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Variation on the Outside

In the same patch we find not only evidences of heredity on the face of the flower, but on its back. The bouquet pictured here shows, on the back of the petals, yellow tendencies, greenish tendencies and even purple streaks such as neither of the parents show.

Variation on the Outside

This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 1 Chapter 5