广西壮族自治区(104°28′-112°04′ E、20°54′-26°23′ N)位于中国华南地区西部, 陆地面积236,300 km2, 东侧与广东接壤, 北侧与湖南、贵州为邻, 西侧与云南相接, 南濒北部湾、面向东南亚, 西南侧与越南毗邻。处于中国西南-中南半岛生物多样性中心, 地形地貌复杂。广西位于中国西南喀斯特核心区, 是我国喀斯特分布面积最集中、最广泛的省区。全区石灰岩山地(岩石主要成分为碳酸盐类)面积89,500 km2, 占广西土地面积的37.80% (王世杰等, 2015)。该区域拥有最为普遍和复杂多样的喀斯特地貌类型, 是世界上最具特色的地貌景观之一。复杂的生态环境和特殊的地理条件使其成为许多古老植物的避难所, 也局限地分布着丰富的地区特有植物, 在许多洞穴中还保存了奇特而又罕见的洞穴生命类群。
植物特有性是指局限分布于某一地区或某种特殊生态环境的植物类群单元的相对数量。这些植物类群单元即特有植物指分布区仅限于某一地区或某种特殊生态环境的植物类群。特有植物的形成与长期的演化适应和地理分异有关, 是区域重要的特征表现, 也是反映生物多样性的重要指标(曹晓杰等, 2022)。古热带植物区的北部湾地区和泛北极植物区的滇黔桂地区、华南地区的中心或重要部分在广西境内自然交汇, 构成了相当复杂的植物区系。广西植物区系古老、成分复杂、植物多样性与特有性均极其丰富(韦毅刚, 2008; 丁莉等, 2010; 林建勇等, 2015), 植物物种多样性仅次于云南和四川, 居全国第3位(刘端等, 2022), 但因喀斯特等特殊生境区域生态相当脆弱, 植物受威胁程度往往较高, 珍稀濒危植物众多, 植物多样性保护工作亟需深入开展。
据考证(毛宗铮, 1997), 涉及广西维管植物的名录(不含仅专科专属专类以及地区性植物名录)最早的为汪振儒1934年所编《广西种子植物名录》, 后经修订于1940-1942年陆续刊载于《广西农业》, 共刊录种子植物73科408种。惜因日寇入侵及战祸影响未能继续发表。1970-1973年, 广西植物研究所李树刚等编著的《广西植物名录》(铅印本, 共3册)共收载维管植物280科1,571属5,590种(含种下等级), 记述了种的中文名、别名、拉丁学名及其异名、产地、经济用途, 并附中文名、别名及科和属的拉丁名索引。2010年, 覃海宁和刘演主编出版了《广西植物名录》, 收录本土植物297科1,820属8,562种(含种下等级)。每一种包括中文名、拉丁学名、主要异名、广西产地(县级), 标注了广西特有植物880种。2018年, 韦毅刚主编出版了《广西本土植物及其濒危状况》, 收录本土植物272科1,805属8,892种(其中包括421种分类存疑、经查未见采自广西的可靠标本或暂时无法确认是否为广西本土植物的种类), 每一个种除了包括中文名、拉丁学名、主要异名、广西产地(县级)之外, 还包括了IUCN红色名录濒危等级评估这一重要内容, 这也是国内首次以省级为单位全面评估广西全部植物物种的濒危状况; 该书完整地标注了广西喀斯特专性植物的具体种类(韦毅刚, 2018)。本文在此基础上, 通过进一步的文献收集、标本考证、数据分析, 并结合作者的野外调查结果, 按照最新分类系统对其进行了修订, 形成了最新的广西野生维管植物名录。
1 材料与方法
1.1 数据来源
本版名录数据主要来自作者2023年即将出版的《广西植物物种编目及红色名录》, 主要参考资料包括《中国生物物种名录(2022版)》(The Biodiversity Committee of Chinese Academy of Sciences, 2022)、《中国植物志》(中国植物志编委会, 1959-2004)、Flora of China (Wu et al, 1994-2013)、《广西本土植物及其濒危状况》(韦毅刚, 2018)、《广西植物名录》(覃海宁和刘演, 2010)、《广西植物志》(广西植物志编委会, 1991-2017)。同时还参考了近年来公开发表的广西新分类群(例如, Li et al, 2019; Ge et al, 2020; Xin et al, 2021; Yang ZM et al, 2022)和广西分布新记录(例如, 张若鹏等, 2018; 陈海玲等, 2021; 黄雪奎等, 2021; 李雄等, 2023)等文献资料。本名录根据相关资料、标本记录和野外考察数据对2022年12月31日以前出现在所有有关中文和英文书籍、正式合格发表的文献中分布于广西境内的植物种类进行了仔细甄别。本名录仅对分类上有科学依据和名实来源、在广西境内自然分布且原生证据充分的物种进行收录, 不包括入侵种、归化种、逸生种等非原生类群。
1.2 数据处理
石松类和蕨类植物采用PPG I系统(PPG I, 2016), 裸子植物采用最新的杨氏裸子植物分类系统(Yang Y et al, 2022), 被子植物则按最新的APG IV系统(APG IV, 2016)。另外, 在不违反单系性原则的前提下, 还结合最新的研究成果对部分科(如三叉蕨科等)的范围和排序处理进行了适当调整(Liu et al, 2013; Zhou et al, 2018)。名录中科内属种学名按照字母顺序排列, 以方便查询。分类学处理、中文名、拉丁名及命名人主要参考《中国生物物种名录(2022版)》(The Biodiversity Committee of Chinese Academy of Sciences, 2022)及多识植物百科(
2 结果
2.1 广西野生维管植物类群组成
本名录收录广西野生维管植物共计8,739个类群(含8,221种57亚种460变种1变型, 某类群若仅有种下等级, 则其按种统计), 隶属于262科1,793属(附录1)。其中, 石松类和蕨类植物共有36科118属699种3亚种13变种1变型, 裸子植物7科21属60种5变种, 被子植物219科1,654属7,462种54亚种442变种。
