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Farinaccio, M.A. and de Mello-Silva, R. 2013. Oxypetalum lividum, a new species of Asclepiadoideae (Apocynaceae) from Peru. Phytotaxa. 77, 1 (Jan. 2013), 1–4. DOI:https://doi.org/10.11646/phytotaxa.77.1.1.