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Gymnosporangium juniperi-virginianae
This is a plant pathogen that causes cedar-apple rust. On Eastern Red Cedar hosts, the fungus produces galls with small, circular depressions.
Growing on host trees along a nature path at Meigs Point at Hammonnasset Beach State Park.
2 Comments
Thanks Mark
This (and the host) looks very much like https://commons.wikimedia.org/wiki/File:...