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What type of pollination takes place in Vallisneria?

1. Male flowers are carried by water currents to female flowers at surface of water.
2. Pollination occurs in submerged condition by water.
3. Flowers emerge above surface of water and pollination occurs by insects.
4. Flowers emerge above water surface and pollen is carried by wind.

Correct answer: Male flowers are carried by water currents to female flowers at surface of water.

Solution

Vallisneria shows epihydrophily, a form of water pollination at the water surface. The male flowers are released and carried by water currents to the female flowers, which remain at the surface.

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