Location of ovules inside a Helleborus foetidus flower

Cross section of an ovule of a pine tree. A=Gametophyte, B=Egg cell, C=Micropyle, D=Integument, E=Sporangium

Ovules produce the female reproductive cells which get fertilized during sexual reproduction in seed plants. The word literally means "small egg."

The megagametophyte (also called the embryo sac in flowering plants) is inside the ovule. The megagametophyte produces the egg cell. view more...