Stipe and rachis very dark, at first rather copiously minutely hairy, glabrescent; lamina to 32 cm long, shaped as in T. melanocaula but the apical part cordate at its base and basal pinnae not pinnate; basal pinnae to 20 cm long, their basal basiscopic lobes to 10 × 3 cm, lobulate less than halfway to their costae; lower surface of costae and veins bearing many slender hairs 0.5-1 mm long with shorter ones between veins; hairs on upper surface of veins short, hairs 1 mm long scattered between veins; sori similar in arrangement, size and indusia to those of T. melanocaula; spores not seen.
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