Question

Venation in which veins and veinlets are irregularly distributed over the entire lamina

Answer 1

Answer:

In reticulate venation, veins and veinlets are irregularly distributed over the entire lamina.

Explanation:

What is venation:

• Venation is the process of vein formation on the leaf. There are two forms of venation.

1. Reticulate venation
2. Parallel venation

What is reticulate venation:

• Reticulate venation is characterised by irregular vein patterns that form a network.
• Veins are organised in a network and are found predominantly in dicots.
• It can be divided into two categories:

1. Pinnate reticulate venation – one midvein is present.
2. Unicostate reticulate venation -  and all other veins form a mesh-like structure.

• Hibiscus, papaya, Tulsi leaves, coriander, China Rose, Mangifera, etc. are examples.

Answer 2

Answer:

Reticulate venation is the type in which veins and veinlets are irregularly distributed across the entire lamina.

Explanation:

As we have already learnt, venation is the process of the formation and distribution of veins in the leaf. This can be of 2 types - parallel, and reticulate.

In plants with reticulate venation, the veins are irregularly arranged, with no specific pattern. Sometimes, they have a spider web-like appearance, too.

This is usually found in dicot plants, and can be either pinnate or unicostate.

In plants with pinnate venation, there is 1 central midvein, while in plants with unicostate venation, the veins form a mesh-like structure.

The main plants exhibiting this type of venation are Hibiscus, coriander, mangifera, tulsi, etc.

#SPJ2