During the years 1897 to 1905 the writer did considerable collecting of botanical material in Decatur County, Iowa. Parasitic fungi were included and the following list is based largely on the material collected at that time. The list is far from complete. There is still some unidentified material on hand, and no special effort was made to have the collection complete originally, as the phanerogams were the special group sought. Specimens of most of the species here enumerated are deposited in the herbarium at Iowa State College. Some of the diseases of economic plants, however, are based on notes and observations, no specimens being collected
