{"title":"The first report of <i>Haplomitriumgibbsiae</i> (Steph.) R.M. Schust. (Haplomitriaceae) from Guangxi, China.","authors":"Wei Han, Haifeng Luo, Yuqing Li, Nanqiang Li, Fei Tan, Xiangju Huang, Qiang He","doi":"10.3897/BDJ.13.e155213","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>The liverwort genus <i>Haplomitrium</i>, first described by Nees in 1833, is the basal sister group to all other liverworts. It exhibits distinctive traits, including upright shoots, radial leaf arrangement, abundant mucilage and the absence of rhizoids, reflecting its non-vascular nature. Predominantly found in the Southern Hemisphere, specifically Australasia, the genus comprises seven species and two infraspecific taxon globally, with China recording three species - <i>H.blumei</i>, <i>H.mnioides</i> and <i>H.hookeri</i>. These features and its distribution underscore its significance in studying early terrestrial flora.</p><p><strong>New information: </strong>The liverwort species <i>Haplomitriumgibbsiae</i> (Steph.) R.M. Schust., previously considered endemic to Gondwanan regions, has been documented in East Asia for the first time during a floristic survey in the Jiuwanshan National Nature Reserve, Guangxi Zhuang Autonomous Region, China. This discovery expands the known range of the species and, when combined with prior hypotheses, suggests a potential dispersal pathway: following the fragmentation of Gondwana, <i>H.gibbsiae</i> may have spread to India and South America and subsequently from India to East Asia via the Himalayas, resulting in its present-day global distribution. Additionally, based on extensive literature review, the present study discusses the species' retention of primitive traits and considers its potential as a candidate for future research, aimed at deepening our understanding of early land plant evolution.</p>","PeriodicalId":55994,"journal":{"name":"Biodiversity Data Journal","volume":"13 ","pages":"e155213"},"PeriodicalIF":1.0000,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12179648/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biodiversity Data Journal","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.3897/BDJ.13.e155213","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"BIODIVERSITY CONSERVATION","Score":null,"Total":0}
引用次数: 0
Abstract
Background: The liverwort genus Haplomitrium, first described by Nees in 1833, is the basal sister group to all other liverworts. It exhibits distinctive traits, including upright shoots, radial leaf arrangement, abundant mucilage and the absence of rhizoids, reflecting its non-vascular nature. Predominantly found in the Southern Hemisphere, specifically Australasia, the genus comprises seven species and two infraspecific taxon globally, with China recording three species - H.blumei, H.mnioides and H.hookeri. These features and its distribution underscore its significance in studying early terrestrial flora.
New information: The liverwort species Haplomitriumgibbsiae (Steph.) R.M. Schust., previously considered endemic to Gondwanan regions, has been documented in East Asia for the first time during a floristic survey in the Jiuwanshan National Nature Reserve, Guangxi Zhuang Autonomous Region, China. This discovery expands the known range of the species and, when combined with prior hypotheses, suggests a potential dispersal pathway: following the fragmentation of Gondwana, H.gibbsiae may have spread to India and South America and subsequently from India to East Asia via the Himalayas, resulting in its present-day global distribution. Additionally, based on extensive literature review, the present study discusses the species' retention of primitive traits and considers its potential as a candidate for future research, aimed at deepening our understanding of early land plant evolution.
Biodiversity Data JournalAgricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics
CiteScore
2.20
自引率
7.70%
发文量
283
审稿时长
6 weeks
期刊介绍:
Biodiversity Data Journal (BDJ) is a community peer-reviewed, open-access, comprehensive online platform, designed to accelerate publishing, dissemination and sharing of biodiversity-related data of any kind. All structural elements of the articles – text, morphological descriptions, occurrences, data tables, etc. – will be treated and stored as DATA, in accordance with the Data Publishing Policies and Guidelines of Pensoft Publishers.
The journal will publish papers in biodiversity science containing taxonomic, floristic/faunistic, morphological, genomic, phylogenetic, ecological or environmental data on any taxon of any geological age from any part of the world with no lower or upper limit to manuscript size.