Wei, Y.-G., Wen, F., Chen, W.-H., Shui, Y.-M., & Möller, M. (2010). LITOSTIGMA, A NEW GENUS FROM CHINA: A MORPHOLOGICAL LINK BETWEEN BASAL AND DERIVED DIDYMOCARPOID GESNERIACEAE. Edinburgh Journal of Botany, 67(1), 161-184. https://doi.org/10.1017/S0960428609990291