Interspecific Hybrid Fruit Trees are crosses from different fruit tree species to make a unique new fruit. Examples are crosses between Plums and Cherries to make a Pluerry ™. Other examples include crosses between a Plum and an Apricot called a Pluot ™. They even have Interspecific Hybrids between a peach, apricot, and plum called a Peacotum ™.