Atractiellomycetes  The Atractiellomycetes are class of fungi in the Pucciniomycotina subdivision of the Basidiomycota. The class consists of a single order, the Atractiellales, which contains 3 families, 10 genera, and 34 species. "Leucogloea" and "Hobsonia" are genera incertae sedis with respect to familial placement.