Give an example of valvate aestivation.

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Solution

Aestivation:
The arrangement of sepals or petals in a flower bud, before it opens, is known as aestivation.
Aestivation is also known as prefoliation.
Valvate Aestivation:

In valvate aestivation, sepals or petals just touch one another at the margin within a whorl, without overlapping.
Calotropis is an example of valvate aestivation.

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Column I (Types of aestivation)	Column II ( Examples)
A. Valvate	I. Cotton
B. Twisted	II. Calotropis
C. Imbricate	III. Bean
D. Vexillary	IV. Gulmohur

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