September 20, 2013

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  • Variation and evolution of herkogamy in Exochaenium
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    Variation and evolution of herkogamy in Exochaenium

    The spatial separation of stigmas and anthers (herkogamy) functions to reduce self-pollination and avoid interference between pollen dispersal and receipt. Little is known about the evolutionary relationships among the main forms of herkogamy. Kissling and Barrett examine those relationships in Exochaenium, a genus of African herbs, using phylogeny reconstruction. They find that distyly originated once […] More