Ophioglossidae is one of the four subclasses of Polypodiopsida (ferns). This subclass consists of the ferns commonly known as whisk ferns, grape ferns...

subclass (Ophioglossidae and Psilotidae). Christenhusz et al. (2011) followed this use of subclasses but recombined Smith's Psilotopsida as Ophioglossidae, giving...

which together with the Psilotales is placed in the subclass Ophioglossidae. The Ophioglossidae are one of the groups traditionally known as eusporangiate...

genera, approx. 10,535 species Subclass Equisetidae Warm. Subclass Ophioglossidae Klinge Subclass Marattiidae Klinge Subclass Polypodiidae Cronquist,...

a member of subclass Ophioglossidae, equivalent to Smith's Psilotopsida. The placement of Psilotales in subclass Ophioglossidae has subsequently been...

†Stauropteridaceae †Zygopterididae †Rhacophytales †Rhacophytaceae †Zygopteridales †Zygopteridaceae Equisetidae Ophioglossidae Marattiidae Polypodiidae...

†Stauropteridaceae †Zygopterididae †Rhacophytales †Rhacophytaceae †Zygopteridales †Zygopteridaceae Equisetidae Ophioglossidae Marattiidae Polypodiidae...

Ophioglossidae...

†Stauropteridaceae †Zygopterididae †Rhacophytales †Rhacophytaceae †Zygopteridales †Zygopteridaceae Equisetidae Ophioglossidae Marattiidae Polypodiidae...

†Stauropteridaceae †Zygopterididae †Rhacophytales †Rhacophytaceae †Zygopteridales †Zygopteridaceae Equisetidae Ophioglossidae Marattiidae Polypodiidae...