van der Burgt, X.M., Ngansop Tchatchouang, E. and Tchiengué, B. 2025. Plagiosiphon intermedium (Leguminosae, Detarioideae), a new tree species from the Ngovayang forest in Cameroon. Webbia. 80, 2 (Nov. 2025), 175–181. DOI:https://doi.org/10.36253/jopt-18480.