Flora of New Zealand Series

Rhizomes erect to long-creeping, bearing clathrate scales. Fronds entire to 1-5-pinnate. Sporangia borne on abaxial surface of frond, in elongated sori along veins, protected by elongated indusia. Annulus vertical. Homosporous; spores lacking chlorophyll.

5-14 genera according to interpretation, cosmopolitan.