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Small(1-3mm diameter), neon yellow disc-shaped fungi growing in a group on a rotting log. Cups attach to wood via a very short tapering stem. Bisporella citrina belongs to the family Helotiaceae within the Ascomycota division of fungi. Ascomycetes are also known as sac fungi and are characterized by sexual (spore-bearing) structures called asci.
Growing under the bark of a rotting log in a dense mixed hardwood/coniferous forest in Northwest Georgia (Gordon County), US.