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

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

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.

Checklist plus distribution data and links for each species.

Photos and brief information indexed by common and scientific names.

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

Images, taxonomic information, online forum, and other resources about ferns in Thailand. Mostly in Thai language, with some English.