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Taxonomy and systematics of Ephedrites cheniae and Alloephedra xingxuei (Ephedraceae)

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New specimens of Liaoxia cheniae (≡ Ephedrites cheniae) have been collected from the Jianshangou Bed (Liaoning, China). A reinvestigation indicates that this species belongs to Ephedra. A new combination is therefore proposed. The branching pattern of living plants and exsiccatae of Ephedra were compared with those of Alloephedra xingxuei. The results suggest that Alloephedra xingxuei be transferred to Ephedra, as E. xingxuei comb. nov.
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Keywords: ALLOEPHEDRA; EARLY CRETACEOUS; EPHEDRA; EPHEDRACEAE; EPHEDRITES

Document Type: Research Article

Affiliations: 1: Department of Paleontology, University of Vienna, 1090 Vienna, Austria 2: National Museum of Natural History, Smithsonian Institution, Washington, D.C., 20013-7012, U.S.A. 3: State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; Beijing Museum of Natural History, Beijing 100050, China 4: State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China

Publication date: 2008-05-01

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