Two new species of Platanthera (Orchidaceae, Orchidoideae) from Xizang, China

IF 1 4区生物学 Q3 PLANT SCIENCES Phytotaxa Pub Date : 2024-05-02 DOI:10.11646/phytotaxa.646.2.9

Dongliang Lin, Liyue Zhang, Chao Ye, Jianwu Li, Xiaohua Jin

引用次数: 0

Abstract

Two new orchid species, Platanthera linzhiensis, P. deergongensis, are described and illustrated from Motuo, Xizang, China. P. linzhiensis is closely related to P. uniformis, but differs from it by lip yellowish green, spur yellow, nearly as long as ovary, connective obtuse-truncate, not protruding from anther, column lateral appendages ovate to oblong, slightly shorter than the anther. P. deergongensis is morphologically similar to P. contigua, but is distinguished from it by having white lip, obtuse-truncate connective and ovate to oblong column lateral appendages. Molecular phylogenetic analysis based on six markers (nrITS, psaB, matK, psbA-trnH, rbcL, trnL-F) revealed that P. linzhiensis and P. deergongensis formed a clade with high support, and are close to P. superantha.

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来自中国西藏的两个 Platanthera（兰科，兰属）新种

本报告描述并图解了产自中国西藏墨脱的两个兰花新种：Platanthera linzhiensis 和 P. deergongensis。P. linzhiensis与P. uniformis亲缘关系密切，但唇瓣黄绿色，距黄色，几乎与子房等长，药隔钝截形，不突出于花药，柱状侧附属物卵形至长圆形，稍短于花药。Degongensis 在形态上与 P. contigua 相似，但有白色的唇、钝截形的药隔和卵形至长圆形的柱状侧附属物，因此与 P. contigua 有所区别。基于六个标记（nrITS、psaB、matK、psbA-trnH、rbcL、trnL-F）的分子系统学分析表明，P. linzhiensis 和 P. deergongensis 形成了一个高支持的支系，与 P. superantha 接近。

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来源期刊

Phytotaxa PLANT SCIENCES-

CiteScore

1.90

自引率

27.30%

发文量

956

审稿时长

1 months

期刊介绍： Phytotaxa is a peer-reviewed, international journal for rapid publication of high quality papers on any aspect of systematic and taxonomic botany, with a preference for large taxonomic works such as monographs, floras, revisions and evolutionary studies and descriptions of new taxa. Phytotaxa covers all groups covered by the International Code of Nomenclature foralgae, fungi, and plants ICNafp (fungi, lichens, algae, diatoms, mosses, liverworts, hornworts, and vascular plants), both living and fossil. Phytotaxa was founded in 2009 as botanical sister journal to Zootaxa. It has a large editorial board, who are running this journal on a voluntary basis, and it is published by Magnolia Press (Auckland , New Zealand). It is also indexed by SCIE, JCR and Biosis. All types of taxonomic, floristic and phytogeographic papers are considered, including theoretical papers and methodology, systematics and phylogeny, monographs, revisions and reviews, catalogues, biographies and bibliographies, history of botanical explorations, identification guides, floras, analyses of characters, phylogenetic studies and phytogeography, descriptions of taxa, typification and nomenclatural papers. Monographs and other long manuscripts (of 60 printed pages or more) can be published as books, which will receive an ISBN number as well as being part of the Phytotaxa series.