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Evolution and loss of long-fringed petals: a case study using a dated phylogeny of the snake gourds, Trichosanthes (Cucurbitaceae)

Hugo J de Boer*, Hanno Schaefer, Mats Thulin and Susanne S Renner

BMC Evolutionary Biology 2012, 12:108  doi:10.1186/1471-2148-12-108