Page 4 - 2.Lesson Notes -Sexual mode of reproduction II

 The flower in these plants release their pollen grains into the water, which are
carried to the female flowers through water currents.
 Some examples are :-vallisneria, hydrilla etc.,

Pollinating Agents Characteristic of the plant
Insect pollination Insect pollinated plants are usually bright,
have flowers with large colourful petals,
sweet scent and nectar. The pollens are
sticky surface.
Wind pollination Wind pollinated flowers are usually dull.
They lack attractiveness, nectar and
odour. The pollens are very light and
smooth. The stigma hangs out of the
flower and is usually feathery in order to
catch the pollen
Water pollination Pollen grains are covered by waxy layer
and the stigma is sticky.