A dataset on Gesneriaceae and its geographical distribution in China

China stands as a global epicenters for the diversity of Gesneriaceae, exemplified by its pronounced species differentiation within the southwestern territories. The Gesneriaceae taxon is characterized by its biological diversity, reproductive and nutritional organ phenotypic polymorphism, and a pan-tropical distribution pattern. These characteristics make this taxon a primary focus in research related to biogeography, evolutionary ecology, conservation biology, and more. Despite the importance of Gesneriaceae, investigations concerning its biodiversity in China have been limited to cataloging species, or some other generic analyses. This has left a gap in understanding the diversity distribution patterns of Gesneriaceae throughout China. To fill this gap, this study compiled literary and specimen data to catalogue Gesneriaceae and establish a geographic distribution database for China's known Gesneriaceae. The findings reveal that Gesneriaceae primarily inhabit the tri-junction of Yunnan, Guizhou, and Guangxi, as well as the Hengduan Mountains, southeastern Tibet, and across southern provinces. As of June 2024, the Gesneriaceae in China comprised 46 genera 880 species (including 58 varieties). Among these, Guangxi Zhuang Autonomous Region held the most (305) species, followed by Yunnan Province (299 species), and then Guizhou Province (130 species). At the county scale, Malipo County (70 species) and Pingbian Miao Autonomous County (63 species) of Yunnan province had the most Gesneriaceae diversity.

中国是苦苣苔科（Gesneriaceae）物种多样性的全球热点区域，其西南地区的物种分化尤为显著。该科类群兼具生物多样性丰富、生殖与营养器官表型多态性显著、泛热带分布的特征，使其成为生物地理学、进化生态学、保护生物学等研究领域的核心关注对象。尽管苦苣苔科具有重要研究价值，但目前针对中国境内该科生物多样性的研究仅局限于物种名录编目或部分属级分析，导致学界对中国苦苣苔科的多样性分布格局仍存在认知空白。为填补这一研究空白，本研究整合文献与标本数据，完成了中国已知苦苣苔科物种的名录编目，并构建了其地理分布数据库。研究结果显示，苦苣苔科主要栖息于滇黔桂三省交界地带、横断山区、西藏东南部以及中国南方各省区。截至2024年6月，中国境内已知苦苣苔科共有46属880种（含58个变种）。其中，广西壮族自治区物种数量最多，达305种；其次为云南省（299种），贵州省位列第三（130种）。在县域尺度上，云南省麻栗坡县（70种）与屏边苗族自治县（63种）的苦苣苔科物种多样性最为丰富。

搜集汇总

背景与挑战

背景概述

该数据集详细记录了中国苦苣苔科植物的多样性和地理分布情况，包含46属880种（含58变种）的分布数据，特别关注云南、贵州、广西等地区的物种分布。数据集旨在填补对中国苦苣苔科植物多样性分布模式的研究空白。