Trechisporales emended with a segregation of Sistotremastrales ord. nov. (Basidiomycota)

A new species, new combination, and a nomen novum in the genus Trechispora from India

“…Remarks: The present specimen ts with the species description of S. echinosporus by Corner (1950) and Furtado et al (2021). Although the species should have been considered as belonging to Trechispora according to the synonimization of Scytinopogon with Trechispora based on Liu et al (2022) and Furtado et al (2021), due to the lack of molecular evidence, a formal genus transfer had not yet been done.…”

“…The data set included a total of 94 taxa (Table 1). Eight newly generated ITS sequences and those sequences retrieved from GenBank of 70 representative sequences in the order Trechisporales (following Liu et al 2022), 11 representative sequences in the genus Clavulina (Hydnaceae, Cantherellales) and three representative sequences of the newly segregrated order Sistotrematales, were aligned using MEGA X64 (Kumar et al 2018). Neofavolus alveolaris (DC.)…”

“…Quèl. (Polyporaceae, Polyporales) were chosen as the outgroup taxa, following Liu et al (2022). The tree con rmed the placement of these species in clavarioid clade (clade that had clavarioid taxa) that included T. havencampii, T. termitophila, T. robusta, and Scytinopogon species.…”

Taxonomy of Hyphodermella: a case study to show that simple phylogenies cannot always accurately place species in appropriate genera

“…In Zong et al ( 2021 ), newly describing Trechispora daweishanensis and T. xantha , the first phylogeny did not recover the monophyly of Trechispora with these two species, while the second one simply including taxa only from Trechispora as the ingroup clustered the two species with T. yunnanensis and separated them from additional species of Trechispora . As first noted by Chikowski et al ( 2020 ) and then confirmed by Liu et al ( 2022a ), the ITS and nLSU sequences from specimens of T. yunnanensis (Xu et al 2019 ) actually represent different species from Trechisporales and Hymenochaetales , respectively, and thus the phylogenetic position of T. yunnanensis itself is doubtful. Liu et al ( 2022c ) recognized the incorrect generic placements of T. daweishanensis and T. xantha by Zong et al ( 2021 ), and transferred these two species to Brevicellicium .…”

“…1 ), in which these two species also clustered together with species of Brevicellicium but occupied a separated position. By sampling the most comprehensive range of taxa in Trechisporales available to date, the phylogeny in Liu et al ( 2022a ) clarified these two species placing them outside of both Trechispora and Brevicellicium , and in a new genus, Allotrechispora .…”