References

Zhu, X.-X., X.Q. Li, S. Liao, Y. Wang, Z.H. Wang, J. Yan, Y.-J. Zuo, and J.S. Ma. 2019. Reinstatement of Isotrema, a new generic delimitation of Aristolochia subgen. Siphisia (Aristolochiaceae). Phytotaxa 401: 1-23.