Ideal Form and Bloom-Combination Plum
This is Mr. Burbank's famous Combination plum, a fruit so named because of the large number of divergent ancestral strains that are represented in its heritage. These plums have an almost ideal globular form, with a thick bloom evenly distributed, so that it affords protection to the fruit everywhere.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 5 Chapter 6