Which of the following gives the correct examples for diadelphous and polyadelphous androecium respectively?

Bombax, China rose

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China rose, Pea

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Bombax, Pea

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Pea, Bombax

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Solution

The correct option is D Pea, Bombax
In pea, the filaments are united in two bundles and so it is said to have diadelphous androecium.
In bombax, the filaments are united in several groups. And, so it is said to display polyadelphous androecium.
Other classification based on the cohesion of stamens are polyandrous (in this type, the stamens are free) and monadelphous (in this type, the filaments of anther's are fused in a single group).

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