About Endothia gyrosa (Schwein.) Fr., 1866
Endothia gyrosa, commonly known as orange hobnail canker, is a species of sac fungus belonging to the family Cryphonectriaceae. It is the type species of the genus Endothia. This species was previously classified under the genus Melogramma, but phylogenetic analyses have now confirmed that it is an independent species. It has been recorded growing on a range of host genera in North America, including Quercus, Fagus, Liquidambar, Acer, Ilex, Vitis, and Prunus.