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A new species of Hyphoderma (Meruliaceae, Polyporales) and its discrimination from closely related taxa

机译：一种新的皮肤病菌（Meruliaceae，Polyporales）及其与密切相关的分类群的区别

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摘要

Thirty-five corticioid collections from the Canary Islands and Azores Archipelago were examined morphologically and subjected to molecular phylogenetic analysis. These specimens, almost all collected on endemic and/or xerophilic vegetation, were similar in morphological and ecological characteristics to Hypochnicium prosopidis from the Sonoran Desert (Arizona, USA) and Hyphoderma amoenum. Thirty-seven new ITS nrDNA sequences from these specimens, including the nomenclatural type of the above-mentioned species, were obtained and aligned with homologous sequences from GenBank. These collections were distributed in two strongly supported monophyletic clades. However, similar patterns of morphological variability shared by specimens included in both clades and their differences with related species suggest that they should be described as a single new species. Therefore Hyphoderma macaronesicum is proposed. Studies will be required to test, in a more robust multilocus genealogical framework, whether these populations constitute two cryptic species or whether they are the same taxon. The position of Hypochnicium prosopidis in the resolved tree and its morphological characters suggest that it should be included in Hyphoderma and the new combination Hyphoderma prosopidis is proposed.
机译：从形态学检查了来自加那利群岛和亚速尔群岛的三十五个皮质类固醇，并进行了分子系统发育分析。这些标本几乎全部采集于特有和/或嗜湿性植物上，其形态和生态特征与来自索诺兰沙漠（美国亚利桑那州）和变形金刚菌的腐生腐殖质相似。从这些样本中获得了37个新的ITS nrDNA序列，包括上述物种的命名类型，并与GenBank的同源序列进行了比对。这些集合被分布在两个强烈支持的单一系统进化枝中。但是，两个进化枝中包含的标本共有相似的形态变异模式，并且它们与相关物种的差异也表明它们应被描述为一个新物种。因此，提出了马卡因霉菌。将需要进行研究，以便在更稳健的多位谱系谱框架中测试这些种群是否构成两个隐性物种或它们是否属于同一分类群。 Hypochnicium prosopidis在分解树中的位置及其形态特征表明它应被包括在Hyphoderma中，并提出了新的组合Hypoderma prosopidis。

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