genus Hymenophyllum, Hymenophyllum - type genus of the Hymenophyllaceae: filmy ferns

genus Trichomanes, Trichomanes - bristle ferns; kidney ferns

fern family - families of ferns and fern allies

Filicales, order Filicales, order Polypodiales, Polypodiales - true (leptosporangiate) ferns