Dipteridaceae Seward & E.Dale

Terrestrial or lithophytic, sometimes rheophytic, ferns. Rhizome long-creeping, bearing coarse dark long-tapering bristles; scales lacking; stele a radial solenostele. Stipe not articulated to the rhizome, spaced along it at varying intervals. Lamina divided into 2 flabellate halves, each usually with ± deeply incised lobes; main veins repeatedly forked; secondary veins finer and copiously anastomosing, with free included veinlets in the areoles. Sori exindusiate, small, round, scattered over the surface or, in narrow-lobed species, irregularly few–seriate; sporangia small, with ± complete, oblique annulus; hair-like paraphyses with swollen apical cell usually present. Spores monolete, bilateral, pale, smooth or sometimes rugulose.

Most species are found in exposed or disturbed areas, often in quite sunny conditions.