Cystopteris Bernh.
Sori globose; indusium delicate, attached at base, elsewhere free. Sporangia globose, without paraphyses; spores reniform, smooth to muriculate. Rhizome short, clad in brown broad attenuate paleae. Lamina thin, flaccid, pinnate to bipinnate; veins free. A few spp. of uncertain delimitation.
