CONTINUED EMBRYOLOGY 15 



modifications, which may make the plan more obvious in some 

 cases than in others. Examination of ordinary herbs, shrubs and 

 trees from the point of view suggested here should be practised upon 

 the varied vegetation seen on any country walk. Such observations 

 will show the constancy of the scheme of organisation of the Higher 

 Plants, even in complicated cases. They will also illustrate in what 

 various ways the number, form and proportion of the parts may differ. 

 Thus there comes about that great diversity in appearance shown by 

 the plants that make up ordinary vegetation, though underlying the 

 construction of them all there is still a consistent plan. The salient 

 feature of this plan of construction of the Higher Plants is the capacity 

 for an indefinite vegetative increase in size and complexity of the 

 individual, which is based upon their " Continued Embryology" This 

 is centred in the Growing Point. 



