November 28, 2016

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  • Illustrations of light microscope wood sections (A, B, E, F) and scanning electron microscope surfaces (C, D) showing the marked wood anatomical difference between Viburnum (A, C, E) and Sambucus (B, D, F).

    The transition from scalariform-to-simple vessel perforation plates

    Flowering plants with simple vessel perforations have evolved from species bearing scalariform perforations but there is a scarcity of integrative studies explaining why these transitions in wood evolution have happened. Lens et al. find that Viburnum, characterised by scalariform vessel perforations (ancestral), diversified earlier than the closely related Sambucus, characterised by simple perforations (derived). The […] More