CASTRO, Antonio Alberto Jorge Farias. Mata atlântica no Piauí: isto é ou não é uma "fake news"? Publ. avulsas conserv. ecossistemas , Teresina, n. 34, p. 1-18, jun./2020. (Série: Texto para Discussão). ISSN 1809-0109.
Due to the latest discussions on "social media" and in the news about the meaning, limits and contents of "fake news", in Brazil as well in all world about a lot of issues, such as health, economics and policy, etc. We enjoy the opportunity to bring up the controversial and still unnecessary question about the existence of the Atlantic Forest in the state of Piauí. Considering that there only have two biomes with representation in all its territory: Cerrado and Caatinga, also that the collections of botanical material collected since the 1970s in some fragments of forests, do not support the hypothesis of the presence of the domain floristic of the "Atlantic Forest" and/or some floristic province of the Brazilian "Atlantic Forest". Instead, these studies have been showing the absence of exclusive species and/or endemic species directly associated from this type of vegetation. Besides, when species from the Brazilian Atlantic Forest appear in Piauí, they also occur in the Cerrado, in the Caatinga, in the Amazon, simultaneously, in at least two of these types of vegetation.