Rhizome 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. Worldwide: c. 35 species occurring in SE USA and Mexico, Africa, Madagascar and India |
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