2.1.1 科的组成
石松类和蕨类植物中, 物种数在40种以上的科共有6个, 分别为鳞毛蕨科(130种2变种)、凤尾蕨科(83种1亚种5变种)、水龙骨科(85种1变种)、蹄盖蕨科(71种1变种1变型)、金星蕨科(61种1变种)和铁角蕨科(44种1亚种), 共计487个类群, 占广西石松类和蕨类植物总数的68.02%。
裸子植物中, 各科的物种数分别为松科18种5变种、苏铁科9种、三尖杉科8种、罗汉松科7种、买麻藤科7种、柏科6种、红豆杉科5种。
被子植物中, 物种数排名前20位的科依次为兰科(466种1变种)、豆科(358种8亚种23变种)、禾本科(330种2亚种24变种)、茜草科(295种7亚种8变种)、苦苣苔科(285种16变种)、菊科(231种2亚种17变种)、唇形科(211种29变种)、荨麻科(214种4亚种20变种)、樟科(213种15变种)、蔷薇科(184种28变种)、莎草科(184种28变种)、夹竹桃科(178种3变种)、天门冬科(160种1亚种2变种)、壳斗科(149种5变种)、杜鹃花科(123种5亚种13变种)、报春花科(126种1亚种7变种)、爵床科(124种2变种)、卫矛科(105种2变种)、锦葵科(99种6变种)和山茶科(81种24变种), 共计4,399个类群, 约占广西被子植物总数的55.28%。
2.1.2 属的组成
石松类和蕨类植物中, 种数超过10种的属共20个, 依次为鳞毛蕨属(Dryopteris, 41种2变种)、耳蕨属(Polystichum, 41种)、凤尾蕨属(Pteris, 36种1亚种4变种)、双盖蕨属(Diplazium, 39种1变种1变型)、铁角蕨属(Asplenium, 37种1亚种)、卷柏属(Selaginella, 36种)、三叉蕨属(Tectaria, 22种)、瓦韦属(Lepisorus, 21种)、复叶耳蕨属(Arachniodes, 17种)、鳞盖蕨属(Microlepia, 15种2变种)、蹄盖蕨属(Athyrium, 16种)、毛蕨属(Cyclosorus, 15种)、修蕨属(Selliguea, 12种)、马尾杉属(Phlegmariurus, 11种)、铁线蕨属(Adiantum, 11种)、对囊蕨属(Deparia, 11种)、贯众属(Cyrtomium, 11种)、薄唇蕨属(Leptochilus, 11种)、莲座蕨属(Angiopteris, 10种)和石韦属(Pyrrosia, 10种), 共计435个类群, 占广西石松类和蕨类植物总数的60.75%。
裸子植物种类相对较少, 种数超过5种的属共有5个, 依次是松属(Pinus, 8种2变种)、苏铁属(Cycas, 9种)、三尖杉属(Cephalotaxus, 8种)、油杉属(Keteleeria, 4种3变种)和买麻藤属(Gnetum, 7种), 共计41个类群, 占广西裸子植物总数的63.08%。
被子植物中种数排名前20位的属依次为报春苣苔属(Primulina, 127种7变种)、楼梯草属(Elatostema, 104种8变种)、冬青属(Ilex, 87种10变种)、秋海棠属(Begonia, 90种1亚种4变种)、杜鹃属(Rhododendron, 68种5亚种6变种)、蜘蛛抱蛋属(Aspidistra, 75种1亚种1变种)、悬钩子属(Rubus, 62种13变种)、山茶属(Camellia, 55种19变种)、薹草属(Carex, 71种1变种)、榕属(Ficus, 60种10变种)、柯属(Lithocarpus, 56种3变种)、栎属(Quercus, 56种1变种)、凤仙花属(Impatiens, 53种2变种)、润楠属(Machilus, 46种1变种)、冷水花属(Pilea, 40种4亚种3变种)、珍珠菜属(Lysimachia, 41种5变种)、菝葜属(Smilax, 45种)、铁线莲属(Clematis, 39种5变种)、紫金牛属(Ardisia, 42种1亚种1变种)和马蓝属(Strobilanthes, 43种)。
2.2 广西野生维管植物中的省级特有种
根据新的分类系统, 广西已知的科中不存在地区特有科, 即无广西特有科; 广西特有属有4属, 即: 头序冷水花属(Metapilea)、异裂菊属(Heteroplexis)、异片苣苔属(Allostigma)和圆果苣苔属(Gyrogyne)。广西特有种有901种3亚种61变种, 占广西野生维管植物总数的11.04%, 特有种数量排名前10位的科分别为苦苣苔科(160种8变种)、天门冬科(67种)、茜草科(61种1变种)、荨麻科(51种5变种)、秋海棠科(51种3变种)、禾本科(36种1变种)、爵床科(27种1变种)、樟科(26种1变种)、山茶科(18种9变种)和姜科(26种); 排名前10位的属分别为报春苣苔属(117种6变种)、秋海棠属(56种2变种)、蜘蛛抱蛋属(55种1亚种)、楼梯草属(38种)、螺序草属(Spiradiclis, 33种)、耳蕨属(24种)、石山苣苔属(Petrocodon, 23种)、珍珠菜属(19种2变种)、马蓝属(20种)和蛛毛苣苔属(Paraboea, 19种)。各类群统计详见表1。
表1 广西野生维管植物的省级特有种统计(截至2022年12月)
Table 1
| 植物类别 Plant category | 特有种数量 No. of endemic species | 广西野生维管植物物种总数 No. of wild vascular plants in Guangxi (%) |
|---|---|---|
| 石松类和蕨类植物 Lycopods and pteridophytes | 16 | 716 (0.18) |
