关键词: Classification Gentianales Neotropics Strychneae nomenclature systematics

来  源:   DOI:10.3897/phytokeys.243.123921   PDF(Pubmed)

Abstract:
Strychnos (Loganiaceae, Gentianales) is a large and pantropical genus of woody plants, ethnobotanically important as a source of many toxic alkaloids, including strychnine. Unfortunately, the status of numerous names at various ranks of Strychnos remains unresolved, including that of many specific or infraspecific taxa in the Neotropics. In this study, we address Strychnosbredemeyeri (basionym Lasiostomabredemeyeri), a species described in 1827 based on type material collected in Venezuela during the poorly documented Austrian Märter expedition (1783-1788). Strychnosbredemeyeri is an unarmed liana with solitary tendrils and axillary inflorescences that occurs in Neotropical rainforests and savannas in Brazil, Guyana, Trinidad and Tobago, and Venezuela. We clarify here the nomenclatural status of Lasiostoma Schreb., an illegitimate and superfluous genus currently in synonymy under Strychnos, and its former species Lasiostomabredemeyeri [= Strychnosbredemeyeri]. Also, we lectotypify S.pedunculata and S.trinitensis, both taxa currently synonyms of S.bredemeyeri.
摘要:
马鞭草(马鞭草科,Gentianales)是木本植物的大型和泛热带属,作为许多有毒生物碱的来源,包括马钱子碱.不幸的是,Strychnos各个级别的众多名称的地位仍未解决,包括新热带中许多特定或非特定分类群的分类群。在这项研究中,我们解决Strychnosbredemeyeri(别名Lasiostomabredemeyeri),1827年描述的一种物种,基于在文献很少的奥地利Märter探险(1783-1788)期间在委内瑞拉收集的类型材料。Strychnosbredemeyeri是一种手无寸铁的藤本植物,具有孤立的卷须和腋生花序,发生在巴西的新热带雨林和稀树草原,圭亚那,特立尼达和多巴哥,委内瑞拉。我们在这里澄清了LasiostomaSchreb的命名状态。,一个非法和多余的属,目前在Strychnos下是同义词,及其前物种Lasiostomabredemeyeri[=Strychnosbredemeyeri]。此外,我们对花梗和丁香进行了分类,这两个类群目前都是S.bredemeyeri的同义词。
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