Drupe: Single-carpelled, single-seeded

Pericarp: Fleshy mesocarp, stony endocarp

A drawing illustrating the three-dimensional structure of a drupe in peach (Prunus persica). The stony (i.e. composed of sclereids) endocarp encloses a single seed. The extensive mesocarp is fleshy and is covered by a thin skin (exocarp) comprised of epidermis and collenchyma.