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Biflavonoids, Quinones and Xanthones as Rare Chemical Markers in the Family Iridaceae

1985; De Gruyter; Volume: 40; Issue: 5-6 Linguagem: Inglês

10.1515/znc-1985-5-608

1865-7125

Christine A. Williams, Jeffrey B. Harborne,

Plant and Fungal Species Descriptions

Abstract Amentoflavone has been characterised from leaves of Patersonia glabrata. This is the first report of a biflavone in the Monocotyledoneae. The quinone plumbagin, a characteristic con­stituent of three dicotyledonous families, is now found to be a useful marker for the genus Aristea; it also occurs in two Sisyrinchium species and in Sparaxis tricolor. Mangiferin, a C-glucosylxan-thone known previously in the Iridaceae only from Crocus, Iris and Gynandriris has now been found in Eleutherine, Rigidella, Gelasine and Tigridia. results is discussed.