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DescriptionRhizome usually shortly creeping with linear, black or brown, scales. Stipe dark reddish-brown to black, glabrous or with hairs or scales. Fronds pinnate to 4-pinnate with pinnae or ultimate segments articulated, glabrous or pubescent to tomentose. Sori submarginal, confluent into a soral line (rarely discrete), usually covered by a continuous indusium formed from the reflexed margin; paraphyses usually 0.