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引用次数: 0
摘要
德国图林根州和巴伐利亚州的植物以前被认为属于Potentilla thuringiaca，但它们至少属于三个不同的类群。图林根州和巴伐利亚州的大多数种群比较一致，倍性为 2n = 10x。这些种群属于最初描述的 P. thuringiaca。Thuringiaca 指定了一个主模式和一个副模式。在东图林根的一个孤立分布区，我们发现了八倍体（2n = 8x），其主要特征是花茎数量较多。这些种群被描述为 Potentilla saalae T. Gregor & Korsch。来自巴伐利亚罗恩（Rhoen）极小范围内的单倍体（2n = 10x）植物，中央叶片较圆，可能是独立起源。德国的 P. thuringiaca 种群与阿尔卑斯山、巴尔干半岛、喀尔巴阡山脉和东欧的 P. thuringiaca 种群之间的关系尚未解决。
Potentilla thuringiaca Bernh. ex Link in Germany—A polyploid enigma
Plants in German states Thuringia and Bavaria previously thought to belong to Potentilla thuringiaca belong to at least three different taxa. Most populations in Thuringia and Bavaria are rather uniform and have a ploidy of 2n = 10x. These populations belong to P. thuringiaca as originally described. A lectotype and an epitype are designated for P. thuringiaca. In an isolated range in Eastern Thuringia, we found octoploids (2n = 8x), which are characterized mainly by a higher number of flowering stems. These populations are described as Potentilla saalae T. Gregor & Korsch. Decaploid (2n = 10x) plants from a very small range in the Bavarian Rhoen with more rounded central leaves are probably of independent origin. The relationship of German P. thuringiaca populations to those in the Alps, the Balkans, the Carpathians, and Eastern Europe is unresolved.
期刊介绍：
Feddes Repertorium - Journal of Botanical Taxonomy and Geobotany is one of the world"s leading publications in theory and practice. Original research papers and reviews cover all groups of the plant world, including extant and fossil. Theory and principles of taxonomy, nomenclature, techniques and methodology, on evolution and phylogeny and descriptions of new taxa are considered as well. The reader will also find information on the history of flora and vegetation. All papers are internationally refereed by experts in their respective fields.
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