The alpha diversity of Laurencia sensu stricto, as well as the majority of the other algal groups along the Mexican Pacific, was underestimated because very few studies had incorporated the use of molecular markers in taxonomic studies, which would allow a more realistic estimation of diversity, incluing new records and new species. The records of Laurencia s.s. for the Eastern Pacific (California, USA to Chile) currently represent 23% of its richness worldwide. In this work, we proposed an updated census of the currently recognized species of Laurencia s.s. for the Mexican Pacific. This checklist reported the occurrence of 22 species that represent 16% of the 137 species worldly recorded. We further included taxonomic remarks, type localities, and a detailed distribution for each species. In addition, we proposed a new species for this region, Laurencia mutueae sp. nov., based on morphological observation as well as phylogenetic analyses. The distribution in the Mexican Pacific revealed that the highest records of species were for the sub‐temperate region, while the localities along the Mexican tropical Pacific were poorly recorded. The scarcity of floristic affinities between the eastern and the western and central parts of the North Pacific Ocean was hypothesized to be a consequence of a strong isolation and hard barriers, such as the water masses between these regions.

中文翻译：

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来自墨西哥太平洋的 Laurencia sensu stricto（Rhodomelaceae，Rhodophyta）的多样性和分布，包括 L. mutueae sp。十一月

Laurencia sensu stricto 以及墨西哥太平洋沿岸大多数其他藻类群的 alpha 多样性被低估了，因为很少有研究在分类学研究中结合使用分子标记，这将允许对多样性进行更现实的估计，包括新记录和新物种。Laurencia ss 在东太平洋（加利福尼亚、美国到智利）的记录目前占其全球丰富度的 23%。在这项工作中，我们提出了对墨西哥太平洋目前公认的 Laurencia ss 物种的更新普查。该清单报告了 22 个物种的出现，占世界记录的 137 个物种的 16%。我们进一步包括分类注释、类型位置和每个物种的详细分布。此外，我们为该地区提出了一个新物种，Laurencia mutueae sp. 11 月，基于形态学观察和系统发育分析。墨西哥太平洋的分布显示，亚温带地区的物种记录最高，而墨西哥热带太平洋沿岸地区的记录很少。北太平洋东部和西部和中部之间植物区系的稀少被假设是由于这些地区之间存在强烈的隔离和硬屏障，例如这些区域之间的水团。