The demise of Monechma: new combinations and a new classification in the resurrected genera Meiosperma and Pogonospermum (Acanthaceae)

The demise of Monechma: new combinations and a new classification in the resurrected genera Meiosperma and Pogonospermum (Acanthaceae)
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Monechma 的消亡:复兴的 Meiosperma 和 Pogonospermum(棘科)属的新组合和新分类

DOI:
10.1007/s12225-022-10003-w
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发表时间:
2022
期刊:
影响因子:
0.9
通讯作者:
Manzitto-Tripp, Erin A.
Manzitto-Tripp, Erin A.
中科院分区:
生物学4区
文献类型:
--
作者:
Darbyshire, Iain;Kiel, Carrie A.;Chase, Frances M.;Manzitto-Tripp, Erin A.

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最近的分子系统学结果表明Monechmas.l.,在撒哈拉以南非洲的热带草原和肉质植物群落中具有重要生态意义的一组植物,具有两个可识别的离散谱系。在目前的工作中,我们amniseMonechmaGroupsI和II在属级,这可以区分的花序特征和种子形态的差异。这些研究结果的命名的影响进行了调查。Monechma,M.苞片属Hochst.,是与爵床属(JusticiaL.)有密切亲缘关系的一个小植物谱系的一部分。Harnieria(索尔姆斯)Benth.其最早的有效名称是MeiospermaRaf。因此,Monechmais同义内Meiosperma,其中包括六个公认的种和两个未描述的类群。大多数物种的formerMonechmas.l。在第二谱系中得到解决,其唯一有效发表的属名是Pogonospermum Hochst。这复活的属包括34个被接受的种加上两个未描述的taxi.Pogonospermum显示相当大的形态变异,并在这里被细分为6个部分,主要是基于植物习性,花序形式,花萼,苞片和小苞片脉序,和种子毛被的差异。新的组合和新的部分进行了验证,和七个公认的物种名称进行了选择。
Recent molecular phylogenetic results have demonstrated thatMonechmas.l., a group of plants with ecological importance in the savanna and succulent biomes of sub-Saharan Africa, is polyphyletic with two discrete lineages recognisable. In the present work, we recogniseMonechmaGroups I and II at the generic rank, which can be distinguished by differences in inflorescence characteristics and seed morphology. The nomenclatural implications of these findings are investigated. The lectotype ofMonechma,M. bracteatumHochst., is a part of a small lineage of plants closely allied toJusticiaL. sect.Harnieria(Solms) Benth. for which the earliest valid name is found to beMeiospermaRaf. Hence,Monechmais synonymised withinMeiosperma, which comprises six accepted species and two undescribed taxa. The majority of species of formerMonechmas.l. are resolved within the second lineage for which the only validly published generic name isPogonospermumHochst. This resurrected genus comprises 34 accepted species plus two undescribed taxa.Pogonospermumdisplays considerable morphological variation and is here subdivided into six sections based primarily on differences in plant habit, inflorescence form, calyx, bract and bracteole venation, and seed indumentum. The new combinations and new sections are validated, and seven accepted species names are lectotypified.
Justicia tetrasperma sp. nov.——Justicia 和 Monechma(棘科)之间的连接种
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