MONTANUCCI, R. R. .; KLESZEWSKI, K.-P. . Taxonomic history, comparative morphology, and variation in Astrophytum myriostigma and its subspecies tulense (Cactaceae). Journal of the Botanical Research Institute of Texas, [S. l.], v. 15, n. 2, p. 327–341, 2021. DOI: 10.17348/jbrit.v15.i2.1152. Disponível em: https://journals.brit.org/jbrit/article/view/1152. Acesso em: 3 mar. 2024.