Taxonomy[edit]
Family Pospiviroidae
Genus Pospiviroid; type species: Potato spindle tuber viroid ; 356–361 nucleotides(nt) [9]
Genus Pospiviroid; type species: Citrus exocortis ; 368–467 nt [9]
Genus Hostuviroid; type species: Hop stunt viroid ; 294–303 nt [9]
Genus Cocadviroid; type species: Coconut cadang-cadang viroid; 246–247 nt[9]
Genus Apscaviroid; type species: Apple scar skin viroid ; 329–334 nt [9]
Genus Coleviroid; type species: Coleus blumei viroid 1 ; 248–251 nt [9]