Miranda, M.D., Külkamp, J. & Oliveira, L.D.S.D.D. (2026) A newly discovered species of Actinostemon (Euphorbiaceae) critically threatened from the Coastal Atlantic Forest of São Paulo State, Brazil. Phytotaxa 773 (3): 281–288. https://doi.org/10.11646/phytotaxa.773.3.6