R. C. dos S. Yoshikawa, V. Angyalossy, e P. Soffiatti, “Stem and root antomy of Melocactus bahiensis and M. concinnus (Cactaceae, Subfamily Cactoidae Tribe Cereeae)”, Rev. Biol. Neotrop., vol. 1, nº 1-2, p. 11–22, jan. 2018.