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Polyalthiopsis xui Y.H. Tan & Bin Yang, sp. nov. (A) Flowering branch; (B) Close-up of leaf petiole, showing the transverse striations on dried petiole; (C) Flower; (D) Sepals; (E) Outer petal; (F) Inner petal; (G) Side view of inner petal; (H) Stamens; (I) Carpel; (J) Fruit; (K) Longitudinal sections of monocarps of different shapes; (L) Seeds. Drawing: Yifan Li.
