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201 
mountain coverings, so as to maintain the tax-paying power of the com- 
munity, which can not exist-here if the springs become dry. 
For the forest maps of these counties, comprising an empire of land, 
I am indebted, for Los Angeles, to Mr. George Ki. Jackson, and, for San 
Diego, to Mr. T. E. Vandyke and Mr. M. G. Wheeler. 
Cupressus macrocarpa and Guadalupensis ave not found in Los Angeles 
County, to my knowledge, in a state of nature. Some of the Sumacs, as 
the one with edible berries, do not extend to us. 
The Pinus Torreyana is contined to one little nook of San Diego County. 
On the other hand, the Yucca brevifolia, or tree cactus, seems not to be 
known in San Diego County, and the beautiful fragrant Bay tree does 
not extend south of the Los Angeles canyons. 
In the second Sierra Madre range of Los Angeles County there are 
about two hundred Redwood trees, Sequoia sempervirens—a fact not 
generally known, owing, doubtless, to the inaccessible character of the 
mountains where they are. 
In this connection it is proper to call attention to the considerable 
number of trees and shrubs perpetuated in California that have long 
become extinct elsewhere. One may well think it probable that the 
mild and equable climate where this has happened may be as favorable 
to man as it has been to vegetable growth. 
The necessity of the hour is the intelligent supervision of the forests 
and brush lands of California, with a view to their preservation. The 
cutting and use of the forests should be so reasonably regulated as to 
insure their reproductive power, and above all, maintain the forest in- 
fluence on the climate and secure to the farmer the perennial character 
of the springs and streams necessary in the dry season for irrigation ; 
also to protect the low lands against floods and torrents that occur here 
whenever the mountains are denuded. 
TREES AND SHRUBS OF SAN DIEGO COUNTY, CALIFORNIA. 
[The following list is a modification of that in the first edition of this report. That list was com- 
piled mainly from Watson's Botany of California. The modifications have been made upon the au- 
thority of Mr. C. R. Orcutt and Dr. 5. B. Varish, both of San Diego, County, Cal. Thanks are espe- 
cially due to Dr. Parish, who is writing a flora of this region, for the addition of several unpublished 
species. The Cacti, and other plants not truly shrubs or trees, have been omitted. A few species, 
however, not always woody throughout, have been inserted. The fact that Mr. Kinney submitted a 
list confined to San Diego County must explain the insertion of such a limited list, while it would have, 
been desirable to embrace the flora of Los Angeles and San Lernardino Counties as forming a true 
botanical region.--L. E. F.] 
ACANTHACE: Acanthus family. 
Beloperone Californica, Benth. 
ANACARDIACE: Cashew family. 
thus diversiloba, Vorr. & Gray. ‘Poison Oak; ” climbing. 
Rhus aromatica, Ait., var. trilobata, Gray. Two to feet. 
Rhus integrifolia, Benth. & Hook. Five to 10 feet; evergreen. 
Rhus laurina, Nutt. Large shrub, with evergreen foliage. 

