Habit, rhizome morphology. Plants forming tufts of 2 or 3 fronds. Runners 1.5-2 mm thick, branching angle divaricate. Scales on runners dense, spreading. Tubers absent. Fronds 200 cm long (or more), 16-18 cm wide, stipe 33-35 cm long. Lamina base strongly reduced, tapering over 30 cm, basal pinnae 1.2-2.5 cm long, 4-6 cm distant, middle pinnae slightly to distinctly falcate. Sterile pinnae 9.5-11 by 1.6-2 cm, leathery, base strongly unequal, basiscopic base rounded or cordate, acroscopic base cuneate or truncate, not auricled, margin in basal part entire, towards apex crenate or serrate, apex acuminate or to 1.5-2.5 cm caudate. Fertile pinnae 10-15 by 0.6-1.2 cm, different from sterile pinnae in the margin deeply incised between the sori, especially towards pinna-apex, and the apex more gradually narrowed to a 2.5-4 cm long cauda. Indument. Basal scales pseudopeltate, spreading, 5 by 2-2.5 mm, central part rufous, shining, marginal glands absent, margin not hyaline, in basal part ciliate or fimbriate, in acumen ciliate or fimbriate. Rhachis scales dense, with a well-developed protracted acumen, appressed (inconspicuous), hyaline or light brown, acumen ciliate. Scales on lamina absent. Hairs on lamina and costa absent. Sori marginal (or nearly marginal), often on dilated teeth, especially towards the pinna-apex, 20-32 pairs on fully fertile pinnae, elongated (sometimes confluent near the base of the pinna), not impressed. Indusium broad, attached at broad base.
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