Q. Assertion : In imbricate aestivation, out of five petals, one is completely internal, one is completely external and in each of the remaining three petals, one margin is internal and the other is external.
Reason : Ascending imbricate aestivation is found in Cassia and gulmohur.

 1683  191 Morphology of Flowering Plants Report Error

Solution:

Correct answer is (b) If both assertion and reason are true but reason is not the correct explanation of assertion