Vermeulen, J.J. “A PROVISIONAL CHECKLIST OF THE CONTINENTAL AFRICAN TAXA OF THE GENUS BULBOPHYLLUM THOUARS (ORCHIDACEAE)”. Selbyana 7, no. 1 (August 1, 1982): 10–19. Accessed November 16, 2024. https://journals.flvc.org/selbyana/article/view/120645.