A typical anther is bilobed. The two anther lobes are separated by a deep groove in front and are attached by a band of sterile vasculature tissue called connective. Each anther is a four sided tetragonal structure consisting of four microsporangia located at corners, two in each lobe. Hence, a mature anther is tetrasporangiate. Microsporangia form pollen sacs which on maturity become filled with pollen grains.

Embryo sac: It is also called as the female gametophyte and is located in the nucellus. An ovule generally has a single embryo sac formed from a megaspore.