佛蒙特州的钩叶蒲公英

IF 0.2 4区生物学 Q4 PLANT SCIENCES

Rhodora Pub Date : 2022-04-12 DOI:10.3119/20-31

Arthur V. Gilman

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引用次数: 0

摘要

2020年5月，在一个熟悉佛蒙特州植物群中的非本土蒲公英（Taraxcum F.H.Wigg）的项目中，我在喀里多尼亚县哈德威克的一片草地上遇到了一群非常独特的蒲公英。通过研究相关文献和插图（Dudman和Richards 1997；Richards 2012；Richards和Sell 1976；Stace 2019；Trávníček和Vašut 2011），我确定它是T.hamatum Raunk。（图1）。采集凭证标本并存放在MT、NEBC和VT。，Dansk Exskurs-Fl.，ed.2:225（1906）基于丹麦的一种类型：Sjaelland（新西兰），Jonstrup Væng，skoveng[forest]，1905年5月14日，Raunkier s.n.，C（C10021066）的选型，由Öllgaard选择，未见。该选模标本的图像由Öllgaard（1983）发表；复制品的图像（S10-38037）可在JSTOR Global Plants（2020）上获得。Dudman和Richards（1997年）、Richards（2012年）以及Trávníček和Vašut（2011年）都有出色的插图。本系列完全符合的相关标识字符包括以下内容：

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Hook-Lobed Dandelion, Taraxacum hamatum (T. Section Hamata: Asteraceae) in Vermont

In May 2020, in connection with a project to familiarize myself with the nonnative dandelions (Taraxacum F. H. Wigg.) in the flora of Vermont, I encountered a population of a very distinctive dandelion in a meadow in Hardwick, Caledonia County. Upon study with relevant literature and illustrations (Dudman and Richards 1997; Richards 2012; Richards and Sell 1976; Stace 2019; Trávníček and Vašut 2011), I determined it to be T. hamatum Raunk. (Figure 1). Voucher specimens were collected and are deposited at MT, NEBC, and VT. Taraxacum hamatum Raunk., Dansk Exskurs.-Fl., ed. 2: 225 (1906) was based on a type from Denmark: Sjaelland (Zealand), Jonstrup Væng, skoveng [forest], 14 May 1905, Raunkier s.n., lectotype at C (C10021066), chosen by Øllgaard, not seen. An image of the lectotype specimen was published by Øllgaard (1983); an image of a duplicate (S10-38037) is available on JSTOR Global Plants (2020). Excellent illustrations may be found in Dudman and Richards (1997), Richards (2012), and Trávníček and Vašut (2011). Relevant characters for identification, to which this collection fully conforms, include the following:

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来源期刊

Rhodora 生物-植物科学

CiteScore

0.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： This peer-reviewed journal is devoted primarily to the botany of North America and accepts scientific papers and notes relating to the systematics, floristics, ecology, paleobotany, or conservation biology of this or floristically related regions.