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Parathelypteris
See list of 2 species in this genusReference: Smith (1993).
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1a. Leaf blades elliptic, gradually reduced in width through the basal half of the blade, lacking red to orange resin glands; indument of rachis, costae, and costules composed of hairs up to 1 mm long
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1b. Leaf blades lanceolate to broad-lanceolate, only somewhat reduced in the basal portion, with numerous, red to orange resin glands; indument of rachis, costae, and costules of hairs 0.2–0.4 mm long
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