BioStor
 | Studies in the genus Coccoloba, IX. A critique of the South American species [prim.] R A Howard (1960) Journal of the Arnold Arboretum 41: 213-258 |
 | Studies in the genus Coccoloba, X. New species and a summary of distribution in South America R A Howard (1961) Journal of the Arnold Arboretum 42: 87-95 |