| 裸子植物 Gymnosperms | 3 | 65 (0.03) |
| 被子植物 Angiosperms | 946 | 7,958 (10.83) |
| 总计 Total | 965 | 8,739 (11.04) |
2.3 广西野生维管植物中的国家重点保护种类
广西共有349种野生维管植物被列入《国家重点保护野生植物名录》(2021) (表2), 约占全国重点保护野生维管植物总数的33.46%。其中国家一级和二级重点保护野生植物分别为42种和307种, 类群数量排名前10位的科分别为兰科(101种)、山茶科(18种4变种)、石松科(18种)、藜芦科(8种3变种)、合囊蕨科(10种)、松科(7种3变种)、苏铁科(9种)、桫椤科(8种)、锦葵科(8种)和木兰科(7种); 排名前10位的属分别为石斛属(Dendrobium, 36种)、兰属(Cymbidium, 25种)、红豆属(Ormosia, 24种)、山茶属(17种4变种)、兜兰属(Paphiopedilum, 17种)、马尾杉属(11种)、重楼属(Paris, 8种3变种)、莲座蕨属(10种)、苏铁属(9种)和石杉属(Huperzia, 7种)。
表2 广西野生维管植物的国家重点保护种类统计(截至2022年12月)
Table 2
| 植物类别 Plant category | 国家重点保护野生植物 National key protected wild plants | 占广西野生维管植物种总数的百分比 Percentage of wild vascular plants in Guangxi (%) | |
|---|---|---|---|
| I | II | ||
| 石松类和蕨类植物 Lycopods and pteridophytes | 1 | 41 | 0.48 |
| 裸子植物 Gymnosperms | 16 | 19 | 0.40 |
| 被子植物 Angiosperms | 25 | 247 | 3.11 |
| 总计 Total | 42 | 307 | 3.99 |
2.4 广西野生维管植物中的喀斯特专性类群
广西喀斯特的极度发育导致物种适生生境隔离, 使得许多植物类群在该区域剧烈分化形成了大量的新物种, 加之趋同进化和平行进化等因素联合作用, 导致此区域的众多植物科、属、种变异极为复杂, 也因此成为国内及世界范围内一个重要的生物多样性热点区域, 物种丰富度和特有性均较高。喀斯特专性植物的依据在于严格分布于喀斯特石山山体及其基部、以石灰岩为成土母质形成的土壤层以及坡积土范围生长的植物种类和类群, 且需有标本依据或可靠的文献证据, 本文对广西喀斯特专性植物的数量及占比作了相应的统计, 共计1,209种2亚种49变种(表3), 数量排名前10位的科分别为苦苣苔科(197种8变种)、天门冬科(77种)、兰科(65种)、茜草科(65种)、荨麻科(59种)、秋海棠科(56种2变种)、爵床科(45种)、报春花科(33种2变种)、樟科(32种3变种)和大戟科(29种); 排名前10位的属分别为报春苣苔属(117种6变种)、秋海棠属(56种2变种)、蜘蛛抱蛋属(55种1亚种)、楼梯草属(38种)、螺序草属(33种)、耳蕨属(24种)、石山苣苔属(23种)、珍珠菜属(19种2变种)、马蓝属(20种)和蛛毛苣苔属(19种)。
表3 广西喀斯特专性植物科属种统计(截至2022年12月)
Table 3
| 植物类别 Plant category | 科 Family | 属 Genus | 种(含种下等级) Species (including infraspecies) | 占广西野生维管植物种总数的百分比 Percentage of wild vascular plants in Guangxi (%) |
|---|---|---|---|---|
| 石松类和蕨类植物 Lycopods and pteridophytes | 10 | 19 | 68 | 0.78 |
| 裸子植物 Gymnosperms | 4 | 7 | 12 | 0.14 |
| 被子植物 Angiosperms | 115 | 359 | 1,180 | 13.50 |
| 总计 Total | 129 | 385 | 1,260 | 14.42 |
3 讨论
从广西种数较多的科属来看, 一部分是特化分布于广西喀斯特特殊生境的典型类群, 另一部分则是广西及周边的植物学者重点关注和研究的专科专属类群, 这两个条件共同促进了广西种数较多的科属相关分类学研究的快速发展。自《广西本土植物及其濒危状况》2018年出版以来, 每年都有不少广西维管植物新分类群的发表和分布新记录的发现, 总体增长迅速(Du et al, 2020; Zhang et al, 2020, 2021; Xiong et al, 2022)。仅2020年广西植物新分类群和新记录发表数量就分别达41个和10个, 2021年达29个和4个(杜诚等, 2021, 2022)。这一方面得益于植物学者对广西广泛分布的喀斯特地貌等特殊生境的长期关注, 相关考察和研究逐年深入, 越来越多的局限分布于特殊生境的新分类群被陆续发现和发表; 另一方面得益于我国农村“村村通公路”政策的实施, 改变了偏远乡村的交通状况, 使得植物学者得以深入到以前难以到达的地区, 开展更为全面细致的调查和研究, 从而有了更多的新发现(辛子兵等, 2019)。
