On the monophyly of subfamily Tectarioideae (Polypodiaceae) and the phylogenetic placement of some associated fern genera

摘要: The fern genus Tectaria has generally been placed in the family Tectariaceae or subfamily Tectarioideae (placed Dennstaedtiaceae, Dryopteridaceae Polypodiaceae), both of which have variously circumscribed past. Here we study for first time phylogenetic relationships associated genera Hypoderris (endemic to Caribbean), Cionidium New Caledonia) and Pseudotectaria Madagascar Comoros) using DNA sequence data. Based on a broad sampling 72 species eupolypods I (= Polypodiaceae sensu lato ) three plastid regions ( atpA , rbcL trnL-F intergenic spacer) were able place previously unsampled genera. Our results show that like Ctenitopsis Fadyenia Hemigramma Quercifilix is embedded monophyly therefore corroborated only if these segregate are included. sister brauniana together they Triplophyllum was found be monophyletic. Despite their morphological similarity with Pleocnemia Dryopteridoideae. (former Tectariaceae) hereby defined include Arthropteris Pteridrys . Aenigmopteris may also belong here, but this remains unsampled.