(N/A) Venation is the arrangement of veins and veinlets in the lamina of a leaf. The two main types are:
$1$. Reticulate venation: When the veinlets form a network,as seen in dicot leaves (e.g.,China rose,pea,Pipal).
$2$. Parallel venation: When the veins run parallel to each other within a lamina,as seen in monocot leaves (e.g.,grass,wheat,maize).
| Monocot leaf | Dicot leaf |
| :--- | :--- |
| Veins are parallel to each other. It is parallel venation. | Veins and veinlets form a net-like structure in the leaf lamina. It is called reticulate venation. |
| Generally seen in monocot plants. | Generally seen in dicot plants. |
| Examples: Grass,wheat,maize. | Examples: China rose,pea,Pipal. |