Fern - Wikipedia, the free encyclopedia
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A fern is any one of a group of about 20,000 species of plants classified in the phylum or division Pteridophyta , also known as Filicophyta . The group is also referred to as Polypodiophyta ,...
en.wikipedia.org/wiki/Fern
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A website about the wild ferns that grow in this part of southeastern Australia, the conditions they need and their ecology, with many photographs and detailed descriptions. ... Links to more ferns...
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www.home.aone.net.au/byzantium/ferns/
www.home.aone.net.au/byzantium/ferns/
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What are ferns? ... Why do ferns grow in some places and not others, and why do some species thrive where others don't? ... Ferns are a very ancient family of plants: early fern fossils predate the beginning of the Mesozoic era, 360 million years ago. They are older than land animals and far older than the dinosaurs.
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www.home.aone.net.au/byzantium/ferns/about.html
www.home.aone.net.au/byzantium/ferns/about.html
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Ferns represent the second major step in the evolutionary sophistication of plants. While they still reproduce by spores like mosses, the ferns add a vascular system -- i.e. specialized organs for trasporting fluids throughout the plant.
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www.perspective.com/nature/plantae/ferns.html
www.perspective.com/nature/plantae/ferns.html
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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. ... An additional group, the Psilotales, is tentatively included in the ferns, though the group is so...
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www.ucmp.berkeley.edu/plants/pterophyta/pteridopsida.ht...
www.ucmp.berkeley.edu/plants/pterophyta/pteridopsida.html
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An introduction to the life history of ferns ... About 97% of living Pteridophytes are ferns. In fact, there are probably about 12,000 species of ferns in the world, most of these found in the tropics. Unlike the fern allies which are a relic group, the ferns are highly successful and are virtually found in any...
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scitec.uwichill.edu.bb/bcs/bl14apl/pter2.htm
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Here you can find out about the BPS and its activities along with information about Ferns and other Pteridophytes ... Welcome to Fern World - the web site of the British Pteridological Society. Find out about the BPS and its activities along with information about Ferns and other Pteridophytes.
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www.nhm.ac.uk/hosted_sites/bps/
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Ferns. I have pictures and descriptions of nearly every fern I have, categorized by various characteristics. ... Cold Hardy Tree Ferns; I made this page as a source of information for those of us in USDA zones 9a or colder about how to grow tree ferns.
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www.odla.nu/garden_links/ferns.shtml
www.odla.nu/garden_links/ferns.shtml
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