Atractosporales H. Zhang, K.D. Hyde & Maharachch., Fungal Divers. 85: 88 (2017)

Index Fungorum Number: IF553756
Atractosporales was introduced to resolve the taxonomic problems of annulatascaceae-like taxa previously placed in Annulatascaceae and Sordariomycetes genera incertae sedis. Three families (viz. Atractosporaceae, Conlariaceae, and Pseudoproboscisporaceae) were included in the order by Zhang et al. (2017a). The monophyly of this order is not well-supported in previous studies (Luo et al. 2019) and in this study. Luo et al. (2019) showed that Junewangiaceae and Cancellidium also clustered in Atractosporales and this agrees with our phylogenetic analyses, but with low bootstrap support. We, therefore, retain Cancellidium (Tubaki 1975) as Sordariomycetes genera incertae sedis. This ambiguous group may be included in this order with larger taxon sampling in future phylogenetic analyses. The divergence time for Atractosporales has been estimated as 106 MYA, which falls in the range for family status. The status of Atractosporales members may therefore need revision following further study. Currently, there are three families and six genera in this order.