Growth of Buds and Branches 



17 



the resting bud unfolded, and the summer's growth commenced 

 at b. The oak has two periods of growth during the season, 

 so that in estimating the age of a branch a year's growth will 

 include the distance between three bud-scars. Notice the 



Fig. 41. — Twig showing leaf scars and buds of poplar. 



terminal bud of a vigorously growing branch. Determine what 

 part of the leaf protects the tip of the stem. 



The terminal bud of a fig is covered by one pair of large 

 stipules that are formed at the base of each leaf. They fall off 



