Abstract
The genus Parapiptadenia Brenan (Leguminosae-Mimosoideae: Tribe Mimoseae) is represented by four species in Brazil. The authors present the valuation of morphological descriptions, illustrations, identifications keys and geographic distributions of the species. Piptadenia rigida var grandis Lindman is synonimized and a new combination for Piptadenia zehntneri Harms is presented (Parapiptadenia zehntneri (Harms) M. P. Lima & Lima).