Taxonomic Revision of Serpocaulon (Polypodiaceae)

IF 1.1 3区生物学 Q3 PLANT SCIENCES

Annals of the Missouri Botanical Garden Pub Date : 2023-10-18 DOI:10.3417/2023766

David Sanín, Alexandre Salino, Alan R. Smith

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引用次数: 1

Abstract

We present a taxonomic revision of Serpocaulon A. R. Sm. (Polypodiaceae), a tropical American fern genus. Our work is based on a morphological analysis of 56 characters recorded from 2167 specimens deposited in 41 herbaria. Field trips were carried out in Argentina, Bolivia, Brazil, Colombia, Costa Rica, Ecuador, Panama, and Peru, where observations on the habit and habitat of several species were made. Digital images were also consulted. A total of 260 names were found and their nomenclatural types were studied, resulting in the lectotypification of 47 names (first-step 30, second-step 17 names). We recognize 37 species and five hybrids in Serpocaulon; one of the hybrids is given a new status (S. ×semipinnatifidum (Fée) A. R. Sm.) and another one is described (S. ×tabuleirense D. Sanín & Salino). Moreover, 19 names are newly synonymized, five species are excluded, 17 names are considered as of uncertain application, and five as nomina nuda. We document for 22 species a total of 62 chorological novelties in different countries. The elevational range of the genus is 0–4200 m. The Andes of Ecuador and Colombia are the main center of diversity and endemism; secondarily, the Atlantic Rain Forest of Brazil has five endemic species. We provide a taxonomic key, descriptions, discussions, local names, uses, illustrations, photographs of the plants in the field, microphotographs of the rhizome scales and the spores, and distribution maps of all species.

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水蛭科水蛭属植物的分类修正

本文提出了一种Serpocaulon a . R. Sm的分类订正。(水蛭科)，美洲热带蕨类植物属。我们的工作是基于对41个植物标本室2167个标本中记录的56个字符的形态学分析。在阿根廷、玻利维亚、巴西、哥伦比亚、哥斯达黎加、厄瓜多尔、巴拿马和秘鲁进行了实地考察，观察了几个物种的习性和栖息地。数码图像也被参考。共发现260个名称，并对其命名类型进行了研究，得到47个名称(第一步30个，第二步17个)的lectotypification。我们在Serpocaulon发现了37个物种和5个杂交种;其中一个杂交种被赋予了新的地位(S. ×semipinnatifidum (fsame) a . R. Sm.)，另一个杂交种被描述(S. ×tabuleirense D. Sanín &Salino)。新同义命名19个，排除种5个，应用不确定名称17个，命名种数5个。我们在不同的国家记录了22个物种共62个时代学新物种。该属海拔范围为0-4200米。厄瓜多尔和哥伦比亚的安第斯山脉是物种多样性和地方性的主要中心;其次，巴西的大西洋雨林有五种特有物种。我们提供了分类关键，描述，讨论，当地名称，用途，插图，植物的照片，根茎鳞片和孢子的显微照片，以及所有物种的分布图。

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来源期刊

Annals of the Missouri Botanical Garden 生物-植物科学

CiteScore

3.60

自引率

0.00%

发文量

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.