Question

Vallisneria spiralis is a classical example of ______.

Options

• epi-hydrophily

• hypo-hydrophily

• anemophily

• cheiropteriphily

Answer 1

Vallisneria spiralis is a classical example of epi-hydrophily.

Explanation:

Vallisneria spiralis is a classical example of epi-hydrophily, where pollination occurs at the surface of water. Male flowers break away and float on the water surface, while female flowers are raised to the surface by a spiral stalk, allowing pollen transfer on the water surface before the female flower withdraws underwater for fruit development.