苦苣苔科吊石苣苔属一新异名  

A new synonym of Lysionotus D.Don(Gesneriaceae)

作　　者：陆昭岑 韩孟奇 许为斌[1] LU Zhaocen;HAN Mengqi;XU Weibin(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;State Key Laboratory of Systematic and Evolutionary Botany,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China)

机构地区：[1]广西喀斯特植物保育与恢复生态学重点实验室,广西壮族自治区中国科学院广西植物研究所,广西桂林541006 [2]系统与进化国家重点实验室,中国科学院植物研究所,北京100093

出　　处：《广西植物》2023年第5期827-832,共6页Guihaia

基　　金：国家自然科学基金(31860043)。

摘　　要：2017年,印度学者Joe等基于采自中国藏东南地区的植物标本,发表了合萼吊石苣苔的一新变种Lysionotus gamosepalus W.T.Wang var.biflorus A.Joe,Hareesh&M.Sabu,并且认为该新变种与原变种的主要区分特征包括叶缘稍具锯齿、每个腋生花序仅有2朵花、花冠被毛、具2枚卷曲的退化雄蕊。然而,近年来,笔者基于查阅大量标本和野外考察工作,认为所谓变种的形态特征是在合萼吊石苣苔(Lysionotus gamosepalus W.T.Wang)的变异范围之内,加之分布区完全重叠,生长环境类似,物候期一致,不宜作为变种等级处理。故在此将该变种处理为合萼吊石苣苔的异名。Joe et al.published Lysionotus gamosepalus W.T.Wang var.biflorus A.Joe,Hareesh&M.Sabu in 2017 based on the specimens collected from South Tibet,China,and thought the new variety differed from L.gamosepalus in having leaves with sub-serrate margin,only two flowers from per axil inflorescence,a hairy corolla and two coiled staminodes.However,based on the examination of herbarium specimens and field investigations,we believe that the morphological characteristics of this variety are within the variation range of L.gamosepalus W.T.Wang,the distributions are sympatric,the habitat and phenology are also same.In conclusion,morphological comparisons indicate that the variety is conspecific with L.gamosepalus,we therefore reduce L.gamosepalus var.biflorus as the synonym of L.gamosepalus here.

关 键 词：苦苣苔科 合萼吊石苣苔 新异名 分类学 形态特征 

分 类 号：Q949[生物学—植物学]