PLANTATIONS IN CALIFORNIA. 



37 



to know that the same poor development of the eucalypts was found 

 in Hawaii, though there the blue gum (E. globulus), the red mahogany 

 (E. resinifera), and the swamp mahogany (E. robusta) make desirable 

 form development when grown in close plantations. Both in California 

 and in Hawaii many other species besides blue gum make excellent 

 growth if planted as single trees or in small patches. 



The Dwight Whiting grove at El Toro, in San Diego County, about 

 five years old, composed of a mixture of several species; the Vowko- 

 witch Brothers' grove near Hanford, in Kings County, about six years 

 old, composed mostly of red, gray, and blue gums; the San Mateo 

 grove of ironbark (E. sideroxylon) ; the Clift grove of sugar gum on 

 Point Loma, in San Diego County, all show poor development and slow 

 growth. Following are tables showing the stand in two of the oldest 

 groves of eucalyptus other than blue gum: 



CARPENTER GROVE. 

 Located near Santa del Rosa, San Bernardino County. 



Species Sugar gum (E. corynocalyx ) . Seedlings. 



Age 19 years. 



Elevation About 1,200 feet. Slope moderate, south exposure. 



Soil A coarse grained loamy sand mixed with adobe; 



mostly of decomposed granite. 



Water table Probably over 100 feet 



Area of grove 2 acres. 



Spacing 8 by 8 feet. 



Sample plot V4 acre. 100 by 109 feet 



Information in regard to the age of the grove obtained from the owner of the 

 grove, who consulted an old journal kept when the plantation was started. 



YIELD. 



DAVIS GROVE. 



Located near Lankershim, Los Angeles County. 

 Species Irregular mixture of Blue gum (E. globulus) and Red 



gum (E. rostrata). 

 Age S years. Sprouts. Planted originally in 1894, and the 



entire area cut over in 1902. 



Elevation About 800 feet. 



Soil Light sandy loam. 



Water table 15 feet. 



Area of grove 15 acres. 



Spacing 16 by 4. Trees 4 feet apart in rows, and rows 16 feet 



apart. 

 Sample plot % acre. 100 by 109 feet 



