1. Berg, C. C. 1977a. Urticales, their differentiation and systematic position. Pl. Syst. Evol., Suppl. 1: 349–374.
2. Berg, C. C. 1977b. Abscission of anthers in Cecropia. Acta Bot. Neerl. 26: 417–419
3. Berg, C.C. 1978. Cecropiaceae, a new family of the Urticales. Taxon 27: 39–44.
4. Corner, E.J.H. 1962. The classification of Moraceae. Gard. Bull. 19: 187–252.
5. Engler, A. 1889. Moraceae. In: Engler, A., Prantl, K. (Eds.) Die natürlichen Pflanzenfamilien III, 1. pp. 66–98. Leipzig: Engelmann.