Two Almonds, One Showing the Nectarine Color
The almond and the nectarine are very readily hybridized. Indeed, they are constantly crossed by the bees whereever they blossom at the same time in the same neighborhood. Here is a specimen that reveals its hybrid origin in the form and color of its fruit.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 11 Chapter 3