#NEXUS BEGIN TAXA; Dimensions NTax = 4; TaxLabels 'Pachycephala simplex' 'Pachycephala grisola' 'Pachycephala pectoralis' 'Pachycephala melanura' ; END; BEGIN TREES; Tree tree1 = ('Pachycephala simplex','Pachycephala grisola',('Pachycephala pectoralis','Pachycephala melanura')); END;