Rhizome 3-8 mm thick, internodes to 3-5.5 cm long; vascular strands with bundle sheath fully sclerified, rarely to 2 cells thick; sclerenchyma strands absent. Rhizome scales peltate, spreading, 6-8.5 mm long, 2-3 mm wide, apex rounded to acute, straw-coloured to brown, evenly coloured, remotely and weakly dentate, sometimes with a flabelloid margin. Fronds simple, monomorphic. Stipe 3.5-18 cm long; lamina 10-29 by 3.8-8.9 cm, index 2.2-4.8, widest at 0.2-0.4 from base. Venation: main veins on upper surface raised, distinct. Hydathodes frequent, calcareous scales not persistent. Margin cartilaginous, flat (to c. 1 mm wide, translucent, fragile); notches only near apex, regularly present. Sori: round, or (sometimes) confluent within one areole, in two or more rows between adjacent veins (usually not in regular rows), in 5 or more rows between costa and margin, to 2 mm wide, slightly sunken with a slightly raised ridge around the receptacle.
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