The distribution of Huperzia serrata (Thunb. ex Murray) Trevisan var. serrata, Dryopteris lacera (Thunb.) O. Ktze., and Ophioglossum themale Komarov in Taiwan are confirmed. Nomenclatural treatments, including two new combinations: Huperzia serrata var. longipetiolata (Spring) H. -M. Chang and Huperzia serrata var. myriophyllifolia (Hayata) H. -M. Chang, along with descriptions, taxonomic notes, and color photos are provided.