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Question
Pollination by water occurs in
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Solution
The correct option is D Both A and B
Pollination by water occurs in Ceratophyllum and Zostera. These are aquatic plants. Pollination carried out through water is hydrophily. Pollination by water is quite rare in flowering plants and is limited to about 30 genera, mostly monocots, e.g. freshwater plants and marine water plants. Light and unwettable pollen grains are present in these plants.Zostera is a totally submerged marine angiosperm. It has long, elongated and needle-like pollen grains which are without exine. They float below the surface of water and pollination by water occurs in this plant. Ceratophyllum is a totally submerged freshwater plant. 30-45 stamens are present in male flower. When sinking in water, female flowers come in contact with the pollen grains released from the male flower to effect pollination.Lemna is also a water plant, but it undergoes pollination by the means of snail i.e., malacophily.
Pollination by water occurs in Ceratophyllum and Zostera. These are aquatic plants. Pollination carried out through water is hydrophily. Pollination by water is quite rare in flowering plants and is limited to about 30 genera, mostly monocots, e.g. freshwater plants and marine water plants. Light and unwettable pollen grains are present in these plants.
Zostera is a totally submerged marine angiosperm. It has long, elongated and needle-like pollen grains which are without exine. They float below the surface of water and pollination by water occurs in this plant.
Ceratophyllum is a totally submerged freshwater plant. 30-45 stamens are present in male flower. When sinking in water, female flowers come in contact with the pollen grains released from the male flower to effect pollination.
Lemna is also a water plant, but it undergoes pollination by the means of snail i.e., malacophily.
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