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Question

Biology Question on Flower – A Fascinating Organ Of Angiosperms

The 3 sub-families of leguminosae are distinguished mainly on the basis of

A

nature and habit of the plants

B

nature of gynoecium

C

nature of fruit and its germination

D

inflorescence and flower characters.

Answer

inflorescence and flower characters.

Explanation

Solution

A large taxon, mostly treated as distinct order comprising 3 families : papilionaceae (Fabaceae), caesalpiniaceae and mimosaceae. Of all these families papilionaceae is predominantly herbaceous with a few shurbs and trees, but both the caesalpiniaceae and mimosaceae are chiefly arborescent. The flowers in racemose inflorescence, bisexual, actino or zygomorphic are usually highly ornamental. Stamens few to numerous, basifixed, mostly dehisce longitudinally. Ovary monocarpellary, superior, unilocular, placentation marginal.