public boolean containsAny(Collection<Taxon> taxa){
  for (  Taxon taxon : taxa) {
    if (taxa.contains(taxon)) {
      return true;
    }
  }
  return false;
}

public boolean containsAny ( Collection < Taxon > taxa ) { for ( Taxon taxon : taxa ) { if ( taxa . contains ( taxon ) ) { return true ; } } return false ; }
returns true if at least 1 member of taxonlist is contained in this taxa .
