CONTENTS 





CHAPTER 



(VI) 



VII. 

 VIII. 



Delayed germination 932 



External factors ......... 933 



Seedlings ........... 934 



Buds . ' * . 936 



Plant associations ..." 939 



Adaptation . , . . . 947 



Adaptive response ......... 947 



Fortuitous variation . . . . . . . . . 950 



Congenital and reaction structures . . . . . . 951 



Survival through natural selection 952 



