Question

explain.pollination in water is limited to about 30 genera,mostly monocotyledons.

Answer 1

Answer:

Water pollination is also termed as hydrophily and mode of pollination is water. It is quite rare in flowering plants and is limited to about 30 genera, mostly monocotyledons. ... In Vallisneria, the female flower reach the surface of water by the long stalk and pollen grains are released on to the surface of water.

Answer 2

Agents of Pollination:-

• By Insects (Entomophily)
• By wind (Anemophily)
• By water (Hydeophily)

Pollination by different agents:-

• In insect pollination, when insect visits a flower for nectar (honey), the pollen grains get deposited on the body of insect. When this insect visits another flower, some of the pollen grains stick to stigma of another flower. This leads to pollination.

• Wind pollinated flowers are small in size. No nectar (honey) or scent is produced in wind pollinated flowers. In this case, pollen grains are produced in large quantity.

• Water pollinated flowers are small and inconspicuous. Pollen grains are produced in large quantity. Male and female flowers are borne on separate plants, i.e., plants are dioecious.

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