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Marattiaceae

Marsileaceae

Ophioglossaceae

Adiantaceae, Aspidiaceae, Aspleniaceae, Athyriaceae, Blechnaceae, Cheiropleuriaceae, Cyatheaceae, Davalliaceae, Dennstaedtiaceae, Dicksoniaceae

Salviniopsida

Azollaceae, Salviniaceae

American Fern Society

http://amerfernsoc.org/

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.

British Fern Species

http://midwales.com/westhill/mydbfern/

Searchable database.

Ferns Around Washington, DC

http://members.aol.com/palmferndc/ferns/

A collection of images and information on ferns growing in the DC area.

Ferns et al of New England and Bermuda

http://theworld.com/~donlubin/

Lists all native pteridophyte species and some hybrids, with photographs of most and data pages for some.

Ferns of Barbados

http://scitec.uwichill.edu.bb/bcs/staff/lec/ferns.htm

Checklist plus distribution data and links for each species.

Ferns of Fern Forest and South Florida

http://fig.cox.miami.edu/~scofield/sofl_plants/fern_index.html

Photographs and descriptions of the ferns of southern Florida.

Ferns of Great Britain and Ireland

http://rare-prints.com/ferns_main.htm

Small images of 39 antique prints by Thomas Moore, 1855.

Ferns of the Canberra Region

http://www.home.aone.net.au/byzantium/ferns/

A site about ferns in southeastern Australia, their ecology, how to grow them, information on ferns in general, with numerous photographs.

Filicopsida

http://tolweb.org/tree?group=Filicopsida&contgroup=Embryophytes

Introduction to ferns from the Tree of Life project.

Gallery of Connecticut Ferns

http://www.ct-botanical-society.org/ferns/

Photos and brief information indexed by common and scientific names.

Introduction to the Ferns

http://www.ucmp.berkeley.edu/plants/pterophyta/pteridopsida.html

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.

Leptosporangiate Ferns

http://tolweb.org/tree?group=Leptosporangiate_Ferns&contgroup=Filicopsida

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.

Phylogeny and evolution of ferns (Monilophytes)

http://www.pryerlab.net/publication/fichier494.pdf

Scientific paper from American Journal of Botany 2004 showing that Psilotophyta and Equisetophya are in the Monilophyte clade with the other ferns.

Phylum Pterophyta

http://www.science.siu.edu/landplants/Pterophyta/pterophyta.html

Includes a description of the fern life cycle, list of families and genera, and links to images of selected representatives.

Pterophyta

http://botit.botany.wisc.edu/courses/systematics/Phyla/Pterophyta/Pterophyta.html

Introduction to the systematics of the ferns, with family descriptions and images.

Pterophyta Taxa

http://www.science.siu.edu/landplants/Pterophyta/pterophyta.taxa.html

List of all families and genera, with numbers of species and ranges.

Recent pteridophyte name changes

http://www.anbg.gov.au/projects/fern/name_changes.html

Refers to Australian taxa and mainly changes effected in the 1990s.