Pilulariaceae family synonym

Hydropteridiaceae family accepted

Salviniaceae family accepted

Pseudo-salvinia L.Piton, 1940 genus accepted

Dorfiella R.Weber, 1976 genus doubtful

Parazollopsis C.A.LaPasha & C.N.Miller, 1985 genus accepted

Heroleandraceae family accepted

Cystorrhiza Massalongo, 1859 genus synonym

Marsilaceae family synonym

Hydropteridaceae family synonym

Azinia G.A.Balueva, 1964 genus doubtful

Marsileaceae family accepted

Azollaceae family doubtful

Marsiliaceae family synonym