Oleandraceae Ching ex Pic.Serm.

Terrestrial, lithophytic or epiphytic homosporous ferns. Rhizome short-to long-creeping, sometimes erect, often much branched, with a dictyostele, scaly; scales peltate, elongate, tapering, with marginal and superficial hairs. Roots arising from ventral side of creeping rhizomes; often unbranched proximally. Fronds simple, entire, monomorphic or dimorphic (not in Australia), often with non-peltate scales on the costa or occasionally on lamina, often with acicular or capitate hairs on veins; venation forked, free or with occasional irregular anastomoses; hydathodes at vein endings. Stipes spread along the rhizome or clustered and whorl-like, arising from all sides of rhizome or dorsally only when creeping, with an articulation point. Sori in one row on each side of the costa; indusia reinform or round, glabrous or hairy. Spores monolete, reinform or ellipsoid, usually with echinate wing-like folds, lacking chlorophyll.