A small swollen area is formed in the amara inside the ovary of the female flower. The swollen area gradually turns into an ovule. The endosperm contains one or more archisporial cells. Each archisporial cell is large in size, the cytoplasm is dense and the nucleus is large. It produces two cells by periclinal division. wall cells on the outside and primary reproductive cells or sporogenous cells on the inside. Wall cells divide to form the wall of the zygote. The sporogenous cell develops into the female mother cell either directly or by division. Each female mother cell divides by meiosis to produce four megaspores or gametes. Of the four spermatozoa, three are destroyed and one remains viable.