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>

本数据集为记录乌毛蕨*Blechnum heringeri*分布情况的科学简报的补充数据。本次提供内容如下：
1. 以ODS与CSV格式提供该物种所有已知分布点的位置及地理坐标；
2. 作者通过广泛查阅标本馆资料并结合野外调查，绘制的该物种全球已知分布地图；
3. 本研究新发现的该物种在塞阿拉州的分布记录，该区域位于卡廷加植物地理区内的塞拉多植被飞地；
4. 结合本次新记录更新后的该物种发生范围（Extent of Occurrence, EOO）与占有面积（Area of Occupancy, AOO），该指标通过地理工具"Geocat"计算得出（来源：http://geocat.kew.org/ — Bachman等，2011 — https://doi.org/10.3897/zookeys.150.2109）