Polypodiaceae - ferns: a large family that in some classification systems has been subdivided into several families (including Aspleniaceae and Blechnaceae and Davalliaceae and Dennstaedtiaceae and Dryopteridaceae and Oleandraceae and Pteridaceae)Drynaria, genus Drynaria - large robust epiphytic ferns of tropical forest and scrub; Africa and Asia and Australia Ceterach, genus Ceterach - small genus of Old World ferns; superseded in some classification systems which place plants of this genus in e.g. genera Asplenium and Pleurosorus |