201 



uioimtaiii coverinj^s, so as to iiiiiiiitaiii the tax-paying' power of the com- 

 munity, which eaii not exist liere if the sj)i ings become dry. 



For the forest maps ot these counties, comprising an empire of land, 

 I am indebted, for Los Angeles, to Mr. George E. Jackson, and, for Sau 

 Diego, to Mr. T. E. Vandyke and Mr. M. G. Wheeler. 



Ci{2)rcssus macrocarpa aud Guadalupcnsis are 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 Finns Torreyana is confined to one little nook of San Diego County. 

 On the other hand, the Yucca hrevifolia, or tree cactus, seems not to be 

 known in San Diego County, aud the beautiful fragrant Bay ti ee does 

 not extend south of the Los Angeles canyons. 



In the second Sierra Madre range of Los Angeles County there are 

 about two hundred Kedwood trees, Sequoia sempervirens—n 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 inobable 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 followins; list is a modification of that in the first edition of tliis report. Tliat list was com- 

 piled mainly from Watson's Botany of California. Tbo modifications liavc been made upon the au- 

 thority of Mr. C. R. Orcutt and Dr. S. B. Parish, hoth of Sau Diego, County, Cal. Thanks are espe- 

 cially due to Dr. Parish, who is writing a fiora of this region, for the addition of several unpublished 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, havo 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 aud San Bernardino Counties as forming a true 

 botanical ro.gion. — B. E. F.] 



ACANTiiACE/E : Acantlius family. 



Behperone CaJiJ'oniica, Bentli. 

 Anacardiace.i: : Cashew famil3^ 



Jihiis divcvsUoM, Torr. & Gray. " Poisou Oak; " chmbiug. 



liluis aromatica, kit., var. triloMta, Gray. Two to 5 feet. 



Ehus infegrifolia, Bentb. & Hook. Five to 10 feet ; evergreen. 



Ehus Jaurina, Nutt. Large shrub, with evergreen foliage. 



