Aleurodiscus oakesii

(smooth patch disease)

     
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Type Height Width Season
cup fungus <⅛" to ⅕" year round

Habitat and Hosts:Found on the outer bark of hardwoods, especially oaks, elms, and hop hornbeam, where it creates smooth patches in the bark. While this fungus is a parasite, it sticks to the outer bark of the trees it infests, and does not seriously threaten the health of the tree.