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  4. When transfer of pollen grains occurs over the surface of water, it is called

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Q. When transfer of pollen grains occurs over the surface of water, it is called

NTA AbhyasNTA Abhyas 2020Sexual Reproduction in Flowering Plants

Solution:

Entomophily is pollination by insects. Myrmecophily is pollination by ants. The pollination which takes place on the surface of water is called epihydrophily. The pollination which takes place inside the water is called hypohydrophily. In Vallisneria, the female flower reach the surface of water by the long stalk and the male flowers or pollen grains are released on to the surface of water. Thus it shows epihydrophily