鉴于广西野生维管植物丰富的多样性和高度的复杂性, 以及植物分类学科的特点, 目前仍有253种存疑种类(包括石松类和蕨类植物119种、裸子植物2种、被子植物132种)尚未被确认。对于这些分类存疑、经查未见采集自广西的可靠标本(广西标本未见、广西标本存疑或标本鉴定错误)或暂时无法确认是否广西本土植物的种类, 均未收录到本名录。这些存疑种类在正式确认和修订之前暂时全部列入附录2 (广西维管植物存疑种类列表), 并对其存疑类型做了相应的注释, 以便读者参考。这些种类为今后进一步完善广西野生维管植物的编目提供了明确的方向。在此, 本文呼吁相关植物学者对广西野生维管植物多样性开展更为深入的调查研究与保护工作。
附录 Supplementary Material
附录1 广西野生维管植物名录
Appendix 1 Checklist of wild vascular plants in Guangxi
附录2 广西维管植物存疑种类列表
Appendix 2 Checklist of suspected vascular plant species in Guangxi
致谢
感谢广西壮族自治区中国科学院广西植物研究所熊驰研究实习员、王仁芬研究实习员和陈荻雅同学在名录整理和论文写作过程中给予的帮助。本名录的更新与一代代植物工作者的大量前期积累密不可分, 谨以此文向从事广西植物分类学研究的前辈们致敬！
参考文献
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In order to better understand the origin of plant， phylogenetic differentiation and evolution process of flora， to promote the protection of endemic plants， endemic flora regions in Northeast China were systematically investigated respectively， including the species composition， family structure and genus structure， life-form composition， flora characteristics and geographical distribution. The results showed that：①There were 289 species of Chinese endemic plants， 109 species of endemic plants of Northeast China， 154 species of endemic plants of Changbai flora region， 16 species of endemic plants of Daxing’anling flora region， 10 species of endemic plants of Mongolia steppe flora region and 20 species of endemic plants of Northern China flora region. ②Among all kinds of endemic plants， herb were the most， and perennial herbs were the most dominant， while trees， shrubs and vines were the less. ③Chinese endemic plants were densely distributed in Daxing’anling Mountains and Changbai Mountains. ④The concentrated distribution areas of endemic plants of Northeast China were distributed along the main mountains in Northeast China， indicated that the endemic plants of Northeast China mainly originated from mountains. ⑤Changbai flora region had high level of endemism， showed the mature nature of the flora. Daxing’anling flora region， Mongolia steppe flora region and Northern China flora region had low level of endemism， showed the young nature of the flora. ⑥Endemic plants of Changbai flora region were densely distributed in Changbai Mountains. The endemic plants of Daxing’anling flora region were evenly distributed， and the endemic plants of Mongolia steppe flora region and the endemic plants of Northern China flora region were scattered.
