THE SPRING FLORA 



157 



Stem section 



FIG. 26. Vegetative and reproductive parts of a poplar 

 Designed to indicate the method of recording observations on trees 



1. Twig, buds 



Lenticels and scars 

 Stem section 



FIGURES 



2. Leaf characters 



3. Inflorescence, flower 



Long section of flower, pollination 



4. Fruit and seed 



Fruit class 



Seed distribution. 



