The transfer of pollen gains from the anther of a stamen to the stigma of a pistil or carpel is called pollination. The pollination is of two types:

•Self-pollination: when the pollen gains from the anther of a flower are transferred to the stigma of the same flower or another flower of same plant.

•Cross-pollination: when the pollen gains from the anther of a flower are transferred to the stigma of a flower of the other but similar plant.

Agents of pollination:

•Air

•Water

•Insects

•Bees and moths

•Butterflies and bats