Stipe to more than 70 cm long, dark castaneous, distal part narrowly winged, basal scales to more than 3 mm wide; lamina to 110 cm long, pinnati-sect throughout to a wing along the rachis, wing above lowest lobes 4 mm wide on each side, wider in distal part of frond; lobes many, closely placed, entire, to c. 30 × 6 cm (both sterile and fertile), basal ones with a large lobe on the basiscopic side; lower surface of rachis and costae minutely hairy, upper surface glabrous throughout; veins anastomosing as in T. decurrens, the main lateral veins mostly ± sinuous, smaller veins distinct but hardly prominent on dried fronds; sori in one row on each side of main veins, some on free veins in areoles; indusia reniform.
Home