Abstract: The Post fertilization changes in Mimosa pudica Linn. was studied. It is observed that ovules are anatropous, bitegmic and crassinucellate. Embryosac is polygonum type. Endosperm is abinitio nuclear. Endosperm shows haustoria. Endosperm is mostly used by developing embryo.The first division of the zygote is transverse.The inner integument is completely crushed during maturation of the seed.Outer integument is two layered thick,it is of multiplicative type of integument.

Keywords: Embryo, Seed, Mimosa.

| DOI: 10.17148/IARJSET.2021.8202