摘要
On account of intensive field and herbaria investigations in Taiwan, new data about the biodiversity and taxonomy of the ferns in Taiwan are proposed. Three native species, Adiantum roborowskii var. faberi (Baker) Y.X. Lin & J. Prado (Pteridaceae), Diplazium hachijoense Nakai (Athyriaceae) and Polystichum erosum Ching & K.H.Shing (Dryopteridaceae) and a naturalized species Cheilanthes viridis (Forssk.) Sw. (Pteridaceae) are recorded in Taiwan for the first time. We provide the background data of taxonomy, distribution, habitats, photographs, conservation status, and notes for each species.