Serra Dourada State Park is one of the most preserved montane areas in the state of Goiás, but the flora is poorly known. As part of a survey of Euphorbiaceae diversity in Cerrado, a taxonomic study of the genus Croton was carried out in this park. We recognized 10 species: Croton antisyphiliticus, C. campestris, C. chaetocalyx, C. didrichsenii, C. glandulosus, C. gracilescens, C. heliotropiifolius, C. sclerocalyx, C. urucurana and Croton sp. The last species is probably a new taxon, while C. gracilescens and C. sclerocalyx are illustrated for the first time. A species key, descriptions, illustrations, as well as phenological and geographic distribution data are provided.
Crotoneae; diversity; flora of the Cerrado; taxonomy
