pome fruits
Fruits where the flesh covers an inedible central part, the core, comprising a certain number of seeds called pips.
Japanese plum 
Has thin skin, sometimes covered in fine hairs, that envelops juicy, somewhat sour flesh; whether raw or cooked, it tastes somewhat like cherries or plums.
quince 
Fruit of the quince tree, native to warm climates; inedible raw, it is traditionally made into jams and jellies.