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                 Guihaia  Oct. 2020ꎬ 40(10): 1445-1449

   DOI: 10.11931/ guihaia.gxzw202004026
   陆昭岑ꎬ NGUYEN KSꎬ PHAN KLꎬ 等. 苦苣苔科凹柱苣苔属在越南的发现及水晶凹柱苣苔的补充描述 [ J]. 广西植物ꎬ 2020ꎬ
   40(10): 1445-1449.
   LU ZCꎬ NGUYEN KSꎬ PHAN KLꎬ et al. Discovery of a rare genus Litostigma (Gesneriaceae) from northern Vietnam with the supplementary
   description of L. crystallinum [J]. Guihaiaꎬ 2020ꎬ 40(10): 1445-1449.


       Discovery of a rare genus Litostigma (Gesneriaceae)

            from northern Vietnam with the supplementary

                           description of L. crystallinum


                                 1                          2ꎬ3                 4
                     LU Zhaocen ꎬ NGUYEN Khang Sinh ꎬ PHAN Ke Loc ꎬ
                                                       3              1∗
                              TRAN Thi Phuong Anh ꎬ XU Weibin

     ( 1. Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrainꎬ Guangxi Institute of Botanyꎬ Guangxi Zhuang
      Autonomous Region and Chinese Academy of Sciencesꎬ Guilin 541006ꎬ Guangxiꎬ Chinaꎻ 2. Institute of Ecology and Biological Resourcesꎬ
     Vietnam Academy of Science and Technologyꎬ Hanoi 10072ꎬ Vietnamꎻ 3. Graduate University of Science and Technologyꎬ Vietnam Academy of
      Science and Technologyꎬ Hanoi 10000ꎬ Vietnamꎻ 4. Vietnam National Universityꎬ Hanoi University of Scienceꎬ Hanoi 11416ꎬ Vietnam )


       Abstract: The Sino ̄Vietnamese limestone karsts show specially high levels of plant diversity among Indo ̄China florasꎬ
       and also are biodiversity hotspots in the worldꎬ and many new species or genera of Gesneriaceae have been found there
       recently. The genus Litostigma Y. G. Weiꎬ F. Wen & M. Möller (Gesneriaceae) was reported firstly from limestone areas
       of southwestern China in 2010ꎬ included two speciesꎬ namely Litostigma coriaceifolium Y. G. Weiꎬ F. Wen & M. Möller
       (Typus generis) from southwestern Guizhouꎬ and Litostigma crystallinum Y. M. Shui & W. H. Chen from southeastern
       Yunnan. We fortunately found Litostigma crystallinum from Ha Giangꎬ northern Vietnamꎬ and reported here to sufficient ̄
       ly know the diversity of Gesneriaceae in Vietnam. The description of Litostigma crystallinum was supplemented base on
       the collections from Ha Giangꎬ northern Vietnamꎬ and the habitat photos were also provided. The discovery of Litostigma
       crystallinum from northern Vietnam demonstrates the closely floristic relationship between northern Vietnam and southern
       China once again. The new localities are also very important for the conservation of Litostigma crystallinum.
       Key words: flora of Vietnamꎬ limestone floraꎬ Sino ̄Vietnamese limestone karsts
       CLC number: Q949    Document code: A
       Article ID: 1000 ̄3142(2020)10 ̄1445 ̄05                  Open Science Identity(OSID):










    收稿日期: 2020-04-12
    基金项目: 国家自然科学基金(31860043)ꎻ越南科学技术研究院项目(NVCC 42.04/ 20 ̄20)ꎻ中央引导地方科技发展专项资金项目(桂科
    ZY1949013) [Supported by the National Natural Science Foundation of China (31860043)ꎻ the Program of Vietnam Academy of Science and
    Technology ( NVCC 42. 04/ 20 ̄20)ꎻ Special Fund for Local Science and Technology Development Guided by the Central Committee
    (ZY1949013)]ꎮ
    作者简介: 陆昭岑(1990-)ꎬ女ꎬ广西容县人ꎬ硕士ꎬ主要从事植物分类学和民族植物学研究ꎬ(E ̄mail)zhaocenlu@ 163.comꎮ
   ∗
    通信作者: 许为斌ꎬ博士ꎬ研究员ꎬ主要从事植物分类学和生物地理学研究ꎬ(E ̄mail)gxibwbxu@ 163.comꎮ
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