Growth-habit of T. lobbii but whole plant larger; stipe to 35 cm long, its basal scales 2.5 mm wide at their bases; lamina to nearly 40 cm long; pinnae to 5 pairs, the uppermost (adnate) one with a bud at its base, the lamina-apex obliquely lobed near its base; upper pinnae to 14 × 2.5 cm, narrowly acuminate; basal pinnae to 22 cm long (stalk to 2.5 cm) bearing 2 pairs of pinnules, those on the acroscopic side entire (to 10 × 1.4 cm), the basal basiscopic one (14 cm long) irregularly lobate on its basiscopic side, the basal lobe 2.5 × 0.6 cm, almost free with an obtuse apex, apical part of pinna lobsd as frond-apex; surfaces glabrous apart from minute hairs on adaxial surface of rachis; main veins of pinnae c. 9 mm apart, at 45°, almost reaching the margin with 2 or 3 rows of areoles between them; sori small and numerous, irregularly scattered, some on free veinlets in areoles; indusia firm, reniform to almost peltate.
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