app/models/nomenclatural_rank/icn/species_and_infraspecies_group/subform.rb
class NomenclaturalRank::Icn::SpeciesAndInfraspeciesGroup::Subform < NomenclaturalRank::Icn::SpeciesAndInfraspeciesGroup
def self.parent_rank
NomenclaturalRank::Icn::SpeciesAndInfraspeciesGroup::Form
end
def self.valid_parents
[NomenclaturalRank::Icn::SpeciesAndInfraspeciesGroup::Form.to_s]
end
def self.abbreviation
'subf.'
end
end