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Bioautograms of extracts of Bucida buceras, Breonadia salicina, Harpephyllum caffrum and Olinia ventosa. Chromatograms were developed in CEF and sprayed with Penicillium janthinellum. White areas indicate inhibition of fungal growth. Lanes from left to right: acetone (A), hexane (H), DCM (D) and methanol (M)
