Towards incorporating asexual fungi in a natural classification: checklist and notes 2012–2016

Abstract

Incorporating asexual genera in a natural classification system and proposing one name for pleomorphic genera are important topics in the current era of mycology. Recently, several polyphyletic genera have been restricted to a single family, linked with a single sexual morph or spilt into several unrelated genera. Thus, updating existing data bases and check lists is essential to stay abreast of these recent advanes. In this paper, we update the existing outline of asexual genera and provide taxonomic notes for asexual genera which have been introduced since 2012. Approximately, 320 genera have been reported or linked with a sexual morph, but most genera lack sexual morphs.

New species in Dictyosporium, new combinations in Dictyocheirospora and an updated backbone tree for Dictyosporiaceae

“…Dictyosporiaceae accommodates a holomorphic group of Dothideomycetes, including 12 genera with nine being dictyosporous (Wijayawardene et al 2017b, Wijayawardene et al 2018). Dictyocheirospora and Dictyosporium are the two largest genera in the family.…”

Evolution of lifestyles in Capnodiales

“…Diverse lifestyles are found amongst the Dothideomycetes including epiphytes, endophytes, saprobes, plant and animal pathogens, mycoparasites, mycorrhizal, lichenised and rock-inhabiting fungi ( Schoch et al., 2009 , Schoch and Grube, 2015 , Ametrano et al., 2019 ). The Dothideomycetes is divided into two subclasses, Pleosporomycetidae and Dothideomycetidae, and some incertae sedis lineages, accommodating more than 25 orders, 110 families and over 19 000 species, thereby representing the largest class of Ascomycota ( Schoch et al., 2009 , Hyde et al., 2013 , Jaklitsch et al., 2015 , Schoch and Grube, 2015 , Van Nieuwenhuijzen et al., 2016 , Bezerra et al., 2017 , Videira et al., 2017 , Wijayawardene et al, 2017 ). Morphologically they are mostly characterised by ascostromatic development and bitunicate asci with fissitunicate dehiscence ( Schoch & Grube 2015 ).…”

Pseudobactrodesmium (Dactylosporaceae, Eurotiomycetes, Fungi) a Novel Lignicolous Genus

“…Bactrodesmium is distributed worldwide with more than 48 species (Wijayawardene et al, 2017a; Index Fungorum database 1 ). It was regarded as a member of Dothideomycetes based on the sexual-asexual morph connection between Bactrodesmium obliquum and Stuartella suttonii (Funk and Shoemaker, 1983;Wijayawardene et al, 2017b). However, with molecular evidence, Bactrodesmium was shown to be polyphyletic, as B. gabretae clustered within Helotiales, Leotiomycetes (Koukol and Kolárová, 2010), B. cubense had affinities to Morosphaeriaceae, Dothideomycetes (Hernández-Restrepo et al, 2017) and B. pallidum clustered in Savoryellaceae, Sordariomycetes (Hernández-Restrepo et al, 2017).…”