Karplanter: Forskelle mellem versioner
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Oprettede eller redigerede 1 arkivlinks ud af 7 analyserede links, se hjælp) #IABot (v2.0.8.6 |
Oprettede eller redigerede 1 arkivlinks ud af 7 analyserede links, se hjælp) #IABot (v2.0.8.6 |
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*[http://plants.usda.gov/ Welcome to the PLANTS National Database]
*[http://www.borealforest.org/ferns.htm Common Ferns And Fern-Ally Species]
*[http://www.jaknouse.athens.oh.us/ferns/classfra.html A Classification of the Ferns and Fern-Allies; uses frames] {{Webarchive|url=https://web.archive.org/web/20020906235216/http://www.jaknouse.athens.oh.us/ferns/classfra.html |date= 6. september 2002 }} Citat: "...This classification differs radically from the old traditional scheme...This is provisionally my own scheme, drawn from several different sources, although leaning heavily on the recent cladistic publication of the American Fern Society...."
*[http://homepages.caverock.net.nz/~bj/fern/ By Michael Hassler (Germany) and Brian Swale: Checklist of ferns of the World – World Ferns and Fern Allies listed] {{Webarchive|url=https://web.archive.org/web/20110806070553/http://homepages.caverock.net.nz/~bj/fern/ |date= 6. august 2011 }}
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