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Geographical patterns of species richness and phylogenetic diversity (PD) for (A, D) total species, (B, E) herbaceous plants (C, F) woody plants, and (G) the phylogenetic structure (NRI) of total species on the Qinghai-Tibetan Plateau. Left column for species richness, and the right column for phylogenetic diversity (PD) and phylogenetic structure (NRI).
