Family Psilotaceae Griffith and Henfrey 1855 (fern)
Pteridopsida - Psilotales - Ophioglossidae
Parent taxon: Psilotales according to PPG. I 2016
See also Knowlton 1919 and Mabberley 2000
Sister taxa: none
Subtaxa: Psilotum Tmesipteris
Distribution: