PLANTS
THE LEAF
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The outline of lamina is called
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leaf apex
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leaf base
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leaf blade
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leaf margin
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Explanation:
Detailed explanation-1: -Many leaves consist of a stalk-like petiole and a wide, flat blade (lamina). The midrib extends from the petiole to the leaf tip and contains the main vein. Additional veins branch from the midvein. The margin is the edge of the leaf.
Detailed explanation-2: -The outline of the leaf blade is called the leaf margin.
Detailed explanation-3: -The lamina part of the leaf is called as epipodium.
Detailed explanation-4: -The margin of the lamina may be : (1) Entire-when the margin is smooth as in mango. (2) Repand-margin wavy as in Polyalthia. (3) Serrate-margin with teeth pointed upwards as in a saw, e.g., china-rose, rose, etc. (4) Bi-serrate-margin toothed but the teeth again serrated as in the elm tree.
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