May 18, 2015

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  • Petal spur development in Centranthus
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    Petal spur development in Centranthus

    When concealed by petal spurs, nectar typically is restricted to flower-visiting animals possessing a sufficient tongue length to acquire it, and thus such spurs have evolutionary significance, often leading to speciation. Mack and Davis microscopically examine petal spur growth in Centranthus ruber and find that cell divisions dominate very early in development but it is cell […] More