Liparis wenshanensis, a new orchid species from China: Evidence from morphological and molecular analyses
Liparis wenshanensis, a new orchid species from China: Evidence from morphological and molecular analyses
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DOI：
10.11646/phytotaxa.204.4.2
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发表时间：
2015-04-08
期刊：
影响因子：
1.1
通讯作者：
Zhang, Guo-Qiang
中科院分区：
文献类型：
--
作者：
Su, Yong-Yu;Huang, Yi-Lang;Zhang, Guo-Qiang
通过形态学和分子生物学分析，描述了云南发现的兰科植物一新种-文山羊耳蒜。对新发现的兰花与羊耳蒜属的其他成员进行了详细的比较。该新植物的特征是：长轴，花45 - 55朵;白色萼片、花瓣和圆柱;带绿色的唇，中心带紫色;背侧萼片和花瓣强烈下弯和外卷;侧萼片强烈下弯，长圆形;心形的唇，中部以下强烈内折，先端两裂，基部有两裂的胼胝体;一个弓形的柱，有一个薄片，沿着沿着中心几乎延伸到柱头，并且有一对宽的翅膀朝向顶端。这些特征将这种新兰花与所有其他已知的羊耳蒜属物种区分开来。我们进行了系统发育分析，以确定这一神秘物种的系统位置。基于核核糖体ITS和质体matK DNA序列的分子分析支持L. wenshanensis为一独立种。
A new orchid species, Liparis wenshanensis, discovered in Yunnan, China is described and illustrated in this study based on morphological and molecular analyses. A detailed comparison between the newly discovered orchid and other members of the genus, Liparis, was conducted. The new plant is characterized by the combination of the following features: a long rachis with 45 to 55 flowers; white sepals, petals and column; a greenish lip with a purplish center; strongly recurved and revolute dorsal sepals and petals; strongly recurved, oblong lateral sepals; a cordate lip that is strongly deflexed below the middle, with a two-lobed apex and a two-lobed callus at the base; an arcuate column with a lamella extending along the center almost to the stigma, and with a pair of broad wings toward the apex. These features distinguish the new orchid from all other known species of Liparis. We proceeded to a phylogenetic analysis to ascertain the systematic position of this enigmatic species. Molecular analyses based on nuclear ribosomal ITS and plastid matK DNA sequence data supports the recognition of L. wenshanensis as a distinct species.