The genus Isoetes (Isoetaceae) in Central Africa (Democratic Republic of the Congo, Rwanda, Burundi) with the description of three new species

IF 1.8 3区生物学 Q2 PLANT SCIENCES Willdenowia Pub Date : 2022-12-01 DOI:10.3372/wi.52.52303

E. Fischer, W. Lobin

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Abstract

Abstract: Three new species of Isoetes (Isoetaceae) are described from the Democratic Republic of the Congo, Rwanda and Burundi for inclusion in the family treatment for the Flore d'Afrique Centrale. Isoetes hallei sp. nov. is related to I. alstonii and I. schweinfurthii, I. rwandensis sp. nov. to I. abyssinica and I. welwitschii, and I. pichisermollii sp. nov. to I. abyssinica and I. schweinfurthii. The differences between these species are discussed and geographical distribution maps for the new species are presented. The conservation status of the new species is preliminarily assessed. The megaspores of the type specimens of I. abyssinica, I. alstonii, I. schweinfurthii and I. welwitschii were studied using Scanning Electron Microscopy to distinguish the new species from the more similar other ones. Citation: Fischer E. & Lobin W. 2022: The genus Isoetes (Isoetaceae) in Central Africa (Democratic Republic of the Congo, Rwanda, Burundi) with the description of three new species. – Willdenowia 52: 315–334. Version of record first published online on 1 December 2022 ahead of inclusion in December 2022 issue.

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中非（刚果民主共和国、卢旺达、布隆迪）的Isoetes属（Isoetaceae）及其三个新种的描述

摘要/ Abstract摘要:报道了来自刚果民主共和国、卢旺达和布隆迪的三种Isoetes (Isoetaceae)新种，并将其纳入了flora d’afrique Centrale的科分类。haletes hallei sp. 11与I. alstonii和I. schweinfurthii有亲缘关系，卢旺达I. rwandensis sp. 11与I. abyssinica和I. welwitschii有亲缘关系，pichisermollii sp. 11与I. abyssinica和I. schweinfurthii有亲缘关系。讨论了这些物种之间的差异，并给出了新种的地理分布图。对新种的保护状况进行了初步评价。利用扫描电子显微镜对深海棘球蚴、alstonii棘球蚴、schweinfurthii棘球蚴和welwitschii棘球蚴模式标本的大孢子进行了研究，以区分新种与其他相似的棘球蚴。引文:Fischer E. & Lobin W. 2022:中非(刚果民主共和国，卢旺达，布隆迪)的Isoetes属(Isoetaceae)及其三个新种的描述。-野生植物学报52:315-334。记录版本于2022年12月1日首次在线发布，随后将于2022年12月发行。

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来源期刊

Willdenowia PLANT SCIENCES-

CiteScore

4.60

自引率

5.30%

发文量

审稿时长

>12 weeks

期刊介绍： Willdenowia is an international peer-reviewed journal publishing original research articles in English from the entire fields of plant, algal and fungal systematics, covering the evolution, taxonomy and nomenclature of these organisms as well as related fields such as floristics and plant geography. Articles on phylogeny and molecular systematics are especially welcome, as are review articles. Descriptions of new taxa may be considered, but only if supported by robust evidence. Narrowly regional studies of widespread taxa, routine typifications, checklists and new floristic records are generally not considered (excluding contributions to the Euro+Med-Checklist Notulae). Authors are encouraged to deposit duplicates of their material, especially nomenclatural types, in the Berlin herbarium (B).