Science, Biology, Flora and Fauna, Plantae, Polypodiophyta

Top: Science: Biology: Flora_and_Fauna: Plantae: Polypodiophyta:

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- 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.
- 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.
- A site about ferns in southeastern Australia, their ecology, how to grow them, information on ferns in general, with numerous photographs.
- Small images of 39 antique prints by Thomas Moore, 1855.
- 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.
- Includes a description of the fern life cycle, list of families and genera, and links to images of selected representatives.
- List of all families and genera, with numbers of species and ranges.
- Searchable database.
- Lists all native pteridophyte species and some hybrids, with photographs of most and data pages for some.
- Introduction to the systematics of the ferns, with family descriptions and images.
- Scientific paper from American Journal of Botany 2004 showing that Psilotophyta and Equisetophya are in the Monilophyte clade with the other ferns.
- Introduction to ferns from the Tree of Life project.
- Photos and brief information indexed by common and scientific names.
- A collection of images and information on ferns growing in the DC area.
- Checklist plus distribution data and links for each species.
- Refers to Australian taxa and mainly changes effected in the 1990s.
- Photographs and descriptions of the ferns of southern Florida.

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