[viruses]
   Family Nanoviridae
     Genus Nanovirus
       1 Black medic leaf roll virus
       2 Faba bean necrotic stunt virus
       3 Faba bean necrotic yellows virus
       4 Faba bean yellow leaf virus
       5 Milk vetch dwarf virus
       6 Pea necrotic yellow dwarf virus
       7 Pea yellow stunt virus
       8 Subterranean clover stunt virusᵀ