作者: Ceres Maria Andrade da Mata Rezende , Otto Richard Gottlieb
DOI: 10.1016/0305-1978(73)90024-0
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摘要: Abstract An evolutionary scheme for shikimate-acetate derived xanthones is deduced from their substitution pattern. Increasing distance of a particular xanthone the primitive precursor symbolized by increasing numbers. Each containing plant species characterized average numbers attributed to its constituents. genus calculated species. The method useful in comparing phyletic order genera within Guttiferae.