Question

what is a origin of a leaf called?

Answer 1

Answer:

A leaf is often organized with one main vein running down the middle of the blade. This vein is called the midrib. All of the veins, the petiole, and the midrib help position the blade so that it is facing the light source. Veins. Veins of flowering plants are found in several patterns.

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Answer 2

In the shoot system of plants the leaf is the principal lateral appendage of stem. ... The former states that the leaves originated from telome trusses. A telome truss consists of telome and mesome. The ultimate dichotomy of fossil plants like Rhynia, Hornea etc. is called telome.

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