C. Roumeguere [1-7400]

USDA United States National Fungus Collections
Catalog #: BPI 1013371
s.n.
Chondrioderma difforme (Pers.) Rostaf.

University of Illinois Herbarium
Catalog #: ILL00220909
F. Fautrey s.n.
Chondrioderma difforme f. ulmi
France