190 TREES 



Diego County, California, western Texas and northern 

 Mexico. 



The Palo Verde Acacia 



Cercidium Torreyanum, Sarg. 



The palo verde is another green-barked acacia whose 

 leaves are almost obsolete. Miniature honey-locust 

 leaves an inch long unfold, a few here and there in March 

 and April, but they are gone before they fully mature, and 

 the leaf function is carried on entirely by the vivid green 

 branches. Clustered flowers, like little yellow roses, 

 cover the branches in April, and the pointed pods ripen and 

 fall in July. 



In the Colorado desert of southern California, in the 

 valley of the lower Gila River in Arizona, on the sides of 

 low canyons and on desert sandhills into Mexico, this small 

 tree, with its multitude of leafless, ascending branches, is 

 one of the brightest features on a hopelessly dun-colored 

 landscape. 



The Jamaica Dogwood 



Icthyomethia Piscipula, A. S. Hitch. 



The Jamaica dogwood is a West Indian tree that grows 

 also in southern Florida and Mexico. It is one of the 

 commonest tropical trees on the Florida West Coast from 

 the shores of Bay Biscayne to the Southern Keys. The 

 leaves are four to nine inches long, with leaflets three to 

 four inches in length, deciduous, vivid green, making a tree 

 fifty feet high an object of tropical luxuriance. Its beauty 

 is greatly enhanced in May by the opening of the pink, pea- 

 like blossoms that hang in drooping clusters a foot or more 



