Pollination in flowering plants is defined as the transfer of pollen grains from :
Anther to stigma
The anther, part of the male stamen, is where pollen grains containing male gametes are produced and released. Definitions naming the ovary as either the origin or destination do not describe pollination, since the ovary is where fertilization occurs afterward, not where pollen lands.
Pollination specifically refers to the transfer of these pollen grains from the anther to the stigma, the receptive surface of the female pistil, after which the pollen tube grows down to reach the ovary for fertilization.
Therefore, pollination is defined as the transfer of pollen grains from anther to stigma.
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