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为了更好地理解植物区系的起源、种系分化及演化进程，推进特有植物保护工作，本文对东北地区内分布的中国特有植物、东北地区特有植物和植物区系地区特有植物的物种组成、科属结构、生活型组成、区系特征和地理分布情况进行了系统研究。结果表明：①研究区域内共有中国特有植物289种、东北地区特有植物109种、长白植物区系地区特有植物154种、大兴安岭植物区系地区特有植物16种、蒙古草原植物区系地区特有植物10种、华北植物区系地区特有植物20种。②各类特有植物中均以草本植物种数最多，其中多年生草本植物占绝对优势，乔木、灌木和藤本相对较少。③中国特有植物集中分布在东北地区大兴安岭山脉和长白山山脉。④东北地区特有植物集中分布地区与东北地区主要山脉走向一致，说明东北地区特有植物以山地起源植物为主。⑤长白植物区系地区植物特有性较强，表现出区系较为成熟的性质。大兴安岭植物区系地区、蒙古草原植物区系地区和华北植物区系地区特有性较弱，表现出区系较年轻的性质。⑥长白植物区系地区特有植物集中分布在吉林长白山山脉和长白山山脉向南延伸的余脉上。大兴安岭植物区系地区特有植物在区内分布较均匀，华北植物区系地区和蒙古草原植物区系地区特有植物在区内分布较零散。
Supplements to Checklist of Vascular Plants of Guangxi, China (V)
广西植物名录补遗(V)
Floristic characteristics of endemic plants to Guangxi
广西特有植物区系特征研究
Twenty years of Chinese vascular plant novelties, 2000 through 2019
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[本文引用: 1]
From 2000 to 2019, 11,895 new names or new additions to the Chinese vascular flora were proposed by 4226 individuals (4086 articles and 140 books), as documented in the Chinese Plant Names Index (CPNI). During those 20 years, 4407 new taxa of vascular plants were described from China, including 7 new families, 132 new genera, 3543 new species, 68 new subspecies, 497 new varieties and 160 new forms. Additionally, 3562 new combinations and names at new rank and 306 new replacement names were also proposed. Among these various new names were 150 invalid names and 108 illegitimate names, including some that have not been resolved. Six hundred and forty three vascular plants were reported as new to China, while 2349 names were reduced to synonyms of 1406 taxa. The data show that the Chinese flora increased in size at the rate of about 200 taxa annually during those years. Despite the increased attention given to biodiversity in recent years, the evidence indicates that a large number of species in China have yet to be discovered. Further basic investigation of the Chinese flora is needed. Additionally, in the past two decades only 8.5% of the newly published species have been based on molecular evidence, but in the past five years such data have increased significantly, reaching about 20%. Molecular data will undoubtedly become increasingly significant in the discovery of new species in the coming years. Yunnan, Guangxi, Sichuan, Xizang and Taiwan were important sources of new discoveries, with more than 3300 new taxa and records from these five provinces. By area, Taiwan and Hainan, two islands in southern China, have the highest density of newly discovered species. Regional plant surveys are still needed, especially in areas in the southwest and on the southern islands.
