Croton (Euphorbiaceae) in the State of São Paulo, Brazil: an update

ABSTRACT An updated key for Croton species in the State of São Paulo is presented as well as new occurrences of the genus and the reestablishment of Croton thermarum Müll. Arg. For those species of Croton that were not included in previous studies in the State of São Paulo, we provided: the original publication, synonymy, global geographic distribution, vegetation type, and a representative herbarium collection. This study increases the number of the known species of Croton species in São Paulo State to 40 and contributes to the knowledge of the genus in Brazil.