NT: William Houstoun - s.n. - BM - (BC:BM000827672). Houstoun s.n.; Mexico: state unknown [Campeche?] (BM - (BC:BM000827672)) First step neotype (as "type") by Howard, J. Arnold Arbor. 40: 190 (1959). There is no known original material associated with this name. There are two sheets at BM with no annotations beyond genus, neither has indications online it was seen by Jacquin or Howard. Howard (1992) refers to the Howard (1959) as place of typification and still does not designate a specific BM sheet.

• Type discussion:  Howard, R. A. 1992. Collected notes on Coccoloba L. (Polygonaceae). Brittonia 44(3): 361.
• Neotype designated by:  Howard, R. A. 1959. Studies in the genus Coccoloba. VII. A synopsis and key to the species in Mexico and Central America. J. Arnold Arbor. 40(2): 190.

INT: William Houstoun - s.n. - BM - (BC:BM000827671). (BM - (BC:BM000827671))

NT: William Houstoun - s.n. - BM - (BC:BM000827672). (BM - (BC:BM000827672)) NT designated by J.J. Ortiz-Diaz & J.J. Ancona in Ulloa Ulloa et al. (2025)

• Second-step neotype designated by:  Ulloa Ulloa, C., H. M. Hernández, F. R. Barrie, G. Davidse & S. Knapp. 2025. Cycadaceae a Cactaceae. 2(1): in press. In C. Ulloa Ulloa, H. M. Hernández Macías, F. R. Barrie, G. Davidse & S. Knapp Fl. Mesoamer.. Missouri Botanical Garden, St. Louis.