Plants terrestrial or epilithic. Rhizome rooting at irregular intervals, wide-creeping, irregularly branched, corneous, castaneous, nitid or opaque, to 2.5 mm in diameter, initially moderately set with scales, glabrous later, scales crustaceous, castaneous, stellate to lanceolate, peltate to cordate-imbricate, fimbriate, to 1.5 mm long, to 0.5 mm wide. Fronds spaced, to 150 mm apart, scandent, with indeterminate growth; stipe corneous, castaneous, often nitid, terete, to 410 mm long, to 1.8 mm in diameter, initially sparsely set with scales similar to those on the rhizome, glabrous later; lamina catadromous, pinnately branched, with one or more storeys of consecutive pinna pairs arising from each side of the terminal rachis bud; rachis castaneous, terete, to 1.2 mm in diameter, initially densely set with scales, glabrous later, scales chartaceous, ferrugineous, lanceolate to narrowly ovate, cordate-imbricate, fimbriate, to 2 mm long, to 1.6 mm wide; pinnae pinnately branched, with one or more storeys of consecutive pinna-branch pairs arising each side of the scaled terminal bud; pinna-rachis castaneous, terete, to 1 mm in diameter, initially densely set with scales similar to those on the rachis, glabrous later; pinna-branches pseudo-dichotomously branched, with a scaled dormant bud in the axil, all pinna branches set with spaced ultimate branches, oblong-acuminate to narrowly ovate, to 220 mm long, to 125 mm wide; ultimate branches opposite to alternate, linear-acuminate, to 80 mm long, to 4 mm wide, with firmly herbaceous to coriaceous segments, segments adnate, dark green adaxially, glaucous abaxially, rounded to triangular, to 2 mm long, to 1.2 mm wide. Venation obscure, pinnately branched in the segments, vein branches simple. Sori circular, immersed, single on each segment, on an acroscopic vein branch, with 3-4 sporangia per sorus, exindusiate. Sporangium short-stalked, multiseriate, annulus oblique, complete. Spores numerous, globose, trilete, with prolonged angles, shallowly rugate, to 33 x 38 µm.
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Rhizome 1-2.5 mm in diameter, set with long-spined dark brown scales up to 0.5 mm in diameter. Fronds spaced 20-200 mm apart, bifurcate to reniform-lunate in outline, with 1 (rarely 2) level of false dichotomy in each lateral branch system arising from each side of terminal bud; all branches bearing distant foliar segments; stipe castaneous, glabrous or with a few scales similar to those on rhizome, shallowly sulcate, up to 600 x 1.5 mm; aborted apical buds up to 1.2 mm long, set with dark brown lanceolate laciniate scales (sometimes with black spines); pinnules linear, usually glabrous, up to 70 x 7.5 mm, divided into lobes, under surface green to glaucous, 3 x 2 mm. Sori partially immersed in lamina, consisting of 2-4 sporangia, each in a separate but adjoining pit.
Rhizome widely creeping, up to 2 mm in diam., scaled. Fronds widely spaced, axes wiry, falsely dichotomously branched, with a terminal bud in each false dichotomy; ultimate branches with pinnatifid pinnae. Pinnae linear, up to 45 x 4 mm, pinnatifid, lobes herbaceous, sessile. Sori partially immersed in lamina bearing 2-4 sporangia
Terrestrial or epilithic. Rhizome widely creeping. Fronds widely spaced, pseudo-dichotomously branched, ultimate branches 2-pinnate; pinnules widely spaced, lobed, linear, ± 70 x 7.5 mm, present on all branches. Sporangia in small round sori, partially immersed in lamina surface.
Rhizomatous perennial. Fronds widely spaced, falsely dichotomously branched with a terminal bud in each false dichotomy, all branches bearing foliar segments, pinnules linear, lobed. Null Sori partially immersed in lamina bearing 2-4 sporangia.
Rhizome set with long-spined, dark brown scales. Branches of ultimate dichotomy bipinnate. Foliar segments (pinnules) divided to midrib into rounded deltate lobes. Sori sunken into lamina.
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