Aecidium

Aecidium
Aecidium magellanicum growing on the bush Berberis microphylla
Scientific classification
Domain: Eukaryota
Kingdom: Fungi
Division: Basidiomycota
Class: Pucciniomycetes
Order: Pucciniales
Family: incertae sedis
Genus: Aecidium
Type species
Aecidium berberidis
Pers. ex J.F.Gmel. (1792)
Synonyms

Hypodermium subgen. Aecidium (Pers.) Link (1816)
Symperidium Klotzsch (1843)

Aecidium is a genus of rust fungi in the order Pucciniales.

The widespread genus was estimated to contain about 600 species in 2008. As of 27 August 2023, the GBIF lists up to 947 species, while Species Fungorum lists about 816 species (out of 1251 records). About 800 species are accepted by Wijayawardene et al. 2020.