There was one illustrations found for epithet braunius,-a,-um
 
141966 653355 Melanoxylon brauna Schott C.F.P. von Martius, A.G. Eichler, I. Urban, Fl. Bras., vol. 15(2): fasicle 50, (Leguminosae II et III, Swartzieae, Caesalpinieae, Mimoseae): t. 17 (1870)