Explain the structure of a drupe fruit with examples.

(N/A) Drupes are fruits that develop from monocarpellary superior ovaries and are one-seeded.
In these fruits, the pericarp is well-differentiated into three layers:
$1$. Epicarp: The thin, outermost skin.
$2$. Mesocarp: The middle, fleshy, or fibrous part.
$3$. Endocarp: The hard, stony, innermost layer that encloses the seed.
Examples: Mango $(Mangifera \, indica)$ and Coconut $(Cocos \, nucifera)$.
In mango, the epicarp is thin, the mesocarp is fleshy and edible, and the endocarp is stony hard.
In coconut, which is also a drupe, the mesocarp is fibrous.