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Cerasus dielsiana (Rosaceae) is one of the most characteristic wild flowering cherry species endemic to subtropical China, with high conservation value from ornamental, economic, and ecological perspectives. To verify its spatial genetic structure and phylogeographic history, evaluation of nuclear (ITS) sequence variation in 203 individuals from 25 wild populations across its natural distribution ranges was conducted. High levels of ribotypes and nuclear diversity (Hd = 0.879 ± 0.012, π = 3.56 ± 0.16) were detected at the species level. Spatial analysis of molecular variation (SAMOVA), median-joining network and phylogenetic Neighbour-joining tree assigned the populations into four genetically distinct groups. Meanwhile, high levels of genetic differentiation among populations and strong phylogeographic patterns (Nst = 0.837 > Gst = 0.585; P C. dielsiana, and at least three potential in situ glacial refugia as well as recent demographic expansion in eastern region have been detected. Collectively, we highlight that the combined effect of natural selection and random genetic drift under complex topography and palaeoclimatic oscillations since the Last Glacial Maximum (LGM) in subtropical China might have been the main driver to the species’ allopatric differentiation. Scientific conservation and sustainable utilization for wild C. dielsiana germplasm resources were subsequently proposed.

10. Premna cordiformis Li Bing Zhang & Yi F. Duan, nom. nov. Replaced synonym:— Premna velutina C.Y. Wu (1977: 428), nom. illeg., non Premna velutina Gürke (1895: 338). Type:— CHINA. Yunnan, Longling, 1500 m, 14 Aug 1941, Wang Qiwu (C. W. Wang) 89944 (holotype, KUN). Etymology:—Latin, cordiformis, cordate-shape, referring to the cordate leaf blade of the species, one of its disgnostic characters (Chen & Gilbert 1994). Distribution:—Mixed forests; ca. 1500 m. SW Yunnan (Chen & Gilbert 1994)., Published as part of Duan, Yi-Fan & Zhang, Libing, 2014, Eight new names and lectotypification of six names in Lamianae (asterids I) for the Flora of China, pp. 278-282 in Phytotaxa 170 (4) on pages 278-282, DOI: 10.11646/phytotaxa.170.4.5, http://zenodo.org/record/5139116, {"references":["Wu, C. - Y. (ed.) (1977) Flora Yunnanica, vol. 1, Beijing: Science Press, 870 pp.","Gurke, M. (1895) Verbenaceae. Pp. 337 - 342 in: Engler, A. (eds.) Die Pflanzenwelt Ost-Afrika s, vol. 2. Berlin: D. Reimer.","Chen, S. L. & Gilbert, M. G. (1994) Verbenaceae. Pp. 1 - 49 in: Wu, Z. - Y. & Raven, P. H. (eds.) Flora of China, vol. 17. Beijing: Science Press & St. Louis: Missouri Botanical Garden Press."]}

11. Premna emarginata Li Bing Zhang & Yi F. Duan, nom. nov. Replaced synonym:— Premna laevigata C.Y. Wu (1977: 440), nom. illeg., non Premna laevigata Miquel (1856: 895). Type:— CHINA. Yunnan: Mengla, 27 Oct 1959, Tsai Hse-tao 59-11098 (lectotype KUN-484508, isolectotype KUN-484510, here designated!). Etymology:—Latin, emarginata, emarginate, referring to the emarginate lower lip of calyx of the species, one of its disgnostic characters (Chen & Gilbert 1994). Distribution:—Mixed forests; 500– 600 m. Mengla, Yunnan (Chen & Gilbert 1994). Notes:—When Premna laevigata C.Y. Wu was published, the gathering Tsai Hse-tao 59-11098 was cited in the protologue, but no specific herbarium sheet was designated as holotype. This gathering consists of at least two sheets at KUN. We here designate KUN-484508 as the lectotype., Published as part of Duan, Yi-Fan & Zhang, Libing, 2014, Eight new names and lectotypification of six names in Lamianae (asterids I) for the Flora of China, pp. 278-282 in Phytotaxa 170 (4) on pages 278-282, DOI: 10.11646/phytotaxa.170.4.5, http://zenodo.org/record/5139116, {"references":["Wu, C. - Y. (ed.) (1977) Flora Yunnanica, vol. 1, Beijing: Science Press, 870 pp.","Miquel, F. A. W. (1856) Flora van Nederlandsch Indie, vol. 2. Leipzig: Fried Fleischer, 1103 pp.","Chen, S. L. & Gilbert, M. G. (1994) Verbenaceae. Pp. 1 - 49 in: Wu, Z. - Y. & Raven, P. H. (eds.) Flora of China, vol. 17. Beijing: Science Press & St. Louis: Missouri Botanical Garden Press."]}