Puccinia difformis [Descriptions of Fungi and Bacteria].

A description is provided for found on leaves of . Some information on its taxonomy, morphology, associated organisms, habitats, dispersal and transmission and conservation status are given, along with details of its geographical distribution (Algeria, Kenya, Uganda, Zambia, Republic of Georgia, Iran, Iraq, Israel, Japan, Kazakhstan, Kyrgyzstan, Pakistan, Turkey, Portugal (Azores), Spain (Canary Islands), Guatemala, Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Irish Republic, Isle of Man, Italy, Latvia, Netherlands, Norway, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, Sweden, Switzerland, Ukraine, UK, Canada (British Columbia, Ontario), Mexico, USA (California, Idaho, Illinois, Indiana, Iowa, Kansas, Louisiana, Michigan, Missouri, Montana, North Carolina, North Dakota, Ohio, Oregon, South Dakota, Tennessee, Washington, West Virginia, Wisconsin) and Chile) and hosts (species of , primarily , and other genera within the Rubiaceae).