Xiong, Chi, Fu-Zhang Sun, Yu-Xin Yang, and Lei Wu. 2025. “Spiradiclis Spiradiclis hechiensis (Rubiaceae), a New Cave-Dwelling Species from Northwest Guangxi, China”. Phytotaxa 689 (2). Auckland, New Zealand:262-68. https://doi.org/10.11646/phytotaxa.689.2.9.