40 



TREES IN" WINTER 



attached, a fruit-scar is left, and these fruit scars furnish evidence 

 of the amount of fruit produced in previous years. 



Each bud contains the rudiments of next year's growth with 

 shortened internodes and minute leaves folded together like a fan 

 and packed away within the protective covering of the bud-scales. 

 Buds begin to form by May or June, but remain during winter in a 

 condensed condition. Growth in the spring consists, foi the most 

 part, of a rapid elongation of the internodes and an enlargement 

 of the parts which are ^already formed in the bud, and may be com- 

 pleted in a few days. For most trees, the number of leaves and 



Fig. 21. Diagram of three-year-old tree after Mueller, to show, on 

 side B, the number of branches theoretically possible if all the buds 

 develop and, on side A, the number actually produced. 1 and 2 mark 

 the end of the first and second year's g-rowth respectively. The branches 

 have developed from axillary buds such as are seen on the last year's 

 g'rowth above 2. 



