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Question

The descending aestivation is also called

A
Caryophyllaceous
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B
Vexillary
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C
Rosaceous
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D
Mimosaceous
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Solution

The correct option is B Vexillary
The descending aestivation is also called as Vexillary aestivation. It is a striking feature of the family Papilionaceae. There are five petals in the corolla. The bigger petal is called standard and it overlaps the lateral petals, also called the wings. These wings then overlap the smaller petal called the keel. The overlapping occurs on the descending order of the size of the petals.
Hence, the correct answer is 'Vexillary'

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