Pteridophytes: Ferns and Fern Allies Personal site with a classification scheme, bibliography, some local checklists (Ohio and Kentucky), and an article on ferns and soil conservation. http://www.frognet.net/~jaknouse/ferns.htg/ferns.html Frognet.net~Site InfoWhoisTrace RouteRBL Check
British Pteridological Society Images and information about ferns and other pteridophytes; activities of the society including publication of the Fern Gazette, Pteridologist, and Bulletin. http://www.nhm.ac.uk/hosted_sites/bps/ Nhm.ac.uk~Site InfoWhoisTrace RouteRBL Check
Checklist of World Ferns A compiled list of the ferns and fern allies of the world, with full botanical names, information about where they are found, and their classification. http://homepages.caverock.net.nz/~bj/fern/ Caverock.net.nz~Site InfoWhoisTrace RouteRBL Check