Major evolutionary events in the origin and diversification of the fern genus Polystichum (Dryopteridaceae).

Abstract

Recent advances in molecular systematics of the ferns make it possible to address long-standing questions about classification of the major fern genera, such as the worldwide genus Polystichum (Dryopteridaceae), comprising at least 200 species. In this study we examined rbcL sequences and morphological characters from 55 fern taxa: 34 were from Polystichum… (More)
DOI: 10.3732/ajb.90.3.508

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