Giant and Dwarf Cactus Seedlings
These cactus seedlings show amazing variation. Though grown from the same lot of seeds, some of them are mere pigmies, while others rise to proportions that, by contrast, are colossal. The child is father to the man; and the big children of this lot of seedlings will make big mature plants, while the little ones will always be dwarfs.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 8 Chapter 6