A complete, synonymic checklist of the Ferns and Lycophytes of the World
Version 15.2 (March 22nd, 2023)
Covering 13,036 accepted species,
847 hybrids, 989 accepted infraspecific taxa and 53,645 synonyms,
in total 68,517* names
[*about 1,300 dubious, "unplaced" names are omitted from the main database and listed under "Unplaced names"]
With complete, detailed distribution data (countries and regions) and literature references
Arranged in linear phylogenetic sequence reflecting true relationships
Fully searchable and continously updated
With 4,677 pictures of 1,435 taxa
Assembled through 30 years independently from other databases
