FZ volume:0 part:0 (1970) Athyriaceae by E. A. C. L. E. Schelpe
Terrestrial plants. Rhizome creeping, or more usually erect, forming a short caudex in some species, and set with non-clathrate scales. Stipe not articulated, with 2 vascular strands uniting upwards into a U-shaped strand, often papillate at the base at the sites of fallen scales. Lamina pinnate to 3-pinnate, the costal grooves with uninterrupted raised edges, veins free or anastomosing. Sori superficial, round, elongate, or J-shaped, with or without indusia. Spores monolete with perispore.