Yang, Y., Chen, L. & Peng, H. (2018)

Clarification of the taxonomic confusion between Ilex formosana and I. tetramera (Aquifoliaceae), with the description of a new species I. shukunii

. Phytotaxa 382 (2): 182–192. https://doi.org/10.11646/phytotaxa.382.2.3