Caudex short, suberect; stipe 30 cm long, cas-taneous, hairy in the groove only, basal scales 12 × 1 mm, firm, dark; lamina to 50 cm long, firm; free and adnate pinnae to 6 pairs; apical lamina 13 cm long, acuminate, lobed almost to its axis, its basal lobes 6 × 1.3 cm, upcurved, deeply crenate; upper pinnae similar with crenate lobes; basal pinnae to 25 cm long (stalk to 5 cm), oblique-ascending, bearing several pairs of pinnules; basal basiscopic pinnule 12.5 × 5.5 cm with 1 or 2 pairs of free tertiary leaflets; basal acroscopic pinnule 7 × 3.5 cm; veins in pinna-lobes mostly forked, concolorous; lower surface glabrous, upper surface densely short-hairy on rachises, short hairs also present near sinuses between pinna-lobes. Sori about medial between costules of pinna-lobes and margin, terminal on acroscopic branch veinlets; indusia dark, very firm, to 1.5 mm wide, with irregular small papillae on the upper surface.
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