The first publication of the species must be effective according to the definition of the International Code of Botanical Nomenclature (Code)(Article 29-31).
2.1.2.
The first publication of the species has to be valid according to the definition of the International Botanical Nomenclature Code (Article 32- 45).
All other questionable cases that may occur should be solved according to VOSS (1972, 1983) and GREUTER et HIEPKO (1989).
The data on the first finding of a species on the territory of Croatia must be published in a scientific journal. The floristic data published in popular magazines shall undergo preliminary examination by the editor.
2.2.2.
A sample according to which a new finding is described should be available (located in a registered herbarium according to HOLMGREN et al. 1990).