| 引用本文: | 陆昭岑, 刘恩德, 韩孟奇, 朱鑫鑫, NGUYEN Khang Sinh, 许为斌.微花蛛毛苣苔在中国云南的发现及其补充描述[J].广西植物,2020,40(10):1438-1444.[点击复制] |
| LU Zhaocen, LIU Ende, HAN Mengqi, ZHU Xinxin,
NGUYEN Khang Sinh, XU Weibin.Discovery of Paraboea minutiflora (Gesneriaceae) from Southeast Yunnan, China with supplementary description[J].Guihaia,2020,40(10):1438-1444.[点击复制] |
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| 微花蛛毛苣苔在中国云南的发现及其补充描述 |
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陆昭岑1, 刘恩德2, 韩孟奇3, 朱鑫鑫4, NGUYEN Khang Sinh5, 许为斌1*
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1. 广西喀斯特植物保育和恢复生态学重点实验室, 广西壮族自治区
中国科学院 广西植物研究所, 中国 广西 桂林 541006;2. 东亚植物多样性与生物地理学重点实验室, 中国科学院昆明植物研究所, 中国 昆明 650201;3. 系统与进化国家重点实验室, 中国科学院植物研究所, 中国 北京 100093;4. 信阳师范学院, 生命科学学院,
中国 河南 信阳 464000;5. 越南科学技术研究院 生态与生物资源研究所, 越南 河内 10072
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| 摘要: |
| 中越边境喀斯特地区是全球生物多样性热点地区,也是生物多样性保护的关键区域,近年来在该地区发现了多个蛛毛苣苔属植物的新种。微花蛛毛苣苔于2001年在越南北部喀斯特地区首次采集到标本,直到2018年才被发表出来,由于发表时仅基于一号花发育未成熟的标本,所以该物种的诸多形态特征仍不清楚。作者开展中越边境喀斯特地区植物多样性调查时,在我国云南东南部发现了微花蛛毛苣苔,并采集到花发育成熟的植株,对其进行了解剖观察和测量,现对该物种进行补充描述,并提供墨线图和野外生态照片以资辨认。微花蛛毛苣苔与腺花蛛毛苣苔在光滑无毛而反折的花萼以及被腺毛的花冠等形态上最相似,但不同之处在于微花蛛毛苣苔的叶上面幼时被褐色蛛丝状绵毛,后变近无毛,花序顶生,花冠长9～12 mm,蒴果直,不旋扭,长1.2～2.8 cm。微花蛛毛苣苔在滇东南的发现,说明中国南部喀斯特地区和越南北部喀斯特地区构成了一个完整的植物区系地理单元。 |
| 关键词: 生物多样性热点, 石灰岩植物区系, 中越边境喀斯特地貌 |
| DOI：10.11931/guihaia.gxzw201909027 |
| 分类号:Q949 |
| 文章编号:1000-3142(2020)10-1438-07 |
| 基金项目:国家自然科学基金(31860043,31400183); 中央引导地方科技发展专项资金项目(桂科ZY1949013); 广西重点研发计划项目(桂科AB16380256)[Supported by the National Natural Science Foundation of China(31860043, 31400183 ); Special Fund for Local Science and Technology Development Guided by the Central Committee(ZY1949013); Guangxi Key Research and Development Program(AB16380256)]。 |
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| Discovery of Paraboea minutiflora (Gesneriaceae) from Southeast Yunnan, China with supplementary description |
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LU Zhaocen1, LIU Ende2, HAN Mengqi3, ZHU Xinxin4,
NGUYEN Khang Sinh5, XU Weibin1*
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1. Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang
Autonomous Region and Chinese Academy of Sciences, Guilin 541006, Guangxi, China;2. Key Lab of Biodiversity and Biogeography,
Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China;3. State Key Laboratory of Systematic and
Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China;4. College of Life Sciences,
Xinyang Normal University, Xinyang 464000, Henan, China;5. Institute of Ecology and Biological Resources,
Vietnam Academy of Science and Technology, Hanoi 10072, Vietnam
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| Abstract: |
| Sino-Vietnamese limestone karsts are biodiversity hotspots in the world and key areas for biodiversity conservation, and many new species of Paraboea have been found there recently. Paraboea minutiflora D. J. Middleton was collected firstly from northern Vietnam in 2001 and was published in 2018, but it is incomplete and lacks type specimens with mature flowers when reported. The description of Paraboea minutiflora was supplemented based on the collections from southeastern Yunnan, China and Ha Giang, Vietnam, and line drawing and photos are also provided. Paraboea minutiflora is most similar to Paraboea glanduliflora Barnett in having glabrous, reflexed calyx and corolla with glandular hairs, but differs from the latter by the upper leaf surfaces covered with brown matted indumentum when young, but glabrescent at maturity, the inflorescences terminal, the corolla 9-12 mm long, the capsule straight, 1.2–2.8 cm long. The discovery of Paraboea minutiflora from southeastern Yunnan, China demonstrates the flora is closely interrelated between the southern limestone karsts of China and the northern limestone karsts of Vietnam. |
| Key words: biodiversity hotspot, limestone flora, Sino-Vietnamese limestone karsts |
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