The ovary has a hypanthium fused to it. In general, superior fruits arise from both hypogynous and perigynous flowers, inferior fruits arise from epigynous flowers. A berry has a thin skin-like exocarp and a fleshy mesocarp and endocarp. No clear demarcation can be seen between the mesocarp and endocarp. It appears as a single layer.
Berries can be either superior or inferior.
Drupe A drupe had a thin skin-like exocarp, a fleshy mesocarp, and a stony endocarp. A solitary seed is found inside the endocarp. The botanical term nut is different from the vernacular usage. Not all things commonly called nuts are botanically nuts. It may be formed of two or more carpels.