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Rhizome wide-creeping, densely scaly; scales lanceolate, long-acuminate, rufo-brown, nitid, thick, entire; frond 2-4 cm apart, stipe 30-50 cm long, 3 mm thick near base, green or pale straminous, smooth, glabrous above base, rounded beneath, lower part flattened with sharp edge above and upper part deeply grooved, lamina ovate, bifurcate at the tip of stipe into two similar pinnae of oblong outline, 30-40 cm long, 13-16 cm broad, acuminate, axillary bud large, densely scaly, scales ovate, entire, with long subulate apices; pinnules linear-lanceolate, acuminate, short-petiolate, the lower ones on the exterior side of rachilet much the longest, to 12 cm long, 2 cm broad, gradually shortened up

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