Acacia pendula (Fabaceae: Mimosoideae) in the Hunter Valley of New South Wales: Cunningham’s collection from April 1825 and its implications

IF 0.5 4区生物学 Q4 PLANT SCIENCES

Telopea Pub Date : 2023-05-11 DOI:10.7751/telopea16981

Stephen A. J. Bell, C. Driscoll

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引用次数: 0

Abstract

Previous debate on the status of Acacia pendula A.Cunn. (Fabaceae: Mimosoideae) in the natural flora ofthe Hunter region of New South Wales remains unresolved. However, the discovery of a journal entry and aspecimen of Acacia pendula collected from ‘Hunter’s River’ by Allan Cunningham in April 1825 potentiallyprovide evidence for its long-term presence there. Close examination of a scan of this specimen reveals a poormatch to the lectotype for this species, and its infertile nature means that it cannot be positively identifiedusing taxonomic keys. Rediscovery of a small group of Acacia ‘pendula’ plants near to where Cunninghamtravelled in 1825 confirms the sterile and root-suckering habit of the species which is consistent with thosegrowing elsewhere in the region. Despite this find, Cunningham’s journal entry and collection provide noconfirmation that Acacia pendula naturally occurred extensively in the region (although it may have beenvery rare) but could suggest either that he had located one of the first introduced stands of the species in theregion (through indigenous people or European settlers), or that these sterile root-suckering plants representa currently un-named taxon or un-recognised hybrid. Final resolution of Hunter Valley populations of Acaciapendula s. lat. may only be attained through genetic studies.

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新南威尔士州猎人谷的金合欢(豆科:金合欢科):1825年4月Cunningham的收集及其意义

关于金合欢钟摆地位的前瞻辩论。在新南威尔士州亨特地区的自然植物区系中(Fabaceae: Mimosoideae)仍未得到解决。然而，1825年4月艾伦·坎宁安在《猎人河》中发现的一篇日志和金合欢钟摆标本，可能为金合欢在那里长期存在提供了证据。仔细检查该标本的扫描显示，它与该物种的选型不匹配，而且它的不育性意味着它不能用分类键来确定。在1825年坎宁安旅行过的地方附近重新发现了一小群金合欢“钟坠”植物，证实了该物种的不育和吸根习性，与该地区其他地方生长的金合欢植物一致。尽管有这样的发现，坎宁安的日记和收集并没有证实金合欢在该地区广泛自然生长(尽管它可能非常罕见)，但可能表明他已经找到了该地区第一批引入该物种的林分之一(通过土著人或欧洲定居者)，或者这些不育的吸根植物代表了目前尚未命名的分类群或未被识别的杂交植物。猎人谷种群的最终解析。可能只有通过基因研究才能获得。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.