Mapping the fern Blechnum heringeri (Blechnaceae, Polypodiopsida): recording the geographical distribution, ecological preferences and making a new record in Northeastern Brazil

These are the supplementary data for the scientific note recording the know distribution of the fern <i>Blechnum heringeri</i>. We provide here:1- The locations and geographical coordinates of all known occurrences of this species in ODS and CSV formats;2- The map of global known distribution of this species as determined by extensive consulting of herbaria by the authors and fieldwork;3- The occurrence of the species in Ceará state, associated with a cerrado vegetation enclave within the Caatinga Phytogeographical Domain (new record made by this study);<br>4- The Extent of Occurrence (EOO) and Area of Occupancy (AOO) of the species updated to take into account the new records, as calculated by the geographical tool 'Geocat' (http://geocat.kew.org/ - Bachman et al. 2011 - https://doi.org/10.3897/zookeys.150.2109)<br>