Among
flowers of Calotropis, Tulip, Sesbania, Asparagus, Tobacco
and Groundnut, how many plants have valvate aestivation?
A
Four
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B
Eight
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C
Five
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D
Six
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Solution
The correct option is A Four Calotropis, Tulip, Asparagus and Tobacco show the valvate aestivation, that is the petals or sepals do not overlap each other in the whorl. Sesbania and Groundnut show the vexillary aestivation. There are 5 petals, the largest overlap the lateral petals, which in turn overlap the innermost petals.