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Background: The African genus Schistostephium has eight species in southern and south tropical Africa. The most widely… Expand SummaryThe African genus Schistostephium Less. (Compositae: Anthemideae) is revised; eight species are recognised. A key to the… Expand New perennial canker diseases of Abies veitchii and Acer crataegifolium are described. Pathogenicity of the causal fungus was… Expand