菊科千里光族，中国四川西部一新物种。
(Asteraceae, Senecioneae), a new species from western Sichuan, China.
作者信息
Qu Tianmeng, Zheng Xinyi, Chen Xinyu, Zhang Yanru, Zhang Tonglin, Li Bo, Huang Ke, Fu Zhixi
机构信息
Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Sichuan Normal University, Ministry of Education, Chengdu 610066, China.
College of Life Sciences, Sichuan Normal University, Chengdu 610101, China.
出版信息
PhytoKeys. 2025 Sep 4;262:129-144. doi: 10.3897/phytokeys.262.161687. eCollection 2025.
K.Huang & Z.X.Fu (Asteraceae) is described as a new species from Tianquan County, western Sichuan, China. It resembles and in its scapigerous habit and palmately veined ovate to ovate-cordate radical leaves, but differs in several stable traits. Its leaves are subcoriaceous with whitish blotches adaxially and a purplish red abaxial surface, whereas has submembranous blades that are pale green on the abaxial surface, while has smaller membranous leaves. produces 3-10 (vs. 2-9 in and mostly solitary in ) capitula, ca. 8 (vs. 10-12 and 8-17) ray florets, and lacks a pappus (vs. absent or rarely with short hairs). Phylogenetic analyses based on chloroplast genomes and ITS sequences place within the -tussilaginoid assemblage corresponding to the Tussilagininae subtribe, clustering with and .
黄科和傅泽新（菊科）被描述为来自中国四川西部天全县的一个新物种。它在具花葶的习性以及掌状脉的卵形至卵形心形基生叶方面与[其他两种植物]相似，但在几个稳定特征上有所不同。它的叶子近革质，正面有白色斑点，背面紫红色，而[第一种对比植物]的叶片近膜质，背面浅绿色，[第二种对比植物]的叶子膜质较小。[新物种]产生3 - 10个头状花序（[第一种对比植物]为2 - 9个，[第二种对比植物]大多单个），约8个舌状花（[第一种对比植物]为10 - 12个，[第二种对比植物]为8 - 17个），并且没有冠毛（[第一种对比植物]无或很少有短毛）。基于叶绿体基因组和ITS序列的系统发育分析将[新物种]置于与款冬亚族相对应的款冬类群中，与[两种对比植物]聚在一起。
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