| 云南东南部苦苣苔科植物一新种——南溪蛛毛苣苔 |
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| 引用本文： | 张贵良,蔡磊,王逸之,张贵生. 云南东南部苦苣苔科植物一新种——南溪蛛毛苣苔[J]. 广西植物, 2020, 40(10): 1423-1428 |
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| 作者姓名： | 张贵良 蔡磊 王逸之 张贵生 |
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| 作者单位： | 1. 河口瑶族自治县林业和草原局, 云南 河口, 661399; 2. 中国科学院昆明植物研究所云南省极小种群野生植物综合保护重点实验室/东亚植物多样性与生物地理学重点实验室, 昆明 650201; 3. 西南林业大学 生物多样性保护与利用学院, 昆明 650224; 4. 云南大围山国家级自然保护区河口管护分局, 云南 河口, 661399 |
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| 基金项目： | 国家科技基础资源调查专项项目(2017FY100100); 云南农业基金(2017FG001-081); 云南大围山脆弱生境植物专项调查项目(2018-2021)[Supported by the Science & Technology Basic Resources Investigation Program of China(2017FY100100); Yunnan Agricultural Foundation Projects(2017FG001-081); Special Investigation on Vulnerable Habitat Plants in Daweishan area, Yunnan, China(2018-2021)]。 |
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| 摘 要： | 中越边境的石灰岩地区不仅具有较丰富的植物多样性,而且特有现象十分突出。该文描述了中越边境石灰岩地区位于云南东南部河口境内的苦苣苔科一个植物新种——南溪蛛毛苣苔(Paraboea nanxiensis Lei Cai&Gui L. Zhang)。该新种在叶片的形状和毛被、花的颜色、花序短于叶片以及雌蕊无毛等性状上与产自广西那坡的垂花蛛毛苣苔(P. nutans D. Fang&D. H. Qin)最为相似。两者的主要区别在于:该新种的花萼裂片先端最宽且光滑无毛,花冠浅宽钟形、花冠筒不明显、花冠管内面基部白色,花丝无毛以及蒴果稍微扭曲;该新种生于云南海拔530~610 m的河口及马关一带,而垂花蛛毛苣苔产于广西那坡的海拔900~1 150 m段的石灰山。此外还讨论了该新种与蛛毛苣苔属其他几种基生叶类型的近缘种[如三萼蛛毛苣苔(P. trisepala W. H. Chen&Y. M.Shui)、蔓耗蛛毛苣苔(P. manhaoensis Y. M. Shui&W. H. Chen)及河口蛛毛苣苔(P. hekouensis Y. M. Shui&W. H. Chen)]的区别,并提供了相关物种的彩色图片及区分说明,主模式标本存放于中国科学院昆明植物研究所标本馆(KUN)中。近年来,由于中越边境的石灰岩地区不断有新分类群或新记录物种的发现,所以很有必要加强对该区域的植物多样性考察。
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| 关 键 词： | 蛛毛苣苔属 新类群 石灰岩地区 分类学 云南植物区系 |
| 收稿时间： | 2020-06-24 |
Paraboea nanxiensis(Gesneriaceae), a new species from southeastern Yunnan Province, China |
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| ZHANG Guiliang,CAI Lei,WANG Yizhi,ZHANG Guisheng. Paraboea nanxiensis(Gesneriaceae), a new species from southeastern Yunnan Province, China[J]. Guihaia, 2020, 40(10): 1423-1428 |
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| Authors: | ZHANG Guiliang CAI Lei WANG Yizhi ZHANG Guisheng |
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| Affiliation: | 1. Hekou Yao Autonomous County Forestry and Grassland Bureau, Hekou 661399, Yunnan, China; 2. Yunnan Key Laboratory for Integrative Conservation of Plant Species with Extremely Small Populations/ Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; 3. College of Biodiversity Conservation and Utilization, Southwest Forestry University, Kunming 650224, China; 4. Hekou Branch of Management and Protection Bureau of Daweishan National Nature Reserve, Hekou 661399, Yunnan, China |
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| Abstract: | Paraboea nanxiensis Lei Cai & Gui L. Zhang, a new species of Gesneriaceae from karst area around the Sino-Vietnamese border, is described here. The new species is morphologically similar to P. nutans D. Fang & D. H. Qin in the shape and indumentum characters of leaf blade, color of flower, length of the inflorescence and glabrous pistil, but it can be easily distinguished by the shape of the corolla, the color of flower interior, the shape and indumentum of calyx lobes, and capsule morphology. The detailed descriptions, color photographs, distribution and ecology, as well as its morphological relationship with similar species are also provided. In recent years, many new taxa or newly record species have been found in limestone areas along the Sino Vietnam border, it is necessary to strengthen the investigation of plant diversity for better understanding the high biodiversity in this area. |
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| Keywords: | Paraboea new taxon limestone area taxonomy Flora of Yunnan |
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