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The genus Polyalthiopsis Chaowasku (Annonaceae) was a poorly known monotypic genus from Vietnam that was recently segregated from the highly polyphyletic genus Polyalthia s.l.The sister clade relationship between Polyalthiopsis and Miliusa was not well established in previous study.The phylogenetic position of two Polyalthia spp.from China, P.chine
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