dct_add_row             Add row(s) to a taxonomic database
dct_check_mapping       Check mapping of usage taxonomic IDs
dct_check_sci_name      Check scientificName
dct_check_tax_status    Check that taxonomicStatus is within valid
                        values in Darwin Core taxonomic data
dct_check_taxon_id      Check taxonID
dct_drop_row            Drop row(s) of a taxonomic database
dct_fill_col            Fill a column of a taxonomic database
dct_filmies             Taxonomic data of filmy ferns
dct_modify_row          Modify row(s) of a taxonomic database
dct_options             Get and set function arguments via options
dct_terms               Darwin Core Taxon terms
dct_validate            Validate a taxonomic database
