Recent studies using sequence data from eight sequence loci and coalescent-based species delimitation methods have revealed several species-level lineages of Tulasnella associated with the orchid genera Arthrochilus, Caleana, Chiloglottis, and Drakaea in Australia. Here we formally describe three of those species, Tulasnella prima, T. secunda, and T. warcupii spp. nov., as well as an additional Tulasnella species associated with Chiloglottis growing in Sphagnum, T. sphagneti sp. nov. Species were identified by phylogenetic analyses of the ITS with up to 1.3 % sequence divergence within taxa and a minimum of 7.6 % intraspecific divergence. These new Tulasnella (Tulasnellaceae, Cantharellales) species are currently only known from orchid hosts, with each fungal species showing a strong relationship with an orchid genus. In this study, T. prima and T. sphagneti associate with Chiloglottis, while T. secunda associates with Drakaea and Caleana, and T. warcupii associates with Arthrochilus oreophilus.

中文翻译：

---

在澳大利亚，与陆地兰相关的图拉菌属的新种。

最近使用来自八个序列位点的序列数据和基于聚结的物种定界方法进行的最新研究表明，澳大利亚的兰花属Arthrochilus，Caleana，Chiloglottis和Drakaea相关的Tulasnella的几个物种级谱系。在这里，我们正式描述这些物种中的三个，即原产不育小球藻，次生T. secunda和T. warcupii spp。nov。，以及与生长在Sphagnum，T. sphagneti sp。的Chiloglottis相关的其他Tulasnella物种。十一月 通过对ITS的系统发育分析，可以确定物种，其中分类单元内的序列差异最大为1.3％，种内差异最小为7.6％。目前仅从兰花寄主中得知这些新的伞形藻（Tulasnellaceae，Cantharellales）物种，每种真菌物种均与兰花属有很强的联系。在这项研究中，T。prima和T.