nectarines
Nectarine fruits (Prunus persica).
Drupe
plant anatomy
Also known as: stone fruit
Drupe, in botany, simple fleshy fruit that usually contains a single seed, such as the cherry, peach, and olive. As a simple fruit, a drupe is derived from a single ovary of an individual flower. The outer layer of the ovary wall is a thin skin or peel, the middle layer is thick and usually fleshy (though sometimes tough, as in the almond, or fibrous, as in the coconut), and the inner layer, known as...