Aecidium magellanicum

Aecidium magellanicum
Calafate rust growing on the shrub Beriberis microphylla in Chile.
Scientific classification
Kingdom: Fungi
Subkingdom: Dikarya
Division: Basidiomycota
Class: Pucciniomycetes
Order: Pucciniales
Family: Incertae sedis
Genus: Aecidium
Species: A. magellanicum
Binomial name
Aecidium magellanicum
Berk. (1847)

Aecidium magellanicum, commonly known as the calafate rust, is a species of rust fungi. This fungus can cause a growth defect known as a witches broom, an excessive growth of stems from a single point on a branch. The species is known to infect the evergreen shrub Berberis buxifolia in Argentina and Chile.[1]

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