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Polypodium
http://www.mobot.org/manual.plantas/055607/G056194.html
Species list from Manual de Flora de Costa Rica with hypertext links to specimen data.
Polypodium
http://botany.com/polypodium.html
Description and culture information.
Polypodium
http://biodidac.bio.uottawa.ca/Thumbnails/PTER001B-GIF.htm
Life cycle of a common fern.
Polypodium glycyrrhiza
http://gardenbed.com/p/5846.cfm
Cultivation notes for the Licorice fern from GardenBed.com, Australia.
Polypodium interjectum
http://www.univ-lehavre.fr/cybernat/pages/polyinte.htm
Image from France.
Polypodium lineare
http://gardenbed.com/p/5847.cfm
Cultivation notes from GardenBed.com, Australia.
Polypodium pellucidum
http://www.botany.hawaii.edu/faculty/carr/images/pol_pel.jpg
Close up image of underside of leaf showing sori.
Polypodium scouleri
http://www.rainyside.com/Natives/NativePlants/Polypodium_scouleri.html
Illustrated information.
Polypodium triseriale Sw.
http://www.plantatlas.usf.edu/main.asp?plantID=4030
Taxonomic data and mapped distribution from Atlas of Florida Vascular Plants.
Polypodium virginianum
http://www.mta.ca/~rthompso/nativeflora/ferns/Page7.html
A scan of herbarium specimen one of the pictures of the ferns of the New Brunswick-Nova Scotia border region.
Polypodium vulgare
http://www.sees.bangor.ac.uk/~ian/pdbase/PRCA.360.html
Spore images.
Polypodium vulgare
http://www.dipbot.unict.it/orto/1131-1.html
Habit image from Italy.
Polypodium vulgare
http://gardenbed.com/p/5061.cfm
Cultivation notes for polypody from GardenBed.com, Australia.
Polypodium vulgare L.
http://cosmos.kee.hu/sbk/hun/keptar/seta/l/h_0027.htm
Image of édesgyökerû páfrány from Hungary.