Question

What are the principles of Hutchinson classification?

Answer 1

Answer:

i) Plants with petals and sepals associated with other floral and anatomical character are primitive and more ancient than the plants without sepals.

ii) Free floral parts are more primitive than the agnate or connate parts.

iii) Spiral arrangement of floral parts sepals petals and stamens are more primitive than cyclic arrangement.

iv) Hermaphrodite condition and free stamens are primitive over the unisexual flowers and connate stamens.

v) A regular or actinomerphic flower is primitive with zygomorphic flowers.

vi) Solitary flower is more primitive than the inflorescenced flowers.

vii) Hypogyny is more primitive than epigyny and perigyny conditions.

viii) A flower with indefinite number of floral parts is primitive over few numbers of floral parts.

Answer 2

The Hutchinson's classification broadly divided angiosperms into: Dicotyledons. Monocotyledons.