What is heterophylly ? Briefly describe its types.

Explanation

Heterophylly : It is the occurance of more than one type of leaves on the same plant. It is of the following types :
i) Adaptive Heterophylly : Submerged leaves are different from floating and emerged leaves of the same plant due to different adaptations. For example, Limnophila heterophylla.
ii) Envirenmental heterophylly : The heterophylly is due to change in environment including soil, temperature, humidity and air currents e.g. Limnophila.
iii) Developmental heterophylly : Young leaves of plant is different from mature leaves. For example, Eucalyptus.
iv) Habitual Heterophylly : Leaves of different shape and incisions occur at the same time. For example, Jack fruit tree, Broussonetia.