Introduction to the Ferns The ferns are an ancient lineage of plants, dating back to at least the Devonian. They include three living groups - Marattiales, Ophioglossales, and leptosporangiate ferns - as well as a couple of extinct groups.
Filicopsida Introduction to ferns from the Tree of Life project.
Leptosporangiate Ferns Next to the flowering plants, the leptosporangiate ferns are the most diverse group of living land plants. Estimates place their diversity at about 12,000 species in around 300 genera. This page is part of the tree of life phylogeny project.
Pterophyta Introduction to the systematics of the ferns, with family descriptions and images.
Phylum Pterophyta Includes a description of the fern life cycle, list of families and genera, and links to images of selected representatives.
Pterophyta Taxa List of all families and genera, with numbers of species and ranges.
Ferns of the Canberra Region A site about ferns in southeastern Australia, their ecology, how to grow them, information on ferns in general, with numerous photographs.
American Fern Society Information on the biology and cultivation of ferns; activities of the society including a spore exchange and publication of Fiddlehead Forum, American Fern Journal, and Pteridologia.
Ferns of Barbados Checklist plus distribution data and links for each species.
Phylogeny and evolution of ferns (Monilophytes) Scientific paper from American Journal of Botany 2004 showing that Psilotophyta and Equisetophya are in the Monilophyte clade with the other ferns.
Fern Siam Images, taxonomic information, online forum, and other resources about ferns in Thailand. Mostly in Thai language, with some English.
