Maximum likelihood (ML) phylogenetic tree based on a concatenated dataset of ITS, LSU, SSU, and tef-1. In total, 32 strains representing 26 taxa were included in the concatenated dataset, with 3357 characters (ITS 606 bp, LSU 840 bp, SSU 1021 bp, and tef-1 890 bp) including alignment gaps. The tree was rooted with Multiseptospora thailandica MFLUCC 11-0183. MLB ≥ 70% and BPPs ≥ 0.95 were shown at each node; values lower than these thresholds are indicated by a hyphen (–). The scale bar indicates the number of estimated substitutions per site. The strains introduced in this study are in red and novel species are in bold. The ex-type strains are marked with T.