Template:Groeninckx et al., 2010
- Groeninckx, I., De Block, P., Robbrecht, E., Smets, E.E. & Dessein, S. 2010. Amphistemon and Thamnoldenlandia, two new genera of Rubiaceae (Spermacoceae) endemic to Madagascar. Botanical Journal of the Linnean Society 163(4): 447–472. DOI: 10.1111/j.1095-8339.2010.01060.x
