Hippomaneae (Euphorbiaceae) in the Chapada dos Veadeiros National Park, Goiás, Brazil

Abstract The Euphorbiaceae of the tribe Hippomaneae are complex and poorly studied taxonomically due to having small and homogeneous flowers. Based on monthly collections since 2011, analysis of herbarium collections and specific literature was performed the taxonomic treatment to the Hippomaneae present in the Chapada dos Veadeiros National Park, an area whose flora is rich and little known. Fifteen species belonging to five genera were found: Microstachys and Sapium, the most diverse, with nine and three species respectively, followed by Gymnanthes, Maprounea and Sebastiania with one species each. Sapium haematospermum is firstly recorded in the state of Goiás. Species identification key, species descriptions with comments and illustrations, besides the transference of Sebastiania anisodonta and S. salicifolia to the genus Microstachys and a lectotipification.