来自西澳西南部的一罕见新种——升柏树属(苏柏科)和短柏树属新组合

IF 0.5 4区生物学 Q4 PLANT SCIENCES

Telopea Pub Date : 2022-06-16 DOI:10.7751/telopea15795

R. Barrett, K. Wilson

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引用次数: 0

摘要

在这里，我们将Machaerina ascendens R.L.Barrett和K.L.Wilson描述为来自西澳大利亚西南部森林内沼泽的新物种。这个新物种很容易通过它的攀援习性和压缩的多节秆来识别，这些特征使它与所有其他澳大利亚物种分开。明显的二列颖片，在基部融合成环形的少数下位鳞片和显著的具柄小坚果也是在mahaerina Vahl中不寻常的特征。由于其特定的栖息地，其活动范围受到高度限制，似乎有资格被列为濒危物种。对所有适用于当前Machaerina概念的名称的研究揭示了澳大利亚东部物种Machaerina nuda (Steud)的早期名称。本文将Schoenus缩写词Nees与R.L.Barrett和K.L.Wilson的缩写词(Nees)进行了新的组合。

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Machaerina ascendens (Cyperaceae), a rare new species from the far south-west of Western Australia, and a new combination for Schoenus abbreviatus Nees

We here describe Machaerina ascendens R.L.Barrett & K.L.Wilson as a new species from swamps within forests in the far south-west of Western Australia. The new species is readily identifiable by its scrambling habit and compressed, multi-noded culms, features which separate it from all other Australian species. The clearly distichous glumes, few hypogynous scales fused at the base into a ring and prominently stipitate nutlets are also unusual features in Machaerina Vahl. Machaerina ascendens is highly range-restricted by its specific habitat and appears to qualify for listing as Endangered. Study of all names applicable to the current concept of Machaerina revealed an earlier name for the eastern Australian species Machaerina nuda (Steud.) J.Kern, and a new combination is provided here for Schoenus abbreviatus Nees as Machaerina abbreviata (Nees) R.L.Barrett & K.L.Wilson.

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来源期刊

Telopea PLANT SCIENCES-

CiteScore

1.30

自引率

42.90%

发文量

期刊介绍： Manuscripts submitted for publication in TELOPEA are published online, after peer review and acceptance by the TELOPEA Editorial Committee and when final editorial formatting has been completed. The journal specialises in plant systematics and phylogeny. The geographic scope of the journal encompasses Australia, Malesia, Melanesia, Micronesia, and Polynesia. The suitability of a work for the journal depends on the topic and the region of origin, generally the narrower the focus of the manuscript the closer to New South Wales must be its geographic focus. As a general guide, we will consider: 1) revisionary treatments and other substantial bodies of work from any of the regions mentioned above. 2) new species from any Australian state. 3) new country records for Australia from any state. 4) new state records from New South Wales only. However, we aim to support botanical research across the broader Australasian and Pacific region, and will consider submissions on their merit. Generally we will not consider extraterritorial new country records, or single lectotypification papers unless they pertain to New South Wales taxa, or have significant bearing on the Australian flora.