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Plants terrestrial or epilithic. Rhizome creeping, branched, to 4 mm in diameter, set with roots, spaced stipe bases and scales, scales chartaceus, ferrugineus, sessile, subulate, cordate to hastate, entire to denticulate, apex terminates in a subulate cell, to 5 mm long, to 0.7 mm wide. Fronds to 7 mm apart, erect to arching, or pendent, to 420 mm long; stipe firm, atrocastaneus, nitid, terete, to 215 mm long, to 1.2 mm in diameter, initially sparsely set with scales similar to those on the rhizome, glabrous later; lamina anadromous, ovate to broadly ovate, to 3-pinnate, to 270 mm long, to 240 mm wide, with up to 9 pinna pairs; rachis and lower order axes atrocastaneus, nitid, terete, glabrous; pinnae petiolate, petiole to 23 mm long, alternate, basal pinnae largest, widely spaced, more closely spaced distally, spaced or overlapping, to 2-pinnate, basal pinnae often basiscopically developed, inaequilaterally broadly ovate to narrowly elliptic, to 140 mm long, to 80 mm wide, with up to 6 pinnule pairs; pinnules petiolate, petiole to 8 mm long, alternate, spaced to overlapping, broadly ovate to narrowly elliptic, acroscopic pinnule on the basal pinna to 42 mm long, to 32 mm wide, basiscopic pinnule on basal pinna to 62 mm long, to 40 mm wide; segments petiolate, petioles to 3 mm long, alternate, filiform, thinly herbaceous, glabrous, narrowly to broadly cuneate, to 26 mm long, to 25 mm wide, variously lobed, lobes oblong-obtuse, dentate. Venation flabellately forked, ending in margin in the teeth. Sori borne along outer margin of segment lobes, on soral flaps which veins enter, soral flaps lunate to oblong, to 5 mm long, to 1 mm wide; sporangia confined to veins, sessile, capsule circular to obovate in lateral view, with (17-)21(-22) indurated annulus cells, epistomium (3-)4(-5)-celled, hypostomium (4-)4(-5)-celled, stomium with 4 to 5 narrow cells of which walls are conspicuously thickened. Spores 64 per sporangium, brown, tetrahedral-globose, trilete, rugose, exospore (40-)46.82(-52) (m in equatorial diameter. Figure 20C & D.