Question

Vallisneria adaptive features

Answer 1

For water pollinated plants, The pollen grains should be produced in large quantities.

●The female flower reaches the surface of the water.

●Vallisneria produce a coiled peduncle (female), which straightens out so the stigma can reach above the water surface. The spathe (male) also straightens out so its petals break loose and float on the surface. Its three leaves and anthers form a sailboat. The spathe floats along until hopefully it bumps into a stigma.