Plant species with extremely small populations (PSESP) in China: A seed and spore biology perspective
Ellie Merrett Wade, Jayanthi Nadarajan, Xiangyun Yang, Daniel Ballesteros, Weibang Sun, Hugh W. Pritchard
Plant Diversity . 2016, (05): 209 -220 .  DOI: 10.1016/j.pld.2016.09.002