; ber- 

 ries delicious. In light sandy soil, on the eastern slopes of Oakland hills. 



Arbutus Mcnzicsii Pursh. Madroiia. 

 Evergreen, twenty to thirty feet high, on the northern and eastern slopes of 

 the Oakland hills, but more common and generally larger and finer on the hill 

 sides near San Rafael. 



Arctostaphylos tomentosa Pougl. Mansanita. 

 Low, straggling, evergreen, and gregarious on the out-croppings of white sand- 

 stone in the Oakland hills. 



Arctostaphylos pungens H. B. K. Mansanita. 

 Obovate in outline, ten to fifteen feet high ; scattered. 



Gaultheria Shallon Pursh. Maris. Sallal. 

 Low, creeping, evergreeu, covering large tracts of land among the hills of 

 Marin County. Berries eatable. 



Pkoc. Cal. Acad., vol. hi. ^ Dec. 1863. 



