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not to transplant them until they're at least five years old, and to cover their bases with 

 straw litter during the winter. They're propagated from seeds sown in pots and on 

 compost in the spring. They also can be propagated by layering, but they take root with 

 difficulty and never are as good as plants grown from seeds. 



KEY TO PLATES. 

 Cultivated pistachio tree. 1 . Cluster of fruit. 



Turpentine tree. 1. Branch of male flowers. 2, Detached male flower, 3. Branch 

 of female flowers. 



Mastic tree. 1 . Spike of male flowers. 2. Detached male flower, enlarged. 



