Self-incompatibility
The phenomenon in which the pollen from the anther of a flower fails to germinate on the stigma and fertilise the flower of the same plant species is referred to as self incompatibility. This prevents self pollination.
Xenogamy
The type of pollination where the pollen from one flower is transferred to another flower of another plant is called xenogamy or cross pollination.
Final answer
Xenogamy is the pollination involved in self -incompatibility.