Seed: In the sexual reproduction of Spermatophyta (seed plants), the discrete body from which a new plant develops. Formed from a fertilized ovule, the seed comprises an outer coat (testa) that encloses a food store and an embryo plant. The food may be stored in the cotlydedons of the embryo itself or around the embryo on the endosperm.
(Example: Piper, Arabidopsis thaliana)
1. Seed with endosperm
2. Food storage of the seed is in the endosperm
2.Food storage is in the cotyledon
3. Seed of dicots