52 STREET AND HIGHWAY PLANTING. 



style of growth is very irregular ; flowers yellow, showy. It is of some 

 interest because it is a native, but is more desirable as a shrub than 

 as a tree. 



THE PINES. 



The pines are often found on the streets, but the popular practice 

 now is to use them only for roadside plantings. Here they are often 

 useful. 



Pinus canariensis, the blue pine, is a tree attaining a considerable 

 size, is of rapid growth and stands some drought. It is characterized 

 by long drooping needles of a glaucous color. Stump sprouts. 



The tree has slender branches and forms, at maturity, a broad 

 round-topped head, though in its youth it has the pyramidal form 

 characteristic of conifers. 



Pinus halepensis, the Jerusalem or Aleppo pine, is a form with short 

 needles of a somewhat grayish color, of slender habit, with an open 

 head, the younger branches often assuming a peculiar twisted appear- 

 ance. So far as could be discovered, there were no very old specimens 

 to show mature form. 



This is a species of no striking beauty, but lays claim to usefulness 

 from its great indifference to drought and considerable amounts of 

 alkali. For this reason it has a usefulness which will discount what- 

 ever it may lack in esthetic value, although it is not a poor looking 

 specimen. 



Pinus pinea, is a tree with shining green needles, which are quite 

 long, and slender branchlets. At maturity it forms a broad flat-topped 

 crown with horizontal branches characteristic of many pines. This 

 form has considerable pictorial value, as the even umbrella-like shape 

 is quite distinctive. It is commonly called the "stone pine." It is 

 not hardy in regions where there are heavy frosts, but excellent speci- 

 mens are to be seen in Capitol Park in Sacramento. 



Pinus radiata, the Monterey pine, is gradually being discarded in 

 most parts of the south, on account of the fact that it is subject to an 

 obscure disease, presumably fungoid in its nature, which attacks the 

 tree when it has attained considerable size with disastrous results. 

 So far no remedy has been noted. 



Other than this the tree has much to recommend it. It is of rapid 

 growth, attractive color (though some people consider it rather dark), 

 and fairly long duration. 



Pinus strobus, the white pine of the east, is found occasionally in 

 private yards. While a handsome tree with considerable individuality, 

 it is not a tree which can be recommended, since there is no data con- 

 cerning it on hand. 