Annual report of new taxa and new names for Chinese plants in 2020
中国植物新分类群、新名称2020年度报告
2021 annual report on new taxa and nomenclatural changes of Chinese plants
中国植物新分类群、新名称变化2021年年度报告
Primulina hochiensis var. ochroleuca (Gesneriaceae), a new variety from a limestone area of Guangxi, China, and errata on five new species of Primulina
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Primulina hochiensis var. ochroleuca, a new variety from a limestone hill of karst areas, Guangxi, China is described with color photographs. It resembles P. hochiensis var. hochiensis, P. hochiensis var. ovata and P. hochiensis var. rosulata, but can be easily distinguished by a combination of characteristics, especially by its corolla color. We found only one population with approx. 3000 mature individuals at the type locality. This variety is provisionally assessed as vulnerable [VU C1] using IUCN criteria.
Biodiversity pursuits need a scientific and operative species concept
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生物多样性事业需要科学、可操作的物种概念
DOI:10.17520/biods.2016203
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物种概念(species concept)是生物学家们持续关注的中心问题。物种概念决定物种划分, 而物种划分的合理性关系到生物多样性的研究、保护和可持续利用。本文把现有较流行的物种概念分为6类, 并对它们予以述评后指出: 虽然生物学物种概念、遗传学物种概念、进化物种概念、系统发生物种概念等从不同方面认识了物种的客观真实性和物种的本质, 但在实践中都难以操作。绝大多数物种是由分类学家划分的, 但目前所有的分类学物种概念都包含有不同程度的主观因素, 从而造成物种划分的人为性, 对生物多样性研究造成负面影响。因此, 生物多样性事业需要科学、可操作的物种概念。本文在吸收了生物学物种概念、遗传学物种概念、进化物种概念以及系统发生物种概念等的长处, 也分析了它们的不足和问题的基础上提出一个新的物种概念, 即形态-生物学物种概念。最后, 以芍药属(Paeonia)几个物种的处理为例, 说明这一新的物种概念是可操作的, 划分的物种在形态上区别分明, 易于鉴别。更重要的是, 其结果得到基于25或26个单拷贝或寡拷贝核基因DNA序列所作的系统发生分析的强有力支持。各个物种在系统发生树上形成单系和独立的谱系, 表明其间各自形成独立的基因库, 没有基因交换, 它们独立进化, 有各自的生态位和独立的分布区。因此, 利用这一新的物种概念能够达到预期目标。
Supplement to Guangxi Plant List VI: Four new record genera and thirteen new record species of Orchidaceae
广西植物名录补遗VI——兰科4新记录属和13新记录种
Five new species of the genus Primulina (Gesneriaceae) from limestone areas of Guangxi Zhuangzu Autonomous Region, China
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Five new species of Primulina (Gesneriaceae) are described and illustrated here, namely P.purpureokylin F. Wen, Yi Huang & W. Chuen Chou, P.persica F. Wen, Yi Huang & W. Chuen Chou, P.cerina F. Wen, Yi Huang & W. Chuen Chou, P.niveolanosa F. Wen, S. Li & W. Chuen Chou and P.leiyyi F. Wen, Z.B. Xin & W. Chuen Chou. The characteristic traits of these species, together with photographs, detailed descriptions, notes on etymology, distribution, and habitat, as well as comparisons with morphologically similar species, are provided.
