BOTANY

Detailed explanation-1: -Diadelphous means the stamens in an androecioum are arranged such that the filaments are bundled in two groups. In case of pea, out of ten, nine stamens form a staminal tube while one is free.

Detailed explanation-2: -Diadelphous – When stamens are united partially and are present in two bunches, they are called diadelphous, e.g. pea. Polyadelphous – When stamens are united and are present in more than two bunches, they are called polyadelphous, e.g. citrus.

Detailed explanation-3: -Assertion :Monoadelphous stamens are found in Pea. Reason: In Pea, stamens are united into one bunch or one bundle.

Detailed explanation-4: -Pea is an example of a zygomorphic flower with diadelphous stamen and marginal placentation.

Detailed explanation-5: -Complete answer: Diadelphous stamens occur in Papilionaceae. It is majorly seen in the largest family under the order leguminates.