Dahlias Approaching Perfection
Some of the specimens here shown are approaching their limit of probable development in a certain direction. But note how strikingly different these flowers are from the familiar double dahlias of our gardens. To casual inspection they would scarcely seem to belong to the same genus of flowers. Yet these hybrids have at least some strains of heredity that are identical with those combined in the familiar double dahlias of our gardens.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 9 Chapter 7