The family Stachybotriaceae was recently introduced to include the genera Myrothecium, Peethambara and Stachybotrys. Members of this family include important plant and human pathogens, as well as several species used in industrial and commercial applications as biodegraders and biocontrol agents. However, the generic boundaries in Stachybotriaceae are still poorly defined, as type material and sequence data are not readily available for taxonomic studies. To address this issue, we performed multi-locus phylogenetic analyses using partial gene sequences of the 28S large subunit (LSU), the internal transcribed spacer regions and intervening 5.8S nrRNA (ITS), the RNA polymerase II second largest subunit (rpb2), calmodulin (cmdA), translation elongation factor 1-alpha (tef1) and β-tubulin (tub2) for all available type and authentic strains. Supported by morphological characters these data resolved 33 genera in the Stachybotriaceae. These included the nine already established genera Albosynnema, Alfaria, Didymostilbe, Myrothecium, Parasarcopodium, Peethambara, Septomyrothecium, Stachybotrys and Xepicula. At the same time the generic names Melanopsamma, Memnoniella and Virgatospora were resurrected. Phylogenetic inference further showed that both the genera Myrothecium and Stachybotrys are polyphyletic resulting in the introduction of 13 new genera with myrothecium-like morphology and eight new genera with stachybotrys-like morphology.

CBS KNAW Fungal Biodiversity Centre Uppsalalaan 8 3584 CT Utrecht The Netherlands;

CBS KNAW Fungal Biodiversity Centre Uppsalalaan 8 3584 CT Utrecht The Netherlands;; Forestry and Agricultural Biotechnology Institute University of Pretoria Pretoria 0002 South Africa ; Microbiology Department of Biology Utrecht University Padualaan 8 3584 CH Utrecht The Netherlands ; Wageningen University and Research Centre Laboratory of Phytopathology Droevendaalsesteeg 1 6708 PB Wageningen The Netherlands

Department of Taxonomy Institute of Botany of the Academy of Sciences CZ 252 43 Prùhonice Czech Republic

Mycothèque de l'Université catholique de Louvain Université catholique de Louvain Croix du Sud 2 bte L7 05 06 B 1348 Louvain la Neuve Belgium

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Fungal Planet description sheets: 1697-1780

Fungal Planet description sheets: 1478-1549

Fungal Planet description sheets: 1284-1382

Fungal Planet description sheets: 1182-1283

Fusarium: more than a node or a foot-shaped basal cell

Fungal Planet description sheets: 1112-1181

Fungal Planet description sheets: 716-784

Fungal Systematics and Evolution: FUSE 3

Fungal Planet description sheets: 625-715