Question

Flower of Hibiscus is:

• A. Actinomorphic and epigynous
• B. Actinomorphic and hypogynous
• C. Zygomorphic and hypogynous
• D. Zygomorphic and epigynous

Answer 1

The correct option is B Actinomorphic and hypogynous

When a flower is divided into two equal halves on cutting in any radial plane, then it is called an actinomorphic flower (radial symmetry).

When petals, sepals and stamens are situated below the ovary, the flower is called as hypogynous and in this condition the ovary will be superior. Example: Mustard, Hibiscus, brinjal.

When the flower is divided into two equal halves by cutting in one particular plane, then it is called a zygomorphic flower (bilateral symmetry).

When the margin of the thalamus grows upward and encloses the ovary completely and gets fused with it, the flower is called epigynous. The other parts of the flower rise above the ovary in an epigynous flower. Ovary will be inferior in such flowers. Examples: Guava, Cucurbita.