Maryland Biodiversity Project

Exobasidium sp. Exobasidium sp.

Synonyms: Azalea Leaf Fungus, Cylindrosporium deformans, Exobasidium vaccinii (misapplied), Exobasidium vaccinii var. vaccinii (misapplied).

Kingdom Fungi > Phylum Basidiomycota > Class Exobasidiomycetes > Order Exobasidiales > Family Exobasidiaceae > Genus Exobasidium Exobasidium sp. - Exobasidium sp. - https://www.marylandbiodiversity.com/view/21466

Status:

Some studies have suggested that species of Exobasidium are host-specific and limited to closely-related host species. One of the most widely reported Exobasidium species in Maryland is Exobasidium vaccinii. However, the current hypothesis is that Exobasidium vaccinii may only occur on Vaccinium vitis-idaea (GallFormers.org) which is not known from Maryland. It is not yet clear which species of Exobasidium occur in Maryland.

Exobasidium on Pinxter Azalea has been referred to Exobasidium azaleae.

Exobasidium oxycocci which occurs on Vaccinium oxycoccus and closely-related species may also occur in Maryland.

Records:

There are 58 records in the project database.

Links:

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Seasonality:

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An Azalea Gall growing on Swamp Azalea in Garrett Co., Maryland (6/9/2013). This gall looking fungus grows exclusively on azaleas. (Photo ID: 6325 - Psn: 10)

An Azalea Gall growing on Swamp Azalea in Garrett Co., Maryland (6/9/2013). This gall looking fungus grows exclusively on azaleas. Photo by Jim Brighton. (MBP list)

An Azalea Gall in Garrett Co., Maryland (6/9/2013). (Photo ID: 6326 - Psn: 20)

An Azalea Gall in Garrett Co., Maryland (6/9/2013). Photo by Jim Brighton. (MBP list)

An Azalea Gall growing on Swamp Azalea in Caroline Co., Maryland (6/16/2013). (Photo ID: 6481 - Psn: 30)

An Azalea Gall growing on Swamp Azalea in Caroline Co., Maryland (6/16/2013). Photo by Jim Brighton. (MBP list)

Cowberry Redleaf in Prince George's Co., Maryland (5/11/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 378013 - Psn: 40)

Cowberry Redleaf in Prince George's Co., Maryland (5/11/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). Photo by Matthew Beziat. (MBP list)

Cowberry Redleaf in Prince George's Co., Maryland (5/8/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 375740 - Psn: 45)

Cowberry Redleaf in Prince George's Co., Maryland (5/8/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). Photo by Matthew Beziat. (MBP list)

Cowberry Redleaf in Anne Arundel Co., Maryland (5/29/2020). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 351281 - Psn: 55)

Cowberry Redleaf in Anne Arundel Co., Maryland (5/29/2020). (c) Matthew Beziat, some rights reserved (CC BY-NC). Photo by Matthew Beziat. (MBP list)

Azalea Gall on Swamp Azalea in Caroline Co., Maryland (6/24/2017). (Photo ID: 80906 - Psn: 65)

Azalea Gall on Swamp Azalea in Caroline Co., Maryland (6/24/2017). Photo by Bill Hubick. (MBP list)

Cowberry Redleaf in Baltimore Co., Maryland (5/19/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 381134 - Psn: 200)

Cowberry Redleaf in Baltimore Co., Maryland (5/19/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). Photo by Matthew Beziat. (MBP list)

Cowberry Redleaf in Anne Arundel Co., Maryland (5/22/2021). (c) Matthew Beziat, some rights reserved (<a rel='license' href='http://creativecommons.org/licenses/by-nc/4.0/'>CC BY-NC</a>). (Photo ID: 382457 - Psn: 200)

Cowberry Redleaf in Anne Arundel Co., Maryland (5/22/2021). (c) Matthew Beziat, some rights reserved (CC BY-NC). Photo by Matthew Beziat. (MBP list)

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