Pandanus grayorum (Pandanaceae), a new species endemic to north-eastern Queensland (Australia)

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-06-07 DOI:10.1071/SB20033

M. Callmander, S. Buerki, F. Zich, A. Field, Timothy J. Gallaher

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引用次数: 1

Abstract

Abstract. Pandanus grayorum Callm., Buerki & Gallaher (Pandanaceae) is newly described from the Wet Tropics of north-eastern Queensland in Australia. It is the second Australian species other than P. gemmifer H.St.John known to reproduce by axillary plantlets on aerial branches. It can be distinguished from P. gemmifer and P. solms-laubachii F.Muell. by the dimensions of its leaves, shape and dimensions of its syncarps, and by the morphology of its phalanges. The placement of P. grayorum in a molecular phylogeny confirmed morphological evidence and showed that the new species clusters with P. gemmifer and P. solms-laubachii in a clade closely related to the P. tectorius Parkinson complex. Pandanus grayorum is known from near the banks of the lower reaches of Mulgrave, Russell, Johnstone and Moresby rivers and associated subcoastal flood plains. Most collection records are from areas outside national parks and a preliminary conservation assessment of Vulnerable is suggested using the IUCN Red List. Finally, a key to north-eastern Queensland Pandanus species is also provided.

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澳洲昆士兰东北部特有的一新种——灰熊猫(熊猫科)

摘要大熊猫愈伤组织。，Buerki&Gallaher（Pandanaceae）是澳大利亚昆士兰东北部潮湿热带地区的一种新物种。它是除P.gemmifer H.St.John外，已知的第二个通过在地上枝条上的腋生植株繁殖的澳大利亚物种。它可以通过其叶片的尺寸、合果的形状和尺寸以及指骨的形态来与P.gemmifer和P.solms laubachii F.Muell区分开来。灰色P.grayorum在分子系统发育中的位置证实了形态学证据，并表明新物种与吉米弗P.gemmifer和劳氏P.solms-laubachii聚在一个与P.tectorius Parkinson复合体密切相关的分支中。Pandanus grayorum产于Mulgrave河、Russell河、Johnstone河和Moresby河下游以及相关的海岸下洪泛平原附近。大多数采集记录来自国家公园以外的地区，建议使用国际自然保护联盟红色名录对易危物种进行初步保护评估。最后，还提供了昆士兰东北部Pandanus物种的关键。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.