130 



THE EVOLUTION OF LIVING BEINGS. 



organs at the lower lip, while the one which appeared 

 in F2 was Ught pink, and showed beautiful petaloid 

 sepals of the same color but in a lighter shade. 



The second photograph shows one flower of a plant 

 of the 2d generation, indicated by Fg, which was flesh- 

 colored and resembled the flower of a Rhinanthus.the 

 other flowers, all belonging to the 4th generation (F4), 

 were magenta and showed shapes very different indeed 

 also, from the parent-species crossed. 



