This dataset contains the digitized treatments in Plazi based on the original journal article He, Wen-Qi, Zheng, Wei-Lie, Zhao, Fang-Yu, Yin, Kai-Xin, Li, Lian-Qiang, Zhao, Kai-Hui, Zhang, Fang-yuan, Liao, Zhi-hua, Lan, Xiao-Zhong (2026): Hydrangea medogensis (Hydrangeaceae), a new species from Xizang (Tibet), China. PhytoKeys 279: 51-68, DOI: 10.3897/phytokeys.279.203326
Abstract
Based on field surveys, examination of herbarium specimens, and molecular phylogenetic analyses, the present study described a new species, Hydrangea medogensis sp. nov. (Hydrangeaceae), from Medog County, Xizang Autonomous Region, China. Phylogenetic analyses indicated that H. medogensis was placed in Clade 1 as a distinct lineage, sister to the remainder of the clade. Morphologically, the new species is most similar to H. stylosa but can be distinguished by the following key characteristics: fertile flowers with a globose calyx tube constricted at the mouth; calyx teeth triangular, occasionally oblong-ovate, 0.6–1 mm long; adaxial leaf surface covered with two types of soft hairs (long and short); ovary more than 4 / 5 inferior, nearly completely inferior; and seeds with a very narrow wing around the margin. The taxonomic status of the new species was established based on integrated morphological and molecular evidence.
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