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