Two new genera and six other novelties in Heterochaete sensu lato (Auriculariales, Basidiomycota)
Two new genera and six other novelties in Heterochaete sensu lato (Auriculariales, Basidiomycota)
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DOI：
10.1139/cjb-2019-0046
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发表时间：
2019-08-01
期刊：
影响因子：
1.1
通讯作者：
Larsson, Karl-Henrik
中科院分区：
文献类型：
--
作者：
Mendes Alvarenga, Renato Lucio;Spirin, Viacheslav;Larsson, Karl-Henrik
Heterochaete属（木耳目，担子菌门）传统上被定义为包括具有分布在子实层表面上的无菌刺（菌丝栓）的倒卧真菌物种。最近基于DNA的研究表明，异毛纲是多系的，尽管该属下许多物种的正确分类位置尚未得到解决。在这项研究中，我们修订了Heterochaete s.l.的一些代表的分类分配，特别强调新热带分类群。根据我们的研究结果，提出了2个新属、3个新种和3个新组合。Adustochaete是一个新属，包括两个新描述的物种，从干燥的硬木树枝在新热带区;这两个物种是Adustochaete rava（属模式）从巴西和Adustochaete interrupta从墨西哥。迄今为止，第二属，原毛纲，包括一个单一的种，原毛纲adusta comb. nov.，广泛分布于温带北方。此外，还报道了一个新种，即山刺Tremellochaete cerradensis sp. nov.描述了一个新组合，纤毛Tremellochaete ciliata comb. nov.，在Tremellochaete中提出，两者都记录在巴西。根据形态学证据和DNA分析，将该种移至Eichleriella。
The genus Heterochaete (Auriculariales, Basidiomycota) is traditionally defined as comprising resupinate fungal species with sterile spines (hyphal pegs) that are distributed on hymenial surface. Recent DNA-based studies have indicated that Heterochaete is polyphyletic, although the correct taxonomic positions of many species under this genus remains unresolved. In this study, we revised the taxonomic assignments of some representatives of Heterochaete s.l., with special emphasis on neotropical taxa. Based on our results, two new genera, three new species, and three new combinations are proposed. Adustochaete is a new genus comprising two newly described species collected from dry hardwood twigs in the Neotropics; these two species are Adustochaete rava (the genus type) from Brazil and Adustochaete interrupta from Mexico. To date, the second genus, Proterochaete, comprises a single species, Proterochaete adusta comb. nov., which is widely distributed in the temperate Northern hemisphere. In addition, one new species, Tremellochaete cerradensis sp. nov., is described and one new combination, Tremellochaete ciliata comb. nov., is proposed in Tremellochaete, both recorded in Brazil. A neotype is selected for Heterochaetella ochracea, and this species was moved to Eichleriella based on morphological evidence and DNA analyses.