<em>Coccoloba burkeae</em> and <em>C. najarroi</em>, two new species of <em>Coccoloba</em> sect. <em>Coccoloba</em> (Polygonaceae) from Mexico

IF 1.1 4区 生物学 Q3 PLANT SCIENCES Botanical Sciences Pub Date : 2023-11-06 DOI:10.17129/botsci.3344
Juan Javier Ortiz-Díaz, Juan Tun-Garrido, Juan José Ancona
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Abstract

Background: Coccoloba is a Neotropical genus of trees, shrubs, and lianas with approximately 150 species. Reviwed Mexican specimens of Coccoloba do not correspond to any recognized species within the genus, so they are proposed as new species. Question: What are the morphological characteristics that differentiate the two new species from other Coccolobaspecies? What is its distribution and conservation status? Studied species: Species of Coccoloba sect. Coccoloba endemic to Mexico. Study site and dates: Chiapas and Veracruz, Mexico, 2022-2023. Methods: All available information for Coccoloba, including herbarium specimens and online databases, was reviewed. Subsequently, a comparative analysis was carried out including the two new species proposed and the recognized species in the genus. Geographic distribution maps were prepared and the conservation status of the new species was determined, following the IUCN guidelines. Results: Coccoloba burkeae and C. najarroi are described and illustrated as new species. Both are endemic to Mexico. C. burkeae is distributed in the humid forests of the Tuxtlas region in Veracruz and is morphologically similar to C. barbadensis, C. hondurensis and C. spicata; this species is considered in the Endangered (EN) category. C. najarroi is restricted to the humid forests of Chiapas and is similar to C. ascendens and C. ibarrae. This species is considered Critically Endangered (CR). Conclusions: The morphological characteristics of the fruit, the inflorescence and the leaves are important to diagnose the two new species of Coccoloba; both being endemic to Mexico.
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& lt; em> Coccoloba burkeae< / em>和& lt; em> C。najarroi</em>,两新种<em>Coccoloba</em>教派。& lt; em> Coccoloba< / em>(蓼科)产于墨西哥
背景:可可是一个新热带的乔木、灌木和藤本植物属,大约有150种。经审查的墨西哥Coccoloba标本与该属中任何已知的物种都不对应,因此它们被提议作为新种。问题:这两个新种与其他球虫种的形态学特征是什么?它的分布和保护状况如何? 研究种:cocoloba科种。cocoloba墨西哥特有种。 研究地点和日期:墨西哥恰帕斯州和韦拉克鲁斯州,2022-2023年。方法:对所有可获得的球虫资料进行分析,包括植物标本馆标本和在线数据库。随后,对该属的两个新种和已确认种进行了比较分析。按照世界自然保护联盟的指导方针,绘制了新物种的地理分布图,并确定了新物种的保护状况。结果:将burkeae和C. najarroi描述为新种。这两种疾病都是墨西哥特有的。C. burkeae分布在韦拉克鲁斯州Tuxtlas地区的湿润森林中,形态与C. barbadensis、C. hondurensis和C. spicata相似;该物种被认为是濒危物种(EN)。C. najarroi局限于恰帕斯的潮湿森林,与C. ascendens和C. ibarrae相似。该物种被认为是极度濒危物种(CR)。结论:果实、花序和叶片的形态特征对两个新种的诊断具有重要意义;都是墨西哥特有的
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来源期刊
Botanical Sciences
Botanical Sciences Agricultural and Biological Sciences-Plant Science
CiteScore
1.90
自引率
21.40%
发文量
71
审稿时长
16 weeks
期刊介绍: Botanical Sciences welcomes contributions that present original, previously unpublished results in Botany, including disciplines such as ecology and evolution, structure and function, systematics and taxonomy, in addition to other areas related to the study of plants. Research reviews are also accepted if they summarize recent advances in a subject, discipline, area, or developmental trend of botany; these should include an analytical, critical, and interpretative approach to a specific topic. Acceptance for reviews will be evaluated first by the Review Editor. Opinion Notes and Book Reviews are also published as long as a relevant contribution in the study of Botany is explained and supported.
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