F.K.A.E.J. de Thümen [1-2300, plus extras]
USDA United States National Fungus Collections
s.n.
Tuber excavatum Vittad.
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University of Illinois Herbarium
Dr. Schroter s.n.
Tuber excavatum Vittad.
Germany, Rastatt
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University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Dr. Schroter s.n.
Tuber excavatum Vittad.
Germany, Badenia: Rastadt
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USDA United States National Fungus Collections
Schroeter s.n.
Tuber excavatum Vittad.
Unknown, Badenia, Rastadt
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