What is pollination?

The transfer of pollen from a stamen to a pistil; fertilization in flowering plants. It takes place through self-pollination or cross-pollination. Please note that this answer refers specifically to the pollination of angiosperms and gymnosperms.

Self-pollination:

Please see the related link below.

Cross-pollination:

The process in which the pollen from the anther of the male flower of a plant comes into contact with the ovary of a female flower from another plant, resulting in pollination.

Some methods/agents of cross-pollination are:

  1. Humans (cultivation)
  2. Insects (known as entomophily)
  3. Wind (known as anemophily)
  4. Animals (birds, bats)

Insects were separated from animals, because of the difference in pollination method.

Cross-pollination only occurs between species of closely related plants; for example, between different varieties of apple. Cross-pollination does not occur between unrelated plant genera, such as between an apple and an orange.

For further elaboration on the methods of cross-pollination, see the related links section. Pollination is the transfer of the pollen grains from the anther to the stigma of a plant.