In which floral arrangement is the ovary termed 'inferior' because the margin of the thalamus grows upward enclosing the ovary completely and fusing with its wall?
Answer and explanation
Correct answer: B. Epigynous flower
- Step 1: In an epigynous flower, the receptacle (thalamus) grows upward and completely encloses the ovary, fusing with the ovary wall.
- Step 2: The sepals, petals, and stamens arise from the top of the ovary.
- Step 3: The ovary is located below the other floral whorls and is termed inferior (e.g., guava, cucumber, and ray florets of sunflower).
Answer
Epigynous flower (e.g., guava, cucumber, and ray florets of sunflower)
Why not the others: 'Hypogynous flower...' has a superior ovary situated on the convex thalamus above all other whorls; 'Perigynous flower...' features a half-inferior ovary situated in the center of a cup-shaped or saucer-shaped thalamus; 'Apocarpous flower...' describes a gynoecium with free, unfused carpels.
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