The flavonoids of ferns in the isolated genera Loxsoma and Loxsomopsis |
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Authors: | Ken R. Markham David R. Given |
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Affiliation: | 1. Chemistry Division, D.S.I.R., Petone, New Zealand;2. Botany Division, D.S.I.R., Christchurch, New Zealand |
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Abstract: | Kaempferol and quercetin 3-O-glucosides and 3-O-rhamnoglucosides are common to both Loxsoma cunninghamii and Loxsomopsis costaricensis, but in the former the new flavonoid glycosides, kaempferol and quercetin 3-O-glucoside-7-O-arabinoside have also been identified. The data are consistent with the proposed taxonomic relationship between these geographically isolated genera. Comparative flavonoid chemistry indicates that the Loxsomaceae may be a primitive family, not closely related to the Hymenophyllaceae or the Cyatheaceae. |
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Keywords: | Loxsomaceae filicales flavonol glycosides chemosystematics |
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