Clades:
Polypodiaceae.
Region: Australia, Malesia.
Habitat: in low to upper montane vine forest and wet-slcerophyll forest.
Use: ornamental, in hanging basket, in a tropical garden or fernery.
BotanyFern; epiphyte or lithophyte.
Root: rhizome, long-creeping, chalky white; scales clathrate, ± deciduous, reddish brown, 2–6 mm long, 0.5–1.6 mm wide; base broad, rounded, tapering to a long narrow hair-like apex; margins with short fine rigid teeth.
Leaves: monomorphic; 10 to 120 cm long; stipes 5 to 63 cm long, distant, articulated to short phyllopodia, scaly at base; scales as for rhizome but usually longer, narrower; 1-pinnate, becoming pendulous; pinnae very narrowly ovate to linear, 1 to 2.5 cm apart, articulated to rachis, 0.3 to 25 cm long, 0.25 to 2 cm wide, sessile; base truncate, cordate or very broadly cuneate, often slightly lobed on 1 or both sides, tapering to an acute apex; margins shallowly and bluntly dentate, thin, firm, clothed with soft pale hairs when young, glabrescent apart from small scattered scales on main rachis and on lower surface of costae; veins usually forming 2 series of areoles between costa and margin; outer series mostly without free included veinlets.
Sori: solitary in each of the innermost areoles, not ringed by dark scale-like paraphyses; sporangia immersed in shallow depressions. Spores 32.5–52.5 µm long, 17.5–25 µm wide.