Athyriaceae

Scales of the rhizome and axes non-clathrate. Indusia mostly single except for a few double indusia occurring on each primary pinna especially on the basal acroscopic veins Athyriaceae

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Ridges of the grooves on the upper surface of the rhachis and costae open at the junctions with the pinnae and pinnules. Multiseptate hairs absent on the upper surface of the lamina Diplazium

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Ridges of the grooves on the upper surface of the rhachis and costae not open at the junctions with the pinnae and pinnules. Multiseptate hairs present on the upper surface of the lamina Deparia