A new classification system and taxonomic synopsis for Malpighiaceae (Malpighiales, Rosids) based on molecular phylogenetics, morphology, palynology, and chemistry Author de Almeida, Rafael F. 0000-0002-9562-9287 Universidade Estadual de Goiás, Campus Sudoeste, Quirinópolis, Goiás, Brazil & Royal Botanical Gardens, Kew, Richmond, UK Author de Morais, Isa L. 0000-0001-8748-9723 Universidade Estadual de Goiás, Campus Sudoeste, Quirinópolis, Goiás, Brazil Author Alves-Silva, Thais https://orcid.org/0009-0001-0760-6019 Universidade Estadual de Goiás, Campus Sudoeste, Quirinópolis, Goiás, Brazil Author Antonio-Domingues, Higor 0000-0001-9405-1930 Royal Botanical Gardens, Kew, Richmond, UK Author Pellegrini, Marco O. O. 0000-0002-8783-1362 Royal Botanical Gardens, Kew, Richmond, UK text PhytoKeys 2024 2024-05-22 242 69 138 journal article 10.3897/phytokeys.242.117469 1.2. Byrsonimeae W . R . Anderson, Leandra 7: 11. 1977 . ≡ Byrsoniminae Nied. in Engler, Nat. Pflanzenr. 92: 17, 28. 1928. Type genus. Byrsonima Rich. ex Kunth. Diagnosis. Stipules epipetiolar, leaves smaller than inflorescences, at least one petal cucullate at anthesis, presence of hydroxy acids and derivatives, imidolactams, keto acids and derivatives, organic phosphoric acids and derivatives, organofluorides, absence of oxanes. Notes. Byrsonimeae currently comprises only three accepted genera ( Blepharandra , Byrsonima , and Diacidia ) and 181 species (57 threatened species; Suppl. material 1 ) of trees, shrubs or subshrubs endemic to the Americas ( POWO 2024 ).