Meliolales was introduced by Hawksworth & Eriksson (1986) accommodating a single family Meliolaceae. Hosagoudar (2003) introduced Armatellaceae as a new family in this order based on the morphology. Lumbsch & Huhndorf (2010) placed Meliolales in the class Sordariomycetes. This was confirmed and followed by Hongsanan et al. (2015, 2017) and Maharachchikumbura et al. (2016b). Hongsanan et al. (2015) provided a recent monograph that reappraised the genera of Meliolales. Zeng et al. (2017) provided a checklist for identifying Meliolales species, including current names of host plants with their corresponding Meliolales species. Currently, Meliolales comprises two families, viz. Armatellaceae and Meliolaceae, but sequence data is only available for Meliolaceae. The phylogenetic relationship of Meliolaceae in the current study is different from Hongsanan et al. (2015) and Zeng et al. (2018) with regards to the position of Irenopsis, which is sister to the main Meliola clade (Fig. 19). All recent studies indicated that Meliola is polyphyletic and the clade including some Meliola species clusters in the Appendiculella and Asteridiella lineages with low bootstrap support. The divergence time for Meliolales is estimated as 219 MYA (Fig. 2). Currently there are two families and nine genera in this order (Hyde et al. 2020).