Pittella, Renan Silveira, et al. “New Record and Expansion of the Geographic Distribution of <i>Parodia Mueller-melchersii< I> (Frič Ex Backeb.) N. P. Taylor (Cactaceae) in the Southern Region of Rio Grande Do Sul, Brazil”. Iheringia, Série Botânica., vol. 75, junho de 2020, doi:10.21826/2446-82312020v75e2020009.