Newtonia is a genus of flowering plants in the legume family, Fabaceae. It includes 16 species of trees native to sub-Saharan Africa. It belongs to subfamily Caesalpinioideae and the Mimosoid clade or tribe. The genus is known from the early Miocene (21.73 Ma) of Ethiopia based on compressions of its diagnostic, winged seeds.
16 extant species are accepted.ILDIS (2005) Newtonia aubrevillei (Pellegr.) Keay Newtonia buchananii (Baker) G.C.C.Gilbert & Boutique Newtonia camerunensis Newtonia devredii Newtonia duncanthomasii Newtonia duparquetiana (Baill.) Keay Newtonia elliotii (Harms) Keay Newtonia erlangeri Newtonia glandulifera (Pellegr.) G.C.C.Gilbert & Boutique Newtonia grandifolia Villiers Newtonia griffoniana (Baill.) Baker f. Newtonia hildebrandtii (Vatke) Torre Newtonia leucocarpa (Harms) G.C.C.Gilbert & Boutique †Newtonia mushensis - extinct Newtonia paucijuga Newtonia scandens Newtonia zenkeri Harms
References
Further reading International Legume Database and Information Service (2005): Genus Newtonia. Version 10.01, November 2005. Retrieved 2008-MAR-31.