What is hydrophily? Name any hydrophilous plant and give its important characters which help in pollination.

Explanation

It is transfer of pollen grains from anthers to the stigma through the agency of water.
Vallisneria is a hydrophilous plant. It is a dioecious plant in which male flowers and female flowers are borne on separate plants. The important characteristics for pollination are
(i) Flowers are smal, colourless, nectarless.
(ii)Calyx and coroplla and other floral parts are the unwettable. Mature male flowers abscise and float on water.
(iii) Tigmas are well exposed, long and sticky.
iv. Pollen grains and stigmas are unwettable.
After pollination female flowers are pulled inside the water.