Gymnosporangium clavipes

Gymnosporangium clavipes is a plant pathogenic fungus that causes cedar-quince rust. Similar to Gymnosporangium juniperi-virginianae and Gymnosporangium globosum, it infects a wide range of Rosaceae such as apple, hawthorn and quince trees, and also requires an evergreen host, such as eastern red cedar or a number of other juniper species, to complete its life cycle. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/