Transfer of pollen grains from anther to stigma of another flower of same plant is known as:

Step-by-step solution

Geitonogamy is the transfer of pollen grains from anther to the stigma of another flower of the same plant. Cleistogamy is a condition in which flower does not open. Xenogamy is the transfer of pollen grains from anther to the stigma of another flower of different plant of the same species.