Ribeiro-Silva, S., et al. “A POPULATION OF LYCHNOPHORA ERICOIDES MART. (ARNICA) (ASTERACEAE) IS PRONE TO EXTINCTION IN A SAVANNA OF CENTRAL BRAZIL”. Edinburgh Journal of Botany, vol. 74, no. 3, July 2017, pp. 281-97, https://doi.org/10.1017/S0960428617000221.