From 1981 through 1983 biological surveys of the Loess Hills were sponsored by the Iowa State Preserves Advisory Board. Twenty-four sites in 7 counties were visited during the first week in June during these years. Collections were made of all macrofungi producing identifiable fruiting structures or represented by recognizable weathered fruiting structures developed the previous fall. Plane parasitic fungi and corticolous lichens were also recorded. Fungi of the Loess Hills of Iowa had been previously documented primarily by Gilman\u27s and Gilman and Archer\u27s reports of plant parasitic fungi. This report includes 3 species of Oomycetes, 18 species of Myxomycetes, 67 species of Ascomycetes, 75 species of Basidiomycetes, 27 species of Fungi Imperfecti (Deuteromycetes) and 15 species of corticolous lichens
