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Pistillate flowers of S. mucugensis in epifluorescence microscopy: (A) pollen grains germinating (arrow) and pollen tubes penetrating the stigma (xenogamy; 24 h); (B) ovules penetrated by pollen tubes—arrows indicate fertilization (xenogamy; 48 h); (C) seed beginning to develop—arrow indicates the proembryo (xenogamy; 4 d); (D) gynoecium, showing the styles and appendices—arrow indicates the phloem cells of the appendices (light fluorescence).
