Rhizome terete, 2-3 mm thick, brown; phyllopods 0.5-3 cm or more distant. Anatomy: vascular strands 7-10, without dark bundle sheaths, sclerenchyma strands very many (> 100). Rhizome scales inserted evenly, persistent, densely set, spreading, pseudopeltate, monomorphic, deltoid, 1.5-2 by 0.4-0.7 mm, index 2.5-2.9, basal auricles rounded to pointed, margin set with glands throughout, dentate, teeth gradually shorter towards the apex, apex filiform, cell walls clathrate throughout, cells relatively wide, 6-10 in a row between the margins at the base of the acumen, superficial hairs absent, rarely a tuft of hairs present near the point of attachment. Fronds pinnate, stipe 1.5-2.5 mm thick, 0.6-0.9 as long as the lamina, glabrous; lamina 12-39 by 8-20 cm, index 1.5-2, widest at or below the middle; pinnae articulate, sessile to shortly petiolate, 7-10 by 0.7-1 cm, index 6.7-10, widest in the basal 1/3, base truncate, margin deeply serrate, apex very narrowly acute to acuminate; basal pair 1.2-2.5 cm distant from next pair, sometimes shorter and deflexed, apical segment conform or sometimes distinctly lobed at the base, 2/3 as long as to slightly longer than the largest pinnae. Venation: areoles uniserial, marginal veinlets 1-3 per areole, half as long as the areole, simple, irregularly anastomosing into areoles without included veinlets. Indument: 2-celled glandular hairs present, acicular hairs absent or sparse, 2-8 cells long, scales deciduous. Sori uniserial, medial, more or less sunken, 0.8-1.1 mm diam., receptacular scaly paraphyses persistent, clathrate, 120-170 by 100-140 µm, 2 or more cells wide. Sporangia glabrous. Spores yellow, cristate, with short polar excrescences.
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