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菊科千里光族,中国云南西北部一新物种。

 (Asteraceae, Senecioneae), a new species from northwestern Yunnan, China.

作者信息

Chi Xiao-Rui, Wu Hai-Song, Wang Long

机构信息

Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, Guangdong, China South China Botanical Garden, Chinese Academy of Sciences Guangzhou China.

University of Chinese Academy of Sciences, Beijing 100049, China University of Chinese Academy of Sciences Beijing China.

出版信息

PhytoKeys. 2024 Feb 7;238:75-83. doi: 10.3897/phytokeys.238.117340. eCollection 2024.

Abstract

, a new species from northwestern Yunnan, China, is described and illustrated. It was tentatively placed in L.sect.Ligulariaser.Ligularia on the basis of the pinnate-palmate leaf venation, racemose synflorescence and pappus which is as long as tubular corolla. Within the series, it appeared somewhat close to both and . However, can be easily distinguished from the latter two species by, among other characters, the leaf margin, bract size, involucre shape and size, and number and width of ray florets. Morphologically, is also superficially similar to but differs readily by having distally shortly yellowish and brownish puberulent stems, palmately-pinnately veined leaves regularly dentate at margin, scarious, brown and larger bracts, and larger ray laminae. In addition, a distribution map and a diagnostic key to Chinese species of L.ser.Ligularia are also provided.

摘要

描述并图示了来自中国云南西北部的一个新物种。基于羽状掌状叶脉、总状聚伞花序以及与管状花冠等长的冠毛,它被暂时置于舌叶系舌叶属。在该系内,它似乎与[物种1]和[物种2]都有些相近。然而,[新物种]与后两个物种很容易区分,除其他特征外,还可通过叶缘、苞片大小、总苞形状和大小以及舌状花的数量和宽度来区分。在形态上,[新物种]与[物种3]也表面相似,但很容易通过以下特征区分:茎上部具短的淡黄色和褐色微柔毛,掌状羽状脉叶边缘有规则的齿,膜质、褐色且较大的苞片,以及较大的舌状花裂片。此外,还提供了舌叶系中国物种的分布图和检索表。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eb8c/10867831/71b7bb6ff56e/phytokeys-238-075_article-117340__-g001.jpg

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