 According to the Melbourne Code, the subfamilial name Ixoroideae should be replaced by Dialypetalanthoideae.However, "Dialypetalanthus" is morphologically quite aberrant in Rubiaceae and if it should be excluded from Rubiaceae, the subfamilial name remains Ixoroideae.Molecular studies also have substantial impact on tribal delimitations and taxonomic changes are still being made.