Question

Perigynous flowers are found in which plant?
A) China rose
B) Rose
C) Guava
D) Cucumber

Answer 1

The word perigynous comes from the word peri (around)+ gynous (relating to female/female organs).

Complete answer:
Perigynous flowers are those types of flowers where the hypanthium (a floral tube formed from the fusion of the stamens, petals, and sepals) is attached to the receptacle below the gynoecium and surrounds the ovary; the ovary is superior, and the free parts of the petals, sepals, and stamens are attached to the rim of the hypanthium.

1. In China rose, the flower is hypogynous that is in the flower, the perianth and stamens are attached to the receptacle below the gynoecium; the ovary is superior to these organs, and the remaining floral organs arise from below the point of origin of the carpel.
2. In rose the flower is perigynous, which means the hypanthium is attached to the receptacle below the gynoecium and surrounds the ovary; the ovary is superior, and the free parts of the petals, sepals, and stamens are attached to the rim of the hypanthium.
3. In guava the flowers are epigynous, where the hypanthium is fused to the gynoecium, and the free parts of the sepals, petals, and stamens appear to be attached to the top of the gynoecium, like in apple. The ovary is inferior, and the petals, sepals, and stamens appear to arise from the top of the ovary.
4. In cucumber, the position of the flower is epigynous as well.

Thus, the correct answer is option B (Rose).

Note: The gynoecium is the innermost whorl of a flower; it consists of (one or more) pistils and is typically surrounded by the pollen-producing reproductive organs, the stamens, collectively called the androecium. Flowers lacking a gynoecium are called staminate.