Zhao, B., Hong, X., Huang, S.-L. and Wen, F. 2013. <i>Primulina crassirhizoma</i> sp. nov. (Gesneriaceae) from a limestone area along the boundary of Sino-Vietnam. Bangladesh Journal of Plant Taxonomy. 20, 2 (Dec. 2013), 129–134. DOI:https://doi.org/10.3329/bjpt.v20i2.17387.