New records of angiosperms in Guangxi
广西被子植物新资料
Basic features of woody plant flora in Guangxi
广西木本植物区系的基本特征
Screening of conservation priority areas of biodiversity in Guangxi
广西生物多样性保护优先区筛选
Towards a phylogenetic classification of the climbing fern genus Arthropteris
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Lists of plants in Guangxi
广西植物名录考
A community-derived classification for extant lycophytes and ferns
An outline of karst geomorphology zoning in the karst areas of Southern China
中国南方喀斯特地貌分区纲要
Fundamental features of Guangxi flora of China
广西植物区系的基本特征
A dataset on inventory and geographical distributions of vascular plants in Beijing, China
DOI:10.17520/biods.2022064
[本文引用: 1]
<p id="p00005">An inventory of vascular plants in a region is of great significance for regional plant diversity conservation and sustainable utilization of plant resources. Beijing is the capital of China, where the inventory work has been carried out early since the 1960s, but it has not been systematically updated in the past three decades. Currently, the existing data is outdated, scattered and unsystematic, and the inventory progress has even fell behind the neighbouring areas of Beijing. Based on the inventory of vascular plants from the <i>Flora of Beijing</i> (1992 Revised Edition) and combined with the field survey from many years, we have composed a dataset on new inventory and geographical distributions of vascular plants in Beijing (including two sheets for native plants and introduced plants, the latter is incomplete currently), by supplementing with new taxa, new records and new distributions from comprehensive literatures, revising the scientific names (based on the new revision of classification), updating the classification systems (using those based on molecular data), and also adding some related information such as taxon rank, distribution status, growth status, outdoor/indoor, distribution areas, knowledge degree and conservation status. Up to December 31, 2021, the dataset has a total of 2,883 data items, with 1,680 items for native plants and 1,203 for introduced plants. There are 134 families, 611 genera, 1,597 taxa (1,440 species 3 natural hybrids 46 subspecies 97 varieties and 11 forms) of native wild vascular plants in Beijing, and totally 3 families, 26 genera, 173 species 4 subspecies 28 varieties and 11 forms should be supplemented to the last version of <i>Flora of Beijing</i>. The Beijing native wild plants included in the ‘List of National Key Protected Wild Plants (2021)’ have only been counted for 16 species (only 1 at the first class, others all at the second class). There are also 90 species 3 subspecies and 4 varieties included in the ‘List of Beijing Key Protected Wild Plants (2008)’. On introduced plants, so far 137 families, 581 genera and 1,184 taxa (992 species and other infraspecific taxa) are counted, including many cultivated plants (854 species 19 hybrids 15 subspecies 29 varieties 2 forms 87 cultivars 38 cultivar groups). There are still escape plants (132 species 1 subspecies), naturalized plants (77 species 2 varieties), and invasive plants (27 species) in Beijing. The dataset shows that the diversity of native wild vascular plants in Beijing is generally not very abundant, mainly dominated by widely distributed common species, and lacking endemic species, narrow-range species, or rare and endangered species; meanwhile, there are a large number of introduced plants in Beijing. Even many have long been recorded in the versions of <i>Flora of Beijing</i> but they are also an important part of the diversity of vascular plants in Beijing, although they also bring some confusion and uncertainty to the analysis of it due to the incomplete data.</p> <table-wrap id="T2"> <label xml:lang="en"> </label> <caption xml:lang="en"> <p id="p00015"><strong>Database/Dataset Profile</strong></p></caption> <table> <thead> <tr> <td valign="top" align="left" style="border-top:1px solid #000;border-bottom:1px solid #000;">Title</td> <td valign="top" align="left" style="border-top:1px solid #000;border-bottom:1px solid #000;">A dataset on inventory and geographical distributions of vascular plants in Beijing, China</td></tr></thead> <tbody> <tr> <td valign="top" align="left" style="border-top:1px solid #000;">Authors</td> <td valign="top" align="left" style="border-top:1px solid #000;">Cui Xiao, Bing Liu, Chaoran Wu, Jinshuang Ma, Jianfei Ye, Xiaofei Xia, Qinwen Lin</td></tr> <tr> <td valign="top" align="left">Corresponding author</td> <td valign="top" align="left">Qinwen Lin (linqinwen83@ibcas.ac.cn)</td></tr> <tr> <td valign="top" align="left">Time range</td> <td valign="top" align="left">1992-2021</td></tr> <tr> <td valign="top" align="left">Geographical scope</td> <td valign="top" align="left">Beijing</td></tr> <tr> <td valign="top" align="left">File size</td> <td valign="top" align="left">416 kb</td></tr> <tr> <td valign="top" align="left">Data volume</td> <td valign="top" align="left">Number of records in 1 file: 2,883</td></tr> <tr> <td valign="top" align="left">Data format</td> <td valign="top" align="left">*.xlsx</td></tr> <tr> <td valign="top" align="left">Data link</td> <td valign="top" align="left">https://www.scidb.cn/s/qeMfIb <br>http://doi.org/10.57760/sciencedb.01707 <br>https://www.biodiversity-science.net/fileup/1005-0094/DATA/2022064.zip</td></tr> <tr> <td valign="top" align="left" style="border-bottom:1px solid #000;">Database/Dataset composition</td> <td valign="top" align="left" style="border-bottom:1px solid #000;">The dataset consists of 1 data file containing 2 sheets with 2,883 items (rows) and 23 fields (columns) as following: sequence number, main categories of vascular plants, sequence number of family, Chinese family, family, Chinese genus, genus, Chinese name, scientific name, author, reference for taxonomic treatment, rank, distribution status, growth status, outdoor/indoor, distribution areas, knownledge degree, rank in the List of National Key Protected Wild Plants 2021, rank in the List of Beijing Key Protected Wild Plants 2008, data sources, type of data sources, scientific name in data sources, change with scientific name in data sources.</td></tr></tbody></table></table-wrap>
北京维管植物编目和分布数据集
Primulina papillosa (Gesneriaceae), a new species from limestone areas of Guangxi, China
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URL
[本文引用: 1]
Primulina papillosa Z.B. Xin, W.C. Chou &amp; F. Wen, a new species from limestone areas of Guangxi, China, is described and illustrated here. It morphologically resembles P. linearifolia (W.T. Wang) Yin Z. Wang and P. pseudolinearifolia W.B. Xu &amp; K.F. Chung, but can be easily distinguished by some combined characters, especially its leaf blades densely papillose-hispid. We found only one population at the type locality with no more than 200 individuals, so that this new species is provisionally assessed as Critically Endangered (CR) using IUCN Criteria.
