Taxonomic Revision of the Petiolatum Clade of Elaphoglossum sect. Lepidoglossa (Dryopteridaceae)

IF 1.1 3区生物学 Q3 PLANT SCIENCES

Annals of the Missouri Botanical Garden Pub Date : 2024-07-16 DOI:10.3417/2024894

A. Martínez-Becerril, Alejandra Vasco

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Abstract

This paper provides a monograph of the petiolatum clade of Elaphoglossum Schott ex J. Sm. sect. Lepidoglossa Christ (Dryopteridaceae). This group has been recovered as monophyletic in several molecular phylogenetic analyses. Morphologically, the petiolatum clade is recognized by laminae with resinous dots and flat and/or stellate scales, rhizome scales with acute to filiform-tortuous apices, scales on the proximal portion of the petiole with dark apices, and perines broadly folded, sparsely echinulate with spines less than 1 μm high, or (in E. petiolatum (Sw.) Urb.) with sparse irregular microstructures. Eight species are recognized as a part of the clade, all of them distributed in the American tropics from Mexico to Panama, and one species in the Greater Antilles. Most of the species occur between 1000 and 2500 m elevation in tropical, temperate, and pine-oak forests. Presented here are an identification key, a full synonymy, detailed descriptions, a list of specimens examined, an index to collectors’ names and collection numbers, images of the plants and their main structures, spore microphotographs, and distribution maps for all species. A new combination is made for E. schmitzii (Mett. ex Kuhn) Martínez-Bec. & A. Vasco, and lectotypes are designated for Acrostichum intermedium Fée, E. muelleri (E. Fourn.) C. Chr., E. potosianum Christ, E. pringlei (Davenp.) C. Chr., and E. schmitzii.

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Elaphoglossum sect.Lepidoglossa (Dryopteridaceae) 蝶形花科

本文为 Elaphoglossum Schott ex J. Sm. sect.Lepidoglossa Christ（Dryopteridaceae）。在多项分子系统学分析中，该群系被认为是单系的。从形态上看，叶柄支系的特征是叶片上有树脂点和扁平和/或星状的鳞片，根状茎鳞片的顶端为锐尖或丝状扭曲，叶柄下部的鳞片顶端为深色，被毛宽折，疏生棘刺，刺高小于 1 μm，或（在 E. petiolatum (Sw.) Urb. 中）有稀疏的不规则微结构。该支系共有 8 个物种，全部分布在从墨西哥到巴拿马的美洲热带地区，还有一个物种分布在大安的列斯群岛。大多数物种分布在海拔 1000 到 2500 米之间的热带、温带和松栎林中。本报告提供了所有物种的识别钥匙、完整的同义词、详细描述、检查过的标本清单、采集者姓名和采集编号索引、植物及其主要结构的图片、孢子显微照片和分布图。Schmitzii (Mett. ex Kuhn) Martínez-Bec. & A. Vasco，并为 Acrostichum intermedium Fée, E. muelleri (E. Fourn.) C. Chr., E. potosianum Christ, E. pringlei (Davenp.) C. Chr., and E. schmitzii 指定了模式标本。

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Annals of the Missouri Botanical Garden 生物-植物科学

CiteScore

3.60

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0.00%

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期刊介绍： The Annals of the Missouri Botanical Garden is a quarterly international journal primarily devoted to systematic botany and evolutionary biology. We encourage submissions of original papers dealing with significant advances in the taxonomy, phylogeny, biogeography, paleobiology, and evolution of plants, and in conservation genetics and biology, restoration ecology, and ethnobiology, using morphological and/or molecular characters, field observations, and/or database information. We also welcome reviews and papers on conceptual issues and new methodologies in systematics. Important floristic works will also be considered. Symposium proceedings discussing a broader range of topical biological subjects are also published, typically once a year. All manuscripts are peer-reviewed by qualified and independent reviewers.