Slide 39
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WIND DISPERSAL IN LECYTHIDACEAE REFLECTS CONVERGENCE RATHER THAN PHYLOGENETIC RELATIONSHIPS
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Cross section of seed body (left) and seed wing (right) of Cariniana legalis.
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Cross section of entire seed (left), seed body (middle), and seed wing (right) of Couratari stellata. |
Note that the wind-dispersed seeds of species of these two genera are entirely different. Cariniana has a unilateral wing and a seed wing that lacks a developed exotesta (EX) while Couratari has a circumferential wing and a seed wing with a well-developed exotesta.