A Peach-Almond Hybrid
In this specimen the fibrous covering of the stone is increased in strength, as the picture suggests. It would seem as if hybridization had accentuated the almond quality, without introducing any tangible quality of the peach. There are other specimens, however, in which the fleshy covering is juicy and peach-like.
This image is from: Luther Burbank: his methods and discoveries and their practical application. Volume 11 Chapter 3