The indigenous species of Pteridophyta known to occur in Ceylon number 314. In addition, 18 naturalized species occur as weeds of cultivation or as introduced aliens. Fifty-seven species are endemic to Ceylon and 28 non-endemic species are absent from India. Lists of these and other phytogeographical groupings are given. The full list of species is followed by comments on the taxonomy or nomenclature of 76 taxa. Four new combinations are made: Asplcnium pobodon var. bipinnatwn (Sledge) Sledge; Deparia polyrhizon (Baker) Sledge; Polystichwn harpophyllum (Zenker ex Kunze) Sledge, and Bolbitis appendiculata var. asplenlfolia (Bory) Sledge. Athyriwn puncticaulc (Blume) T . Moore and A . lanceum (Kunze) T. Moore replace A . anisopterum Christ and A . macrocarpum (Blume) Beddome, respectively.