Orthomycotina is a clade of fungi containing Agaricomycotina and Ustilaginomycotina, or all Basidiomycete fungi except Pucciniomycotina according to the 2007 fungal phylogeny[1] "The Mycota: A Comprehensive Treatise on Fungi as Experimental Systems for Basic and Applied Research"[2] and Tedersoo et al. 2018.[3]