Rhizome short-creeping to long-creeping, branched, stipes 1– 8 mm apart in each row; scales lanceolate to narrowly lanceolate, dark brown to blackish, glabrous, clathrate, cells in centre of scales 1– 2×longer than wide. Stipes 2– 7 mm long, with whitish to pale red-brown simple eglandular hairs (0.2– 1 mm long). Lamina narrowly oblanceolate, 18– 29 mm long, 3– 5 mm wide, obtuse at apex, long-attenuate at base, sometimes glabrous, usually with whitish simple eglandular hairs 0.4– 1 mm long on abaxial surface of lamina in soral area; lateral veins simple, each vein-ending marked by a round to slightly elongate hydathode on adaxial surface of lamina, free. Sori in apical 1/5 to 1/2 of lamina, 1– 8 in each row. Fig. 1/5– 1/6.