Hypodematiaceae was erected by Ren-Chang Ching in 1975,[3][4] but was not subsequently accepted by many authors. It was not accepted in a classification of ferns that was published in 2006.[5] In that paper, the genera Hypodematium, Leucostegia, and Didymochlaena were provisionally assigned to Dryopteridaceae, with the authors expressing some doubt about whether they really belonged there. In two molecular phylogeneticstudies published in 2007, the clade that was tentatively called eupolypods I was resolved as a tritomy consisting of Didymochlaena, Hypodematiaceae sensu stricto, and the rest of eupolypods I.[6][7]
Phylogeny
The following cladogram for the suborder Polypodiineae (eupolypods I), based on the consensus cladogram in the Pteridophyte Phylogeny Group classification of 2016 (PPG I),[1] shows a likely phylogenetic relationship between Hypodematiaceae and the other families of the clade.
^James L. Reveal. 2008 onward. "A Checklist of Family and Suprafamilial Names for Extant Vascular Plants." At: Home page of James L. Reveal and C. Rose Broome. (see External links below).
^Alan R. Smith, Kathleen M. Pryer, Eric Schuettpelz, Petra Korall, Harald Schneider, and Paul G. Wolf. 2006. "A classification for extant ferns". Taxon55(3):705–731 doi:10.2307/25065646 (See External links below)
^Eric Schuettpelz and Kathleen M. Pryer. 2007. "Fern phylogeny inferred from 400 leptosporangiate species and 3 plastid genes". Taxon56(4):1037-1050.
^Hong-Mei Liu, Xian-Chun Zhang, Wei Wang, Yin-Long Qiu, and Zhi-Duan Chen. 2007. "Molecular Phylogeny of the Fern Family Dryopteridaceae inferred from Chloroplast rbcL and atpB Genes". International Journal of Plant Sciences168(9):1311-1323. doi:10.1086/521710
