Neotropical biogeographic regionalization and mapped hybrid zones/sympatric regions from 67 studies. Different symbols indicate one or a group of biological families, as indicated in the map legend, according to the mapped geographical points in Supporting Information 1. Black dots indicate as ‘All other families’ in the figure legend encompass Acanthaceae, Arecaceae, Begoniaceae, Boraginaceae, Calophyllaceae, Caricaceae, Cyperaceae, Euriocauleaceae, Fagaceae, Lecythidaceae, Loranthaceae, Melastomataceae, Moraceae, Myrtaceae, Nothofageaceae and Podostemaceae. Sometimes, in the same work, more than one geographical point was indicated as a hybrid zone/sympatric region, and all of them were plotted on the map. The arrows indicate places where there is dating information and the colours are the same as Supporting Information 1.