新热带巴豆科。大戟属植物:分类更新、系统发育框架及南美洲7个新种

IF 1.1 3区生物学 Q3 PLANT SCIENCES

Annals of the Missouri Botanical Garden Pub Date : 2021-07-01 DOI:10.3417/2021669

R. Riina, B. Ee, M. B. Caruzo, D. S. Carneiro-Torres, R. F. D. Santos, P. Berry

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引用次数: 7

摘要

Croton L.sect的修订评估。Geiseleria（A.Gray）Baill。提供了。现在划定的区域包括分布在美洲温暖地区的84个物种。产生了来自83个物种的150份材料的核ITS系统发育和来自65个物种的89份材料的叶绿体trnL-F系统发育，以确认该物种的正确系统发育位置，并确定是否应该排除之前包含在该部分中的任何物种。描述了七个新物种，我们提供了一个分类学概要，列出了所有目前接受的物种及其同义词、分布和相关评论。我们也承认克罗顿教派的四个分支。Geiseleria并列出它们对应的物种。根据形态学和分子标准，我们现在将拉古尼拉埃·克里扎特C.lagunillae Croizat视为一个独特的物种，而不是guildingii Griseb的一个变种。（现在被称为C.suavis Kunth），我们治疗C.ramillatus Croizat var.maniglandulifer V.W.Steim。作为一个物种，C.magniglandulifer（V.W.Steim.）B.W.van Ee。我们也排除了C.tedenius Baill。来自Croton教派。Geiseleria（A.Gray）Baill。以及相关物种，如C.pulegiodorus Baill。和C.leptobotryus Muëll。Arg。，他们要么是克罗顿教派的成员。Griseb腺茶碱。或者可以获得新的分段状态。我们还排除了C.waltherioides Urb。，尽管尚不清楚它属于克罗顿的哪一部分。

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The Neotropical Croton sect. Geiseleria (Euphorbiaceae): Classification Update, Phylogenetic Framework, and Seven New Species from South America

A revised assessment of Croton L. sect. Geiseleria (A. Gray) Baill. is provided. The section as now circumscribed includes 84 species ranging across warm areas of the Americas. A nuclear ITS phylogeny of 150 accessions from 83 species and a chloroplast trnL-F phylogeny of 89 accessions from 65 species were generated to confirm correct phylogenetic placement of the species and to determine if any species previously included in the section should now be excluded. Seven new species are described, and we present a taxonomic synopsis that lists all currently accepted species along with their synonyms, distributions, and pertinent comments. We also recognize four subsections within Croton sect. Geiseleria and list their corresponding species. Based on both morphological and molecular criteria, we now recognize C. lagunillae Croizat as a distinct species, rather than as a variety of C. guildingii Griseb. (now treated as C. suavis Kunth), and we treat C. ramillatus Croizat var. magniglandulifer V. W. Steinm. as a species, C. magniglandulifer (V. W. Steinm.) B. W. van Ee. We also exclude C. tetradenius Baill. from Croton sect. Geiseleria (A. Gray) Baill. along with related species such as C. pulegiodorus Baill. and C. leptobotryus Müll. Arg., which are either members of Croton sect. Adenophylli Griseb. or else may merit new sectional status. We also exclude C. waltherioides Urb., although it is not clear to which section of Croton it belongs.

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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.