 To reflect these recent discoveries Atsushi Ebihara and Kunio Iwatsuki, in 2006, revised the taxonomy of Hymenophyllaceae to place all species of the "hymenophylloid" clade in a single genus "Hymenophyllum", and to place the eight clear "trichomanoid" subclades in eight corresponding genera.This subdivision was recognized by Smith et al.in 2006 and Christenhusz et al.