Nineteen species and eight genera (Dennstaedtia, Histiopteris, Hypolepis, Microlepia, Monachosorutn, Orthiopteris, Paesia, Pteridium) of Dennstaedtiaceae, 15 species and three genera (Antropltyum, Monogramma, Vittaria) of Vittariaceae, and 35 species and six genera (Ctenitis, Cyclopeltis, Heterogonium, Pleocnemia. Pteridrys, Tectaria) of Dryopteridaceae subfamily Tectarioideae are recorded from Seram and Ambon Islands, Moluccas, based on collections made by our expeditions to the islands. New taxa, Histiopteris incisa var. seramensis, Antrophyum lancifolium. Ctenitis calcicola, C. clathrata, C. coriacea, Tectaria crenata var. petiolata, T. melanocauloides, and T. seramensis, are described.
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