Question

Perigynous flowers are found in

• A. china rose
• B. rose
• C. guava
• D. cucumber.

Answer 1

The Correct Option is B

To determine which plants have perigynous flowers, we first need to understand what "perigynous" means in the context of flower morphology.

In perigynous flowers, the floral parts like the petals, sepals, and stamens are attached around the ovary. This arrangement forms a structure called a hypanthium, which is a cup-shaped extension of the floral axis. However, the ovary itself is superior, meaning it is positioned above the other flower parts, but there is still a cup shape formed by the hypanthium.

Let's evaluate the options provided:

1. China Rose: This plant, scientifically known as Hibiscus rosa-sinensis, has an epigynous flower structure, where the ovary is placed below the attachment of the other floral parts.
2. Rose: Roses have perigynous flowers. In roses, the floral parts are attached to a cup-shaped hypanthium, surrounding the superior ovary.
3. Guava: The flowers of guava are epigynous, with a completely inferior ovary embedded in the receptacle.
4. Cucumber: Cucumber plants have epigynous flowers as well, where the ovary is inferior and the attached floral parts are above the ovary.

Based on this information, the correct answer is the rose because it is the only plant listed with perigynous flowers.