Gastorchilus pseudodresslerii (Orchidaceae; Vandeae), a new species from China: evidence from morphological and DNA analysis

IF 1 4区生物学 Q3 PLANT SCIENCES Phytotaxa Pub Date : 2024-01-11 DOI:10.11646/phytotaxa.634.1.6

Cheng-Yuan Zhou, MENG-YAO Zeng, Yu-Wei Wu, Ming-He Li

引用次数: 0

Abstract

Gastrochilus pseudodresslerii (Aeridinae), a new species from Maguan County, Yunnan Province, China, is described and illustrated. Morphological comparisons indicated that this new species is similar to G. dresslerii, but differs by its longer and broadly lanceolate to oblong leaves, larger and elliptic dorsal sepal, longer and elliptic petals, subcupular hypochile, and narrowed toward apex of column. Phylogenetic analysis based on nuclear ribosomal ITS and four plastid sequences (atpI, matK, psbA and trnL-F) indicated that G. pseudodresslerii is also closely related to G. formosanus and G. raraensis, but can be easily distinguished from these two species based on its leaves, epichile and hypochile.

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Gastorchilus pseudodresslerii（兰科；万代属），中国的一个新种：形态学和 DNA 分析的证据

Gastrochilus pseudodresslerii（Aeridinae）是产于中国云南省马关县的一个新种，本文对其进行了描述并绘制了插图。形态学比较表明，该新种与 G. dresslerii 相似，但其不同之处在于叶片更长且宽披针形至长圆形，背萼片更大且呈椭圆形，花瓣更长且呈椭圆形，下鳞片近杯状，柱体向先端变窄。基于核核糖体 ITS 和四种质粒序列（atpI、matK、psbA 和 trnL-F）的系统发生分析表明，G. pseudodresslerii 与 G. formosanus 和 G. raraensis 也有密切的亲缘关系，但根据其叶片、副萼和叶下垂可很容易地与这两个物种区分开来。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.