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

University of Illinois Herbarium
Catalog #: ILL00085284
s.n.
Microsphaeria friesii

University of Nebraska State Museum, C.E. Bessey Herbarium
Catalog #: NEB00059775
H. W. Ravenel s.n.
Microsphaera friesii Lév.
United States, South Carolina, Aiken, Aiken;