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By: Zhou, Shao-Li - Xu, Bo - Zhang, Liang - He, Zhao-Rong - Zhou, Xin-MaoType: ArticleIn: PhytoKeysVolume: 227Series:Issue:Date: 2023Page Range: 135--149Publication Info: Sofia, Bulgaria Pensoft Publishers [2010]-Subjects: Mêdog S. subg. Heterostachys Selaginella vaginata submonomorphic sporophylls