A new species of Rhododendron (Ericaceae) from the Gaoligong Mountains, Yunnan, China, supported by morphological and DNA barcoding data
A new species of Rhododendron (Ericaceae) from the Gaoligong Mountains, Yunnan, China, supported by morphological and DNA barcoding data
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来自中国云南高黎贡山的杜鹃花（杜鹃花科）新种，有形态学和 DNA 条形码数据支持
DOI：
10.11646/phytotaxa.114.1.4
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发表时间：
2013-06-24
期刊：
影响因子：
1.1
通讯作者：
Sun, Weibang
中科院分区：
文献类型：
--
作者：
Ma, Yongpeng;Wu, Zhikun;Sun, Weibang
白花杜鹃杜鹃(Rundoduron Bahuaense sp.)11月被描述为云南特有新种--中国，迄今仅在高黎贡山东侧的百花岭发现。从形态上看，白花大麦与山毛大麦和普通大麦的区别在于成熟叶片上无鳞片，每花序只开2-5朵花，花冠白色，花冠呈漏斗状，花柱纤细直立。基于四个标准DNA条形码(rbcL、matK、trnH-PSBA和ITS)的分子分析表明，白花核桃在遗传上与汉山核桃和普通核桃核桃不同，并被描述为一个新种。
Rhododendron baihuaense sp. nov. is described as a new species endemic to Yunnan, China, that has, to date, only been found in Baihualing on the eastern side of the Gaoligong Mountains. Morphologically, R. baihuaense can be readily distinguished from R. hanceanum and R. genestierianum, by its absent scales on mature leaves, only 2-5 flowers per inflorescence, the funnel-shaped flower and white corolla, and its slender and erect style. A molecular analysis based on the four standard DNA barcodes (rbcL, matK, trnH-psbA and ITS) indicates that R. baihuaense is genetically distinct from R. hanceanum and R. genestierianum, and, together with the morphological differences, is described here as a new species.