Pollen grains from which of the following plants have a higher probability of having a mucilaginous covering?

Water hyacinth

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Sunflower

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Sweet pea

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Hydrilla

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Solution

The correct option is D Hydrilla
Hydrilla is a water pollinated plant. So, the pollen grains of Hydrilla have a mucilaginous covering to prevent them from becoming wet and rotting.

Water hyacinth, sunflower and sweet pea are pollinated by insects. Hence, their pollen grains do not require a heavy mucilaginous coating and instead they have a yellow sticky substance called pollenkit.

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