| Abstrakt: |
Under the present provisions of Articles 19, 22, and 26 of the International Code of Botanical Nomenclature, various taxa between the ranks of family and genus and genus and species and below the rank of species can have two equally correct names without any change whatever in circumscription, position, or rank. This circumstance, which is in direct contradiction to Principle IV and Article 11 of the Code, has come about through too broad extension of the tautonymic principle whereby the names of various taxa which include the nomenclatural type of the next higher taxon must be based either on the same stem as that name or must repeat the name or epithet of the next higher taxon unaltered. This principle works excellently for the names of taxa which include the nomenclatural types of families, genera, and species, respectively, but when extended to all taxa between the ranks of family and genus, to all subgenera and sections, and to all subspecific categories, it results in the possibility for two correct names for some taxa (without change in circumscription, position, or rank), depending solely upon whether or not the next higher rank is used in the taxonomic classification. Since the Code clearly specifies that a taxon can have only one correct name in a given circumscription, position, and rank, proposals are made to restrict the tautonymic principle to the taxa which include the nomenclatural types of families, genera, and species, thereby eliminating this conflict within the Code. |
Plný text