Polypodium pellucidum - Close up image of underside of leaf showing sori. Polypodium vulgare - Photograph showing this species growing in its natural habitat in Italy. Polypodium - Species list from Manual de Flora de Costa Rica with hypertext links to specimen data. Polypodium vulgare - Several photographs of Polypody and its identifying features. Polypodium decumanum: Samambaia - Description and several photographs of this fern, with information on its herbal properties, uses in traditional medicine, the chemicals it contains, its biological activities, clinical research and its current uses. Polypodium leucotomos: Calaguala - Several photographs of this species which grows in tropical rainforests. Polypodium triseriale Sw. - Taxonomic data and mapped distribution from Atlas of Florida Vascular Plants.