Identify the type of flowers based on the position of calyx, corolla and androecium with respect to the ovary from the given figures (a) and (b). (NEET 2024)
Answer: (C) Perigynous; (b) Hypogynous. Flowers are classified by the position of calyx, corolla and androecium relative to the ovary.
- A.Hypogynous; (b) Epigynous
- B.Perigynous; (b) Epigynous
- C.Perigynous; (b) Hypogynous✓
- D.Epigynous; (b) Perigynous
Correct Answer
(C) Perigynous; (b) Hypogynous
Solution & Explanation
Flowers are classified by the position of calyx, corolla and androecium relative to the ovary. In figure (a) the other parts arise on the rim of the thalamus at about the same level as the gynoecium, with a half-inferior ovary = perigynous; in figure (b) the gynoecium occupies the highest position with the other parts below it (superior ovary) = hypogynous. So (a) Perigynous; (b) Hypogynous = option C. NCERT Reference: Ch 5, p.63, lines 5-11 — "In the hypogynous flower the gynoecium occupies the highest position while the other parts are situated below it. The ovary in such flowers is said to be superior ... it is called perigynous. The ovary here is said to be half inferior, e.g., plum, rose, peach."