Relational model of information contained in objects of class taxlist. Each box is a column-oriented table including the name of the table (slot name in R) and the names of the mandatory columns. Lines indicate relationships between and within tables, while key symbols show the key fields in the respective tables. Dots suggest the possibility to extend the tables with custom columns. Single entries in table taxonRelations represent a taxon, while table taxonNames includes taxon usage names (accepted names and synonyms). Attributes of taxa (e.g. functional traits) are stored in table taxonTraits and table taxonViews includes sources determining the circumscription of a taxon, its accepted name and synonyms.