Question

In Bentham and Hooker's system of classification the arrangement of three series of polypetalae reflects evolution from

• A. Bisexuality of unisexuality
• B. Dichlamydeous to monochlamydeous condition
• C. Hypogyny to epigyny
• D. Apocarpy to syncarpy

Answer 1

Answer: (C)

Hypogyny to epigyny

Bentham and Hooker's arranged Dicotyledons as:

1. Polypetalae

2. Gamopetalae

3. Monochlamydeae

The Polypetalae is further arranged as:

Series I: Thalamiflorae- hypogynous flowers

Series II: Disciflorae- hypogynous flowers with the nectariferous disc.

Series III: Calyciflorae: perigynous to epigynous flowers.

So, the arrangement was made from hypogyny to epigyny.

Hence, the correct answer is 'Hypogyny to epigyny'