In Acacia species, the first few leaves are p | vedclass

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Question

(a) In several species, of Australian Acacia (e.g.,$ A. melanoxylon, A. auriculiformis$), the petiole and part of rachis expands to form phyllode.

Ph

Vedclass · Accepted Answer

Leaves of adult plant are reduced to phyllodes while those of the seedling are unreduced

Vedclass · Answer

(a) In several species, of Australian Acacia (e.g.,$ A. melanoxylon, A. auriculiformis$), the petiole and part of rachis expands to form phyllode.

Phyllodes are vertical, have fewer stomata and therefore, lose less water in transpiration.

In Acacia species, the first few leaves are pinnately compound. Then there are leaves with flattened petiole and fewer pinnae. The leaves of adult plant has parallel veined flattened petiole and no pinnae. It shows that