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Empogona kirkii subsp. junodii (Schinz) Tosh & Robbr.
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Taylor, C. M. 2010-2025. Studies in Tropical Rubiaceae.
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Tosh, J., A. P. Davis, S. Dessein, P. De Block, S. Huysmans, M. F. Fay, E. Smets & E. Robbrecht. 2009. Phylogeny of Tricalysia (Rubiaceae) and its relationships with allied genera based on plastid DNA data: Resurrection of the genus Empogona. Ann. Missouri Bot. Gard. 96(1): 194–213.
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