a 
64 THE VEGETABLE WORLD. 
If the upper branches take a fuller development, as in the Italian 
Pine, Fig. 73, the summit of the tree expands in an umbrella 
form, and has been aptly compared to the spreading of volcanic 
scoria, expanding over the mouth of 2 crater, before it descends again 
FAGUET. DEL. 
to the earth. In all these instances the direction of the branch 1s 
decided by the manner in which the bud is inserted in the stem, 
and the direction and growth of the branch give its particular 
appearance to the tree. Branches issue from the stem at all 
