Question

where do veins and veinlets arise from?

Answer 1

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The arrangement of veins and veinlets in the lamina of the leaf is known as venation. It is of two types:-

Reticulate venation, the lateral veins divide and re-divide to form many veinlets. These are arranged in a net-like fashion or reticulum. It is the characteristic feature of dicot plants.

Parallel venation, veins, and veinlets run parallel to each other and are the characteristic feature of monocot plants.

So, the correct option is 'Venation'

Answer 2

Answer:

It usually has a stalk called petiole and a pair of very small leaves at the base of the petiole called stipules. The broad expanded green part of the leaf is called lamina, which has a thick midrib at the centre. On either side of the midrib, thin veins branch out to form a network of veins or veinlets