Pteridologie
Pteridologie
Hortus Botanicus Leiden [nl] Pteridology Lab / Ronnie Viane University of Ghent, Gent [be] Kathleen M. Pryer’s Lab / Duke University, Durham, North Carolina [us] Leptosporangiate Ferns Kathleen M. Pryer and Alan R. Smith [us] Phyto Images Southern Illinois University Carbondale, Illinois [us] Ecology & Evolutionary Biology / EEB University of Connecticut, Storrs [us] Pteridología en el Instituto de Ecología, A.C, Xalapa, Veracruz [mx] Ferns of the Canberra Region. Ferns and Lycophytes of the World.