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Comment upon the mode of pollination in Vallisneria and Eichhornia which have emergent flowers.
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In Eichhornia the flowers emerge above the level of water and are pollinated by insects or wind.
In Vallisneria, the female flower reaches the surface of water by the long stalk and the male flowers or pollen grains are released on to the surface of water. They are carried passively by water currents and some of them eventually reach the female flowers and the stigma.
In Vallisneria, the female flower reaches the surface of water by the long stalk and the male flowers or pollen grains are released on to the surface of water. They are carried passively by water currents and some of them eventually reach the female flowers and the stigma.
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Question Text | Comment upon the mode of pollination in Vallisneria and Eichhornia which have emergent flowers. |
Topic | Sexual Reproduction in Flowering Plants |
Subject | Biology |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 68 |