美洲Lycopus americanus subsp。Laurentianus（Lamiaceae）：美国新发现的加拿大东部特有紫杉

Pub Date : 2021-07-15 DOI:10.3119/20-22

S. Bailleul, Frédéric Coursol

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引用次数: 0

摘要

摘要。提出了美洲石竹的新地位：美洲石竹亚种。laurentianus，该分类单元是美国新报道的，在缅因州、新罕布什尔州、纽约州和佛蒙特州都有分布。2007年，在尚普兰湖畔发现了六起发生在佛蒙特州的事件和三起发生在纽约州的事件。随后对草本植物中美洲乳杆菌标本的审查发现，美洲乳杆菌亚种的出现更多。纽约州和佛蒙特州的laurentianus，以及新罕布什尔州和缅因州的新病例。还介绍了以前只有法语版本的这一相对模糊的分类单元的重要出版物和数据。小坚果形态是目前分离美洲乳杆菌亚种的唯一可靠的诊断特征。来自美洲乳杆菌亚种的月桂。美洲。

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Lycopus americanus subsp. Laurentianus (Lamiaceae): An Eastern Canadian Endemic Taxon New to the United States

ABSTRACT. A new status for Lycopus laurentianus is proposed: Lycopus americanus subsp. laurentianus, and the taxon is newly reported from the United States with occurrences in Maine, New Hampshire, New York, and Vermont. Six occurrences in Vermont and three in New York were discovered on the shores of Lake Champlain in 2007. Subsequent review of L. americanus specimens from herbaria yielded more occurrences of L. americanus subsp. laurentianus in New York and Vermont, as well as new occurrences in New Hampshire and in Maine. Important publications and data previously available only in French of this relatively obscure taxon are also presented. Nutlet morphology is presently the only reliable diagnostic character separating L. americanus subsp. laurentianus from L. americanus subsp. americanus.

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