Basal scales long-attenuate, conspicuously dentate distally; lamina to 120 cm long; suprabasal pinnae to 70 cm long, their pinnules sessile, 8-13 cm long, 1.8-2.3 cm wide, lobed a little more than halfway to costa, very firm, almost glaucous beneath when living, brown-olivaceous when dried; costules 5-6(-7) mm apart; lobes distinctly falcate and minutely dentate distally, sinuses between them very narrow; sinus-teeth small, narrow and curved; veins forming costal areoles with a few additional ones below sinuses, costular areoles usually near bases of lobes only; glands present on lower surface of costules and veins; sori in a single row midway between costule and margin of a pinna-lobe, rather large, indusiate; spores with a narrow ± continuous wing and a few cross-wings.
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