Question

The male flowers of Vallisneria float on the surface of water with the help of.

• A. Boat- like structure formed by two perianth lobes
• B. Boat- like structure formed by three perianth lobes
• C. Boat formed by monotepalous perianth
• D. Two tepals forming boat - shaped float while the third smaller one functions as a rudder

Answer 1

The correct option is D Two tepals forming boat - shaped float while the third smaller one functions as a rudder

Vallisneria is a submerged hydrophyte and it is a dioecious plant with the flowers borne under the water. The male flowers detach on the maturity and float on the surface of the water whereas the female flowers grow under the water. They come up to the surface with the help of their thin long stalk.

The male flowers of Vallisneria are floating on the surface of the water, with the help of two tepals forming boat-shaped float while the third smaller one functions as a rudder.

So, the correct answer is D.