 They can optionally be given Linnean binomials with a multiplication sign "×" before the species epithet for example "Crataegus" × "media".An offspring of a nothospecies, either with a member of the same nothospecies or any of the parental species as the other parent, has the same nothospecific name.The nothospecific binomial is an alias for a list of the ancestral species, whether the ancestry is precisely known or not.