The two key parts of the pistil that develop into fruits and seeds are:
- Ovary: This swollen base of the pistil contains ovules, the precursors to seeds. After fertilization, the ovary wall thickens and ripens to become the fruit.
- Ovules: These are tiny structures within the ovary that contain egg cells. Once fertilized, ovules develop into seeds, containing an embryo, endosperm for nourishment, and a seed coat for protection.