druplet

A drupe is a type of simple fleshy fruit that typically contains a single seed. It develops from a single flower's ovary and has three layers: a thin outer skin, a thick fleshy middle layer, and a hard, stony inner layer called the pit or putamen, which encloses the seed. Examples of drupes include cherries, peaches, olives, mangoes, and walnuts.1

Some fruits, like raspberries and blackberries, are technically aggregates of many small drupes, called drupelets, clustered together. These aggregate fruits develop from a single flower with multiple ovaries. While commonly referred to as berries, these are distinct from true berries, which are typically many-seeded and fleshy throughout.1234