Differentiate pinnate unicostate with palmate multicostate venation.

Explanation

Pinnate unicostate venation:
It has only one mid rib at the centre from which lateral branches arise and form a network.
Palmate multicostate venation:
There are two or more principal veins arising from a point antl proceed upwards.
Pinnate unicostate and Palmate multicostate types of venation occur both in reticulate and parallel venation.