For Pittosporaceae
Carolin, R.C., and V. Bittrich. 2018. Pittosporaceae. In Kadereit, J., & V. Bittrich. 2018. The families and genera of flowering plants. XV. Flowering plants. Eudicots. Apiales, Gentianales (except Rubiaceae). Springer, Cham. Google Scholar
Judd, W.S. 1996. The Pittosporaceae in the southeastern United States. Harvard Papers in Botany 8: 15-26. Google Scholar
Whittemore & McClintock. In prep. In FNA. Google Scholar