Phenotypic characteristics of the mutants used to validate the map. Phenotypes of compacta (a), formosa (b), compacta ähnlich (c) and nana (d), Pictures show wild type on the left and mutant on the right. The mutant heroina (e) above and wild type below. Stems of hero correspond to same internode in siblings. The mutant Nitida (f) wild type left, mutant right.