Xenogamy (Greek xenos=strange, gamos=marriage) is the transfer of pollen grains from the anther to the stigma of a different plant. This is the only type of pollination which during pollination brings genetically different types of pollen grains to the stigma. The term xenogamy (along with geitonogamy and autogamy) was first suggested by Kerner in...
cross-fertilization
• (n.) Cross fertilization.
Xe·nog'a·my noun [ Greek 
xenogamy Fertilization by pollen from another plant of the same species; cross-fertilization.xenogamy, xenogamous In botany, fertilization by pollen from another plant of the same species; cross-fertilization.
Pollination and subsequent fertilization between flowers of two plants (i.e. not within the same plant); see cross-pollination. Cross-fertilization Term for the transfer of pollen grains from one flower to the stigma of a second flower on another plant (cross-pollination), which causes cross-pollination (xenogamy). In the case of a vine, this ...