(i) Simple leaf and compound leaf.
1. Simple leaf: In a simple leaf, the lamina is undivided and is a single piece, e.g., mango, banana, banyan, etc.
2. Compound leaf: In a compound leaf, the leaf blade or lamina is divided into smaller units called leaflets e.g., rose.
(ii) Parallel venation and reticular venation.
1. Parallel venation: In this type of venation, veins run parallel to each other, e.g., banana, grass, maize and wheat leaves (monocot plants).
2. Reticulate venation: In this type of venation, veins and veinlets are irregularly distributed in the lamina, forming a network, e.g. peepal, mango and guava leaves (dicot plants).
