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In china rose the flowers are...

In china rose the flowers are

A

actinomorphic, hypogynous with twisted aestivation

B

actinomorphic, epigynous with valvate aestivtion

C

zygomorphic, hypogynous with imbricate aestivation

D

zygomorphic, epigynous with twisted aestivation

Text Solution

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The correct Answer is:
A
Actinomorphic (star-shaped) can be divided into 3 or more identical sections, which are related to each other by rotation about the centre of the flower, e.g China rose. Zygomorphic flowers can be divided by only a single plane into two mirror image halves, e.g or chids.
Valvate aestivation The sepals or petals a whorl just touch one another at the margin, e.g. Calotropis.
Twisted aestivation One margin of the appendage overlaps that of the next one, e.g China rose. ln Imbricate aestivation the margins of sepals or petals overlap but not necessarily in specific direction, e.g. Cassia. For further detail refer to ans. 2
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