Cabral, Elsa L., and Nélida M. Bacigalupo. “TAXONOMIC DEVELOPMENTS IN GALIANTHE AND BORRERIA (RUBIACEAE-SPERMACOCEAE)”. Bonplandia 10, no. 1-4 (January 1, 2000): 119–128. Accessed November 13, 2026. https://revistas.unne.edu.ar/index.php/bon/article/view/1455.