Leaf morphology of 29 Chinese and one Thailand species of the Selaginellaceae and its taxonomic significance
SUN Zhi-Ying, ZHANG Xian-Chun, CUI Shao-Mei, ZHOU Feng-Qin
J Syst Evol . 2006, (2): 148 -160 .  DOI: 10.1360/aps040110