F.K.A.E.J. de Thümen [1-2300, plus extras]

USDA United States National Fungus Collections
Catalog #: BPI 1035533
s.n.
Ustilago carbo (DC.) Tul. & C. Tul.

USDA United States National Fungus Collections
Catalog #: BPI 166370
MAC Owan P. s.n.
Ustilago segetum (Bull.) Roussel
South Africa, Somerset East

University of Illinois Herbarium
Catalog #: ILL00077077
Prof. P. Mac Owan s.n.
Ustilago carbo (DC.) Tul. & C. Tul.

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00087928
Prof. P. Mac Owan s.n.
Ustilago carbo (DC.) Tul. & C. Tul.
England, Promont. Bonae spei.: Somerset-East