How does pollination is achieved in vall...

How does pollination is achieved in vallisneria and sea grasses

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Vallisneria are submerged fresh water hydrophytes in which hydrophilly is observed. In vallisneria the female flower stalk is uncoiled to reach the water surface to receive the pollen grains carried by water currents.
In sea grasses show hydrophilly type of pollination here the female flowers are submerged in water to receive pollen grains for pollination inside water. pollen grains are long, ribbon like structures to be carried passively inside the water.

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