210 



FOEEST TREES OF THE PACIFIC SLOPE. 



OCCURRENCE. 



Sea coast dunes and low hill slopes and on streams in moist, pure or humous sand 

 and in dryish, poor, gravelly soil. Occurs in clumps and dense patches of pure growth 

 in open and in shade of swamp pine and live oak. 



Climatic Conditions. — Similar to those of swamp pine. 



Tolerance. — Very tolerant of shade. 



Reproduction. — Abundant seeder ; young plants frequent both in shade and open 

 moist ground. 



Fig. 83. — Myrint californica, young shoot. 



Family SALICACE^. 



A large group of trees (and shrubs) comprising the well-known willows and 

 poplars or aspens. The bark is characteristically bitter — especially so in the 

 willows. The leaves, shed in early autumn, are borne alternately on the 

 branches (never in pairs on opposite sides of the branch). Male and female 

 flowers are each produced on different trees; seed is therefore borne only by 



