Family leguminosae is classified into three sub families on the basis of which characters? Calyx and corolla Symmetry of flower Corolla and androecium Stamens and carpels

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Correct Answer is 3. Corolla and Androecium
Three subfamilies of Family Fabaceae or Leguminosae are 1. Papilionaceae In which corolla is polypetalous and descending imbriicate, vexillary aestivation with diadelpous Androecium. 2. Caesalpinoideae in which corolla is Polypetalous and ascending imbricate aestivation with polyandrous Condition. 3. Mimosoideae in which corolla is gamopetalous, valvate aestivation with polyandrous and exerted androecium