WINTER AND DORMANT BUDS 



117 



Moreover, branches grow from buds: branches, therefore, 

 should show a definite arrangement; usually, however, they 

 do not show this arrangement because not all the buds grozv 

 and not all the branches live. (See Chaps. II and III.) 

 It is apparent, however, that the mode of arrangement of 

 buds determines to some extent the form of the tree: com- 

 pare bud arrangement in pine or fir with that in maple or 

 apple. 



FIG. 154. — Oak Spray. How are the leaves borne with reference to 

 the annual growths ? 



The uppermost buds on any twig, if they are well 

 matured, are usually the larger and stronger and they are 

 the most likely to grow the next spring; therefore, branches 

 tend to be arranged in tiers (particularly well marked in 

 spruces and firs). See Fig. 154 and explain it. 



Winter Buds show what has been the Effect of Sunlight. — 

 Buds are borne in the axils of the leaves, and the size of 

 vigor of the leaf determines to a large extent the size of the 

 bud. Notice that, in most instances, the largest buds are 

 nearest the tip (Fig. 157). If the largest ones are not 

 near the tip, there is some special reason for it. Can you 

 state it ? Examine the shoots on trees and bushes. 



