is a specific kind of: family.

is a broader term that covers: family Hymenophyllaceae, Hymenophyllaceae | family Osmundaceae, Osmundaceae | family Schizaeaceae, Schizaeaceae | family Marsileaceae, Marsileaceae | family Salviniaceae, Salviniaceae | Azollaceae, family Azollaceae | family Ophioglossaceae, Ophioglossaceae | family Gleicheniaceae, Gleicheniaceae | family Parkeriaceae, Parkeriaceae | family Polypodiaceae, Polypodiaceae | Adiantaceae, family Adiantaceae | family Vittariaceae, Vittariaceae | Aspleniaceae, family Aspleniaceae | Blechnaceae, family Blechnaceae | Cyatheaceae, family Cyatheaceae | Davalliaceae, family Davalliaceae | Dennstaedtiaceae, family Dennstaedtiaceae | Dicksoniaceae, family Dicksoniaceae | Athyriaceae, Dryopteridaceae, family Athyriaceae, family Dryopteridaceae | family Lomariopsidaceae, Lomariopsidaceae | family Lophosoriaceae, Lophosoriaceae | family Loxomataceae, Loxomataceae | family Oleandraceae, Oleandraceae | family Pteridaceae, Pteridaceae | family Marattiaceae, Marattiaceae | family Psilotaceae, Psilotaceae | family Psilophytaceae, Psilophytaceae | family Rhyniaceae, Rhyniaceae | Equisetaceae, family Equisetaceae, horsetail family | family Lepidodendraceae, Lepidodendraceae | clubmoss family, family Lycopodiaceae, Lycopodiaceae | family Selaginellaceae, Selaginellaceae | family Isoetaceae, Isoetaceae, quillwort family | Cryptogrammataceae, family Cryptogrammataceae | family Thelypteridaceae, Thelypteridaceae ... show more.

is a member of: division Pteridophyta, Pteridophyta.