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|Noun||1.||genus Pyrrosia - epiphytic or lithophytic or terrestrial ferns of tropical Old World|
fern genus - genera of ferns and fern allies
family Polypodiaceae, 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)