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引用本文:陈 力, 陈文红, 郭世伟, 温 放, 税玉民.云南东南部石山苣苔属一新种——细管石山苣苔(英文)[J].广西植物,2019,39(5):574-580.[点击复制]
CHEN Li, CHEN Wenhong, GUO Shiwei, WEN Fang, SHUI Yumin.Petrocodon tenuitubus(Gesneriaceae), a new species from Southeast Yunnan, China[J].Guihaia,2019,39(5):574-580.[点击复制]
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云南东南部石山苣苔属一新种——细管石山苣苔(英文)
陈 力1,2, 陈文红1,4, 郭世伟1,5, 温 放3,6, 税玉民1,4*
1. 中国科学院昆明植物研究所 东亚植物多样性与生物地理学重点实验室, 昆明 650201;2. 云南大学 生命科学学院, 昆明 650091;3. 广西壮族自治区 中国科学院 广西植物研究所, 广西 桂林 541006;4. 云南喀斯特保护研究会, 昆明 650201;5. 中国科学院大学, 北京100049;6.6. 中国苦苣苔科植物保育中心, 中国科学院桂林植物园, 广西 桂林541006
摘要:
最近被重新界定的广义石山苣苔属(Petrocodon Hance)是苦苣苔科(Gesneriaceae)一个中等大小的属,我国目前已知的有34种1变种,主要分布于我国华南至西南石灰岩地区。该文报道了于云南东南部马关县发现的该属一新种——细管石山苣苔(Petrocodon tenuitubus W. H. Chen, F. Wen & Y. M. Shui)。该新种在形态上与陆氏细筒苣苔(P. lui)、细筒苣苔(P. hispidus)和长檐苣苔(P. jasminiflorus)相似,但其线形或披针形的苞片和小苞片均为3枚,花冠筒细小且弯曲,盘形柱头1,很容易区别于陆氏细筒苣苔和细筒苣苔; 而其叶片卵形至圆形,花冠裂片卵形而尖端钝以及退化雄蕊3,则显著区别于长檐苣苔。该新种的发现对推进我国石灰岩地区苦苣苔科植物资源的发掘具有一定意义。主模式标本存放于中国科学院昆明植物研究所标本馆(KUN),等模式标本存放于广西植物研究所标本馆(IBK)。
关键词:  云南植物区系, 石灰岩洞穴, 新分类群, 石山苣苔属, 分类学
DOI:10.11931/guihaia.gxzw201808033
分类号:Q949
文章编号:1000-3142(2019)05-0574-07
基金项目:国家自然科学基金(31470306, 31000258, 31860047); 中华人民共和国生态环境部生物多样性调查评估项目; 广西自然科学基金(2017GXNSFAA198006); 广西喀斯特地区植物保护与恢复生态重点实验室基金(17-259-23); 广西科学院科学研究基金(2017YJJ23022)[Supported by the National Natural Science Foundation of China(31470306, 31000258, 31860047); Biodiversity Background Survey and Assessment Program of Ministry of Ecology and Environment of the People's Republic of China; Guangxi Natural Science Foundation Program(2017GXNSFAA198006); Fund of Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain(17-259-23); Science Research Foundation of Guangxi Academy of Sciences(2017YJJ23022)]。
Petrocodon tenuitubus(Gesneriaceae), a new species from Southeast Yunnan, China
CHEN Li1,2, CHEN Wenhong1,4, GUO Shiwei1,5, WEN Fang3,6, SHUI Yumin1,4*
1. CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;2. School of Life Sciences, Yunnan University, Kunming 650091, China;3. Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China;4. Karst Conservation Initiative of Yunnan, Kunming 650201, China;5. University of Chinese Academy of Sciences, Beijing 100049, China;6.6. Gesneriad Conservation Center of China, Guilin Botanical Garden, Chinese Academy of Sciences, Guilin 541006, Guangxi, China 1. CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; 2. School of Life Sciences, Yunnan University, Kunming 650091, China; 3. Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China; 4. Karst Conservation Initiative of Yunnan, Kunming 650201, China; 5. University of Chinese Academy of Sciences, Beijing 100049, China; 6. Gesneriad Conservation Center of China, Guilin Botanical Garden, Chinese Academy of Sciences, Guilin 541006, Guangxi, China
Abstract:
The newly refined genus Petrocodon Hance(Gesneriaceae), mainly distributed from South China to Southwest China, is comprised of 34 species and one variety. A new species, Petrocodon tenuitubus W. H. Chen, F. Wen & Y. M. Shui, distributed in the limestone region from Maguan County, Yunnan Province, China, is illustrated and described here. The new species is similar to P. lui, P. hispidus and P. jasminiflorus, but it can be easily distinguished from P. lui and P. hispidus by its slender and curved corolla tube, three linear to lanceolate bracts and bracteoles, and one disc-shaped stigma. And it also can be easily distinguished from P. jasminiflorus by its ovate to orbicular leaves, ovate corolla lobes with obtuse apex, bracts and bracteoles 3, and staminodes 1. The discovery of this new species has certain significance for promoting the excavation of the resources of the Gesneriaceae in limestone area of China. The holotype and paratype specimens are deposited in Herbarium of Kunming Institute of Botany, Chinese Academy of Sciences(KUN); isotype specimens is deposited in Herbarium of Guangxi Institute of Botany(IBK).
Key words:  flora of Yunnan, limestone cave, new taxon, Petrocodon, taxonomy
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