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DescriptionTerrestrial or lithophytic ferns. Rhizome creeping; rhizome-scales brown, ovate-lanceolate, grading into hairs. Stipe not articulated. Fronds tufted or spaced, herbaceous, glabrous, pinnate; pinnae symmetrical or midrib forming the lower margin for some distance; veins free or less often, anastomosing. Sori marginal or submarginal, linear or oblong. Indusium opening outwards towards the margin.