Rhizome 4-8 mm thick, internodes to 1-2.5 cm long; vascular strands with bundle sheath fully sclerified, 1-2 cells thick; sclerenchyma strands few, inconspicuous. Rhizome scales pseudopeltate or peltate, spreading, 6.5-11 by 2-2.2 mm, acute or contracted to a narrow acumen, shiny brown, evenly coloured, short-dentate to strongly dentate, more strongly dentate towards apex. Fronds pinnate, internally dimorphic. Fertile fronds: stipe 13.5-21 cm long; lamina 23-32 cm long (or longer). Pinnae 10-11 pairs, close, inserted more or less transversely to the rachis, sometimes overlapping; largest fertile pinna is 2-4, blade 13-15 by 1.1-1.5 cm, narrowed at base, widest at 6-8 cm, with a cusp to 1 cm long. Narrow scales often persistent on costa and veins. Venation: rachis and costae on upper surface grooved, main veins on upper surface distinct, not raised or raised, connecting veins also distinct; veinlets free and anastomosing, free veinlets excurrent and recurrent. Hydathodes frequent, calcareous scales not persistent. Margin cartilaginous, thickened; notches regularly present. Sori round, single between adjacent veins, in one row between costa and margin, at 2.5 mm from costa, 3 mm wide, superficial to deeply sunken.
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