F.K.A.E.J. de Thümen [1-750, plus extras]

University of Illinois Herbarium
Catalog #: ILL00085312
s.n.
Phoma concentricum

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00063268
Ch. B. Plowright s.n. 00 February 1877
Phoma concentricum
England, Norfolk, Kings Lynn;