What is the function of the 'double leaf' (I'm unsure what the technical name is...) on a pomelo tree leaf?
Furthermore, what evolutionary 'problem' is this structure solving?
See image with arrows that indicate the two parts to the leaf.
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$\begingroup$ It's a lobed stem, i.e. the stem of the leaf has lobed mini leaves. It looks like the leaf originally was like this, and the stem developed lobes: upload.wikimedia.org/wikipedia/commons/thumb/2/24/… $\endgroup$– bandybabboonOct 22, 2020 at 15:25
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