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TitleFlavonoid characters contributing to the taxonomic revision of the Hebe parviflora complex
Publication TypeJournal Article
Year of Publication2001
AuthorsMitchell, K.A., Markham K.R., and Bayly M.J.
Pagination453 - 461
Date Published2001
ISSN00319422 (ISSN)
Keywordsangiosperm, Angiosperms, apigenin derivative, article, bioflavonoid, chemical structure, chemotaxonomy, Chromatography, High Pressure Liquid, flavonoid, Flavonoids, glycoside, Hebe, Hebe parviflora, Hebe stenophylla, high performance liquid chromatography, hypolaetin 8 glucoside, kaempferol, luteolin, Magnetic Resonance Spectroscopy, Magnoliophyta, morphology, nonhuman, nuclear magnetic resonance spectroscopy, plant, quercetin derivative, Scrophulariaceae, species difference, Species Specificity, Stenophylla
AbstractComparative flavonoid chemistry is a key element of a multidisciplinary study aimed at a revision of the genus Hebe. New Zealand's largest genus of flowering plants. One aspect of this study has been an investigation of the Hebe parviflora complex. A recent botanical paper on this topic marshalls generalised flavonoid data and morphological characters to support the recognition of two species in this complex. Hebe stenophylla and Hebe parviflora, which are clearly distinguishable from each other and from the related Hebe traversii and Hebe strictissimo. A detailed study of the flavonoid chemistry and the distributional data used to support these conclusions are presented here. Six new compounds have been isolated in this study, including 6-hydroxyapigenin-7-O-β-[2-O-β-xyloxyloside] and-7-O-β-[2-O-β-xyloglucoside], 6-hydroxyluteolin-7-O-β-[2-O-β-xyloxyloside] and luteolin-, 6-hydroxyluteolin- and 4′-O-methylluteolin-7-O-β-[6-O-β-xyloglucoside]. Other flavonoids include apigenin and luteolin 7- and 4′- mono-, di- and possibly tri-O-glycosides, 8-hydroxyluteolin 7- and 8-O-glucosides, and kaempferol and quercetin 3-O-mono- and di-glycosides. New structure assignments are supported with detailed 1H and 13C NMR data, including HMQC and HMBC measurements. © 2001 Elsevier Science Ltd.

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