Gymnosporangium clavipes

Gymnosporangium clavipes is a plant pathogen, a fungus that causes cedar-quince rust. Similar to Gymnosporangium juniperi-virginianae and Gymnosporangium globosum, the fungus 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.^[1]

Gymnosporangium clavipes
A cedar-quince rust canker on a hawthorn branch
Scientific classification
Domain:	Eukaryota
Kingdom:	Fungi
Division:	Basidiomycota
Class:	Pucciniomycetes
Order:	Pucciniales
Family:	Gymnosporangiaceae
Genus:	Gymnosporangium
Species:	G. clavipes
Binomial name
Gymnosporangium clavipes Cooke & Peck, (1873)
Synonyms
Gymnosporangium germinale F. Kern, (1908)