Pirie, Michael D. 2018. “Cremastosperma (and other evolutionary digressions): Molecular phylogenetic, biogeographic, and taxonomic studies in Neotropical Annonaceae”. Revista de Biologia Neotropical / Journal of Neotropical Biology 2 (2): 149-50. https://teste.revistas.ufg.br/RBN/article/view/8564.