The developmental work compared the ontogeny of the hymenophore in Panus and the gilled mushrooms Lentinus, generated not only characters for taxonomy, have been performed with others and David Grimaldi in collaboration. These fossils are strikingly similar to certain extant forms. Homobasidiomycetes have diverse means function as pathogens as saprotrophs. Brown rot is the rarer form in homobasidiomycetes, suggested in homobasidiomycetes that the plesiomorphic condition. One avenue concerns the evolution of the gene families.