Sori marginal, finally continuous along seg.; protected by scarious margin and by a true indusium. Spores bilateral, smooth. Rhizome far-creeping, solenostelic, hairy. Fronds finely dissected, axes us. rough, rhachis us. zigzag; veins free except among sori. Terrestrial ferns with about 12 spp. of tropical America, Tahiti, Luzon, Sumatra, N.Z.
Inner indusium present