Question

Among the following, identify the correct order of plants which exhibit hypogynous, perigynous and epigynous flowers respectively.
(I) Physalis, Sesbania, Tridax
(II) Lathyrus, Tagelus, Smilax
(III) Tephrosia, Lathyrus, Tridax
(IV) Abutilon, Lathyrus, Tagetus

• A. (I), (III)
• B. (II), (IV)
• C. (II), (III)
• D. (I), (IV)

Answer 1

Answer: (D)

(I), (IV)

Based on the position of position of ovary on thalamus with respect to other floral parts, flowers are of three types:

1. Hypogynous flowers. The ovary occupies a higher position on thalamus and other floral parts like androecium, petals and sepals are present below it. Thus, ovary is superior. For example, Physalis, Abutilon

2. Perigynous flowers: The position of ovary on thalamus is in level with other floral parts. For example, Sesbania, Lathyrus.

3. Epigynous: The ovary is present below other floral parts and is said to be inferior. For example, Tridax, Tagetus.

Hence, options I and IV have correct matches.

So, the correct answer is D