Lai, B.-D., Wang, B.-M., & Wen, F. (2016).

Primulina cordistigma, a new species of Gesneriaceae from Guangdong, China and supplementary and emendated description of floral morphology of P. yangchunensis

. Phytotaxa, 244(3), 283–288. https://doi.org/10.11646/phytotaxa.244.3.4