Two new species of Polyalthiopsis (Annonaceae) based on morphological characters and phylogenetic evidence, with a supplementary description of P. chinensis from China
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Two new species of Polyalthiopsis (Annonaceae), P. nigra Y.H. Tan & Bin Yang from Guangxi and Yunnan Provinces and P. xui Y.H. Tan & Bin Yang from Yunnan Province, are described and illustrated. P. nigra is morphologically similar to P. chinensis in having nar... ...
