Tectariaceae is a family of Leptosporangiate ferns in the order Polypodiales. It comprises 10 genera, of which Tectaria is by far the largest. In 1990, Karl U. Kramer and coauthors treated Pleocnemia and 7 of the currently recognized genera as a subfamily of Dryopteridaceae. Two other genera, Arthropteris and Psammiosorus, along with Oleandra, constituted Kramer's Oleandraceae. It is now known that Kramer's version of Dryopteridaceae is polyphyletic. Arthropteris (including Psammiosorus) lies within Tectariaceae and Tectariaceae is sister to a clade consisting of Oleandraceae, Davalliaceae, and Polypodiaceae. In 2006, in a revision of fern classification, Tectariaceae was an accepted family. In 2007, a molecular phylogenetic study of Dryopteridaceae included Pleocnemia and showed that it b