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 2.5. Bunchosieae R. F. Almeida trib. nov. = Thryallidinae Nied. in Engler & Prantl, Nat. Pflanzenfam. III, 4: 53, 67. 1890, syn. nov. Type genus: Thryallis Mart. , nom. cons. Type genus. Bunchosia Rich. ex Kunth. Diagnosis. Trees, shrubs or lianas; thyrses, cincinni 1 - flowered; pollen 4–12 - pantoporate (colporate in Echinopterys and Heladena ); styles free, rarely connate, parallel; stigma terminal, capitate; drupes or mericarps smooth or winged, presence of azolidines, benzodioxoles, organochlorides, quinolizines, absence of organic carbonic acids and derivatives, organic phosphoric acids and derivatives. Notes. Bunchosieae currently comprises five accepted genera, Bunchosia , Echinopterys , Heladena , Thryallis , and Tristellateia , and 122 species (68 threatened species; Suppl. material 1 ) of mostly American taxa, except for the Paleotropical (i. e., tropics of Africa, Asia, and Oceania) Tristellateia ( POWO 2024 ) .