苦苣苔科植物Lysionotus bijantiae的名实订正  

Lysionotus bijantiae is identified as a new synonym of Henckelia oblongifolia(Gesneriaceae)

作　　者：蔡磊[1] BORAH Dipankar 刀志灵[1] 温放[2,4] CAI Lei;BORAH Dipankar;DAO Zhiling;WEN Fang(Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations/Key Laboratory for Plant Diversity and Biogeography of East Asia,Kunming Institute of Botany,Chinese Academy of Sciences,Kunming 650201,China;Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain,Guangxi Institute of Botany,Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences,Guilin 541006,Guangxi,China;Department of Botany,Rajiv Gandhi University,791112,India;Gesneriad Conservation Centre of China(GCCC),Guilin Botanical Garden,Chinese Academy of Sciences,Guilin 541006,Guangxi,China)

机构地区：[1]中国科学院昆明植物研究所云南省极小种群野生植物综合保护重点实验室/东亚植物多样性与生物地理学重点实验室,中国昆明650201 [2]广西壮族自治区中国科学院广西植物研究所,中国广西桂林541006 [3]拉吉夫甘地大学植物学系,印度791112 [4]中国科学院桂林植物园,中国苦苣苔科植物保育中心,中国广西桂林541006

出　　处：《广西植物》2020年第10期1402-1408,共7页Guihaia

基　　金：国家科技基础资源调查专项项目(2017FY100100);第二次青藏高原综合科学考察研究项目(2019QZKK0502);中国科学院重点部署项目(KFJ-3W-No1);第21批广西“十百千”人才工程第二层次人选支持项目;广西植物研究所基本业务费项目(桂植业20009)。

摘　　要：通过查阅相关文献和标本,作者发现近期发表的苦苣苔科吊石苣苔属植物一新种——Lysionotus bijantiae D. Borah&A. Joe实为鉴定错误,应是汉克苣苔属的长圆叶汉克苣苔\[Henckelia oblongifolia (Roxb.)D. J. Middleton&Mich. M?ller\]\[原长圆叶唇柱苣苔Chirita oblongifolia (Roxb.) Sinclair\]。Lysionotus bijantiae的模式标本采集于中国西藏东南部地区的喜马拉雅南坡,该地区苦苣苔植物多样性较为丰富。作者因其花具2枚发育雄蕊而将其归于吊石苣苔属,花萼分裂不达基部而与吊石苣苔属其他相关种类比较,而忽略了其种子先端不具附属物的特征。通过电镜扫描观察到,该种在墨脱境内居群以及其模式产地居群的种子均无附属物,从而证实了该种不是吊石苣苔属的物种,而是属于汉克苣苔属。因此,作者将Lysionotus bijantiae处理为Henckelia oblongifolia的新异名,同时提供了长圆叶汉克苣苔的彩色图片(含种子扫描图)、选定模式标本,并给出了吊石苣苔属和汉克苣苔属的区分方法和主要识别特征,不仅为这两个属的物种鉴定提供了参考,而且避免更多的物种分类混淆问题出现。A recently described new species of Gesneriaceae,Lysionotus bijantiae D. Borah & A. Joe,was misidentified;it is conspecific with Henckelia oblongifolia( Roxb.) D. J. Middleton & Mich. M9 ller. We treat Lysionotus bijantiae as a new synonym for Henckelia oblongifolia \[previous Chirita oblongifolia( Roxb.) Sinclair \] by examining relevant specimens and literature. The type specimens of Lysionotus bijantiae were collected from the southern slope of the Himalayas in Southeast Xizang,China. The diversity of Gesneriaceae in this area is also abundant. The authors attributed it to the genus Lysionotus because of its flower with two stamens,and compared it with other Lysionotus species because of its calyx 5-lobed above the middle,but they ignored the fact that the seed apex had no appendages. We observed that the seeds of this species in the populations of Motuo and the type localities both had no appendages by scanning the seeds with electron microscope,it is confirmed that this species is not a species of Lysionotus,but a species of Henckelia. At the same time,we offer the color images( including seeds scanned images) and the lectotype of Henckelia oblongifolia,and also describe the characteristics and distinguishing methods of the two genera Henckelia Spreng. and Lysionotus D. Don,in order to provide a reference for species identification of the two genera and avoid more confusion of species classification.

关 键 词：苦苣苔科 吊石苣苔属 汉克苣苔属 新异名 

分 类 号：Q949[生物学—植物学]