中国西南山区新发现的亚高山附生兰 Gastrochilusbalangshanensis（兰科，Aeridinae）。

IF 1.3 3区生物学 Q3 PLANT SCIENCES

PhytoKeys Pub Date : 2024-10-11 eCollection Date: 2024-01-01 DOI:10.3897/phytokeys.247.130755

Jun-Yi Zhang, Yue-Hong Cheng, Min Liao, Sen-Long Jin, Hong-Qiang Lin, Pan-Yan Yang, Hai He, Bo Xu

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引用次数: 0

摘要

Gastrochilusbalangshanensis 是产自中国西南部四川省巴郎山的一个兰花新种，本研究对其进行了描述并绘制了插图。它在形态上类似于 G.affinis，但不同之处在于茎较短，有肾形的外果皮和近半球形的下果皮（距），先端钝圆。基于 50 个 Gastrochilus 物种的核糖体内部转录间隔（nrITS）和 4 个叶绿体 DNA 标记（matK、psbA-trnH、psbM-trnD 和 trnL-F）的分子系统学分析结果表明，巴郎山 Gastrochilus 与横断山脉特有的 G.heminii 和 G.bernhardtianus 关系密切。它是针阔混交林中的一种树枝和树干附生植物。

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Gastrochilusbalangshanensis (Orchidaceae, Aeridinae), a new subalpine epiphytic orchid from the Mountains of Southwest China.

Gastrochilusbalangshanensis, a new orchid species from the Balang Mountain, Sichuan Province, Southwest China, is described and illustrated. It morphologically resembles G.affinis, but differs in having shorter stems, a reniform epichile and a sub-hemispherical hypochile (spur), obtuse-rounded at the apex. The results of molecular phylogenetic analyses based on nuclear ribosome internal transcribed spacer (nrITS) and four chloroplast DNA markers (matK, psbA-trnH, psbM-trnD and trnL-F) from 50 Gastrochilus species indicate that G.balangshanensis is closely related to G.heminii and G.bernhardtianus, also endemic to the Hengduan Mountains. The novelty is a branch and trunk epiphyte in mixed coniferous forest.

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来源期刊

PhytoKeys PLANT SCIENCES-

CiteScore

2.60

自引率

14.30%

发文量

189

审稿时长

6 weeks

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