 Insularity can also foster diversity in the "campos rupestres;" given its discontinuous distribution across several mountain ranges overcoming long-distance dispersal can pose a challenge to many lineages.Coupled with antiquity, the diversity of habitats found within the "campos rupestres" leads to many lineages being adapted to specific environmental conditions.As a consequence, the number of endemic and rare species is very elevated; around 30% of the flora is restricted to this ecoregion.