Dicksoniaceae M.R.Schomb.
Sori marginal, terminal on veinlets, protected by incurved lobes of pinnules and a concavo-convex indusium. Sporangia gradate, annulus conspicuous, oblique; spores tetrahedral. Stock develops into a stout erect or sts prostrate caudex densely clad in hairs or bristles. Fronds large, decompound, veins free. About 4 genera and some 30 spp., mainly tropical.