Question
Biology Question on morphology of flowering plants
In china rose the flowers are :
A
Zygomorphic, epigynous with twisted aestivation
B
Actinomorphic, hypogynous with twisted aestivation
C
Actinomorphic, epigynous with valvate aestivation
D
Zygomorphic, hypogynous with imbricate aestivation
Answer
Actinomorphic, hypogynous with twisted aestivation
Explanation
Solution
In China rose the flowers are actinomorphic i.e., it can be divided into two equal radial halves in any radial plane passing through the centre; they are hypogynous, i.e., the gynoecium occupies the highest position, while the other parts are situated below it; | they have twisted aestivation i.e., one margin of petal | overlaps that of the next one and so on.