Exobasidium

{{Short description|Genus of fungi}}

{{Automatic taxobox

| image = Exobasidium rhododendri 54465.jpg

| image_caption = Exobasidium rhododendri growing on Rhododendron hirsutum

| taxon = Exobasidium

| authority = Woronin

| type_species = Exobasidium vaccinii

| type_species_authority = (Fuckel) Woronin

| synonyms = Arcticomyces Savile, 1959

| subdivision_ranks = Species

| subdivision = See text

}}

Exobasidium is a genus of fungi in the family Exobasidiaceae. The genus has a widespread distribution, especially in northern temperate regions, and contains about 50 species.{{cite book |vauthors=Kirk PM, Cannon PF, Minter DW, Stalpers JA |title=Dictionary of the Fungi. |url=https://archive.org/details/dictionaryfungit00kirk |url-access=limited |edition=10th |publisher=CABI |location=Wallingford |year=2008|page=[https://archive.org/details/dictionaryfungit00kirk/page/n261 251]|isbn=978-0-85199-826-8}} Many of the species in this genus are plant pathogens that grow on Ericaceae. The comprising fungi are parasitic in nature, especially on various heath plants where they cause galls.{{Cite web|title=Definition of EXOBASIDIUM|url=https://www.merriam-webster.com/dictionary/Exobasidium|access-date=2021-03-10|website=www.merriam-webster.com|language=en}}