The historical changes in the classification of Chinese Gesneriaceae: On the analysis of new taxonomic group qualifiedly published in China and new records of national distribution of this family
中国苦苣苔科植物的分类系统历史变化——兼论该科植物在我国合格发表的新分类群与国家级分布新记录情况分析
Primulina nana (Gesneriaceae), a new species from eastern Guangxi, China
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PMID:36760675
[本文引用: 1]
C.Xiong, W.C.Chou & F.Wen, a new species of Gesneriaceae from limestone areas of Guangxi, China, is described and illustrated here. It morphologically resembles Y.G.Wei & F.Wen in papillose leaf surface, but can be easily distinguished from the latter by noting a combination of characteristics, especially in its leaf blades, leaf blade indumentum characteristic, calyx lobes, corolla and the disc. We found only one population at the type locality, about 200 mature individuals. According to the IUCN Red List Categories and Criteria (Version 3.1), the new species is provisionally assessed as Critically Endangered (CR).Chi Xiong, Wei-Chuen Chou, Yi Huang, Fang Wen.
Recent advances on phylogenomics of gymnosperms and a new classification
DOI:10.1016/j.pld.2022.05.003
[本文引用: 1]
Living gymnosperms comprise four major groups: <i>cycads</i>, <i>Ginkgo</i>, conifers, and gnetophytes. Relationships among/within these lineages have not been fully resolved. Next generation sequencing has made available a large number of sequences, including both plastomes and single-copy nuclear genes, for reconstruction of solid phylogenetic trees. Recent advances in gymnosperm phylogenomic studies have updated our knowledge of gymnosperm systematics. Here, we review major advances of gymnosperm phylogeny over the past 10 years and propose an updated classification of extant gymnosperms. This new classification includes three classes (Cycadopsida, Ginkgoopsida, and Pinopsida), five subclasses (Cycadidae, Ginkgoidae, Cupressidae, Pinidae, and Gnetidae), eight orders (Cycadales, Ginkgoales, Araucariales, Cupressales, Pinales, Ephedrales, Gnetales, and Welwitschiales), 13 families, and 86 genera. We also described six new tribes including Acmopyleae Y. Yang, Austrocedreae Y. Yang, Chamaecyparideae Y. Yang, Microcachrydeae Y. Yang, Papuacedreae Y. Yang, and Prumnopityeae Y. Yang, and made 27 new combinations in the genus <i>Sabina</i>.
Petrocodon asterostriatus (Gesneriaceae), a new species from Guangxi, China
Some new records from Guangxi
广西植物新资料
Saxifraga viridiflora (Saxifragaceae), an unusual new species from Guangxi, China
DOI:10.3897/phytokeys.184.73421
URL
[本文引用: 1]
Saxifraga viridiflora, a remarkable new species of the genus Saxifraga sect. Irregulares (Saxifragaceae) from Guangxi, is described and illustrated herein. This new species morphologically differs from all known S. sect. Irregulares taxa by its greenish petals, verruculose sepals, and thick leathery leaf blade abaxially scarlet with white spots.
Dimetia brevipetiolata (Spermacoceae: Rubiaceae): A new species from Guangxi, China
Pteridryaceae: A new fern family of Polypodiineae (Polypodiales) including taxonomic treatments
DOI:10.1111/jse.v56.2 URL [本文引用: 1]
