Seed and fruit. Seed and fruit, respectively, the characteristic reproductive body of both angiosperms (flowering plants) and gymnosperms (conifers, cycads, and ginkgos) and, in angiosperms, the ovary that encloses it.
Flowering plants are defined as angiosperm. Water melon belong to family of Cucurbitaceae-which is like vine flowering plant. Its edible part is berry.
