Xie Zhi, Peng Na-Na, Zhang Miao, Ding Guo-En, Wen Fang, Kong Hang-Hui
Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China Botanical Garden Chinese Academy of Sciences Guangzhou China.
South China National Botanical Garden Guangzhou China.
Ecol Evol. 2024 Oct 24;14(10):e70442. doi: 10.1002/ece3.70442. eCollection 2024 Oct.
A peltate-leaved new species, Z. Xie & H. H. Kong, endemic to the Dry-Hot Valley of the Jinsha River Basin, Yunnan, China, is described and illustrated here. It is similar to (Craib) Pellegr. and Baill. in floral characters but differs in its peltate leaf blades, which are unique in the genus (and only occur in one population of Oliv., but its flowers are smaller, campanulate, and deep purple). Molecular phylogenetic analysis based on transcriptome data confirmed its systematic position to be sister group with , , Pellegr., and Baill. (LPP = 1), and well apart from the remaining members of the genus. The new species is assessed as "Critically Endangered" following the IUCN categories and criteria, due to its small and single population, thus making it face serious threats from human disturbance, invasive plants, shrinking habitat, and decreasing habitat quality.
本文描述并图示了一种盾形叶新物种，即谢泽（Z. Xie）和孔宏华（H. H. Kong）发现的新物种，它是中国云南金沙江流域干热河谷特有的物种。它在花的特征上与（Craib）Pellegr.和Baill.相似，但叶片为盾形，这在该属中是独特的（仅出现在Oliv.的一个种群中，但其花较小，呈钟形，深紫色）。基于转录组数据的分子系统发育分析证实，其系统发育位置是与、、Pellegr.和Baill.的姐妹群（LPP = 1），且与该属的其他成员有明显区别。根据世界自然保护联盟（IUCN）的分类和标准，该新物种被评估为“极危”，因为其种群数量少且单一，因此面临着来自人类干扰、入侵植物、栖息地萎缩和栖息地质量下降的严重威胁。
