The book deals with the species of Turneraceae occurring in a Cerrado fragment in the municipality of Caxias/Maranhao. It presents a species list, identification key and description of the seven species of Turneraceae occurring in the region, geographical distribution, common name, material examined and the main morphological aspects for identifying the species. As this is a botanical family of great economic and environmental importance, and as this study provides new information on this plant group, it is considered that this work will serve all those interested in the knowledge, utilisation and conservation of the biodiversity of Brazil's Cerrado areas. We therefore recommend that you read and use the information contained in this book dedicated to one of the important botanical families of the Brazilian flora.