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Neurodium
http://www.mobot.org/manual.plantas/055607/G055980.html
Species list from Manual de Flora de Costa Rica with hyperlinks to specimen data.
Neurodium lanceolatum (L.) Fee
http://scitec.uwichill.edu.bb/bcs/staff/lec/Fern_species/neurodium_lanceolatum.htm
Distribution and other data from the Ferns of Barbados.
Nevrodium lanceolatum (L.) Fée
http://www.plantatlas.usf.edu/main.asp?plantID=2726
Taxonomic data and mapped distribution from Atlas of Florida Vascular Plants.