Rhizome scales thin, to 2 mm wide, strongly clathrate with brown cell-walls. Bathyphylls with pinnae to 25 pairs and apical lamina continuous with rachis; largest pinnae 5 by 1 cm, acroscopic base broadly cuneate to subcordate, basiscopic narrowly rounded, edges quite entire or slightly sinuate, apex acuminate, falcate, texture firm, veins hardly visible on upper surface, slightly prominent beneath. Sterile acrophylls: stipe to 20 cm, frond to 100 cm long, middle pinnae largest, lowest gradually reduced and more widely spaced; largest pinnae 12.5 by 1½ cm, acroscopic base broadly cuneate to truncate and sometimes slightly auricled, basiscopic narrowly rounded; texture of old fronds very firm, veins hardly visible on upper surface, somewhat prominent below but rather broad; edges entire, often inrolled when dried, apex acuminate, falcate. Fertile fronds: pinnae sessile, to at least 18 cm long, 1-2 mm wide.
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