Rhizome erect or ascending, c. 4 mm in diameter, set with dark brown, lanceolate, acuminate, entire rhizome-scales up to 2.5 x 0.5 mm. Fronds tufted, pinnate, dimorphous, fertile fronds gemmiferous, 1/4 to 2 times as long as sterile non-gemmiferous fronds; stipe matt grey-green, sparsely scaly; fertile lamina lanceolate, up to 240 x 75 mm; sterile lamina somewhat ovate, up to 130 x 90 mm; pinnae in up to 9 pairs, oblong lower pinnae grading upwards into smaller obovate-obtuse ones, base unequally cuneate, lower pinnae not decrescent or sometimes auriculate acroscopically, margin serrate, upper surface glabrous, lower surface set with fimbriate to substellate scales. Sori up to 30 per pinna, c. 9 mm long near pinna-base; indusium membranous, somewhat erose, c. 0.5 mm broad, folding back on itself at maturity.
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