Abstract
Seven species ofArachniodes from Japan and the Philippines were examined for phloroglucinol derivatives and glandularity of rhizome and petiole bases. For comparison 3 species ofDryopteris, 2 species ofNothoperanema, 3 species ofPolystichum, 1 species ofAcrophorus and 2 species ofCtenitis were investigated as well.
Phloroglucinol derivatives were detected for the first time in the following taxa:Arachniodes assamica, A. cavalerii, A. tripinnata, A. yasu-inouei, Dryopteris pulvinulifera, D. cochleata, Polystichum rigens, Acrophorus nodosus, Ctenitis setosa andC. subglandulosa. The phloroglucinols ofDryopteris, Arachniodes andPolystichum are structurally related in agreement with the taxonomic relationships of these genera. On the other hand, the less related generaAcrophorus andCtenitis contain several unknown phloroglucinols not identical with those occurring in the former genera. The phloroglucinol containing species ofArachniodes, Polystichum, Acrophorus andCtenitis contain external glands, whereasDryopteris pulvinulifera andD. cochleata have both internal and external glands.
The species of the genusNothoperanema seem to completely lack phloroglucinols and glands.
The phloroglucinol composition of most taxa investigated is almost constant except for that inArachnoides amabilis and its varieties,A. aristata (A. exilis) andPolystichum tsus-simense. These species show varying phloroglucinol spectra in materials collected from different geographical sources.
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Widén, CJ., Huure, A., Sarvela, J. et al. Chemotaxonomic studies onArachniodes (Dryopteridaceae) II. Phloroglucinol derivatives and taxonomic evaluation. Bot Mag Tokyo 91, 247–254 (1978). https://doi.org/10.1007/BF02488938
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DOI: https://doi.org/10.1007/BF02488938