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    • Data from: Phylogeny of Salix subgenus Salix s.l. (Salicaceae): delimitation biogeography and reticulate evolution 

      Wu, Jie (Chinese Academy of Sciences); Nyman, Tommi (University of Eastern Finland); Wang, Dong-Chao (Chinese Academy of Sciences); Argus, George W. (Canadian Museum of Nature); Yang, Yong-Ping (Chinese Academy of Sciences); Chen, Jia-Hui (Chinese Academy of Sciences) (2015)
      Background The taxonomy and systematics of Salix subgenus Salix s.l. is difficult. The reliability and evolutionary implications of two important morphological characters (number of stamens, and morphology of bud scales) ...