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Terrestrial or epiphytc ferns rarely epiphytic of different sizes. Rhizome erect or ascending, sometimes creeping, scales present basally attached, more often non-clathrate, superficially glabrous, entire or dentate, teeth usually consisting of appendages of two adjacent cells, glands may be present on or beside the teeth. Stipe close, less often remote. Fronds simply pinnate to decompound, or rarely simple, glabrous, hairy to scaly. Lamina often oblong, triangular, or ovate type. Veins free, forked or variously anastomosing, usually reaching the margin. Sporangia approximately orbicular stalked, 2 or 3 seriate, indusia reniform, attached to the lamina by its middle deep sinus Spores monolete.