Barberá, Patricia, et al. “A New Species of Paranecepsia (Euphorbiaceae-Acalyphoideae) from Madagascar and Its Relationships Among the ‘alchorneoids clade’”. European Journal of Taxonomy, vol. 834, no. 1, Aug. 2022, pp. 22–37, doi:10.5852/ejt.2022.834.1895.