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Common Tarcrust

Diatrype stigma


Black crust fungus with an upper surface covered in small small dots. These small dots are the tops of structures called perithecia. Perithecia are pore-like or flask-shaped structures through which spores are released. The texture of this surface is leathery and smooth. The edge of the fungus is orange to cinnamon brown. Diatrype stigma is a saprobic fungus usually found on hardwoods. It has a preference for beech trees. It belongs to the Xylariales order and the Diatrypaceae family.


On a downed hardwood branch at the top of a ridge in a mixed hardwood/coniferous forest in Northwest Georgia (Gordon County), US.

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Spotted by

Georgia, USA

Lat: 34.58, Long: -84.69

Spotted on Dec 2, 2017
Submitted on Dec 4, 2017

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