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

University of Illinois Herbarium
Catalog #: ILL00075604
Dr. Morthier s.n.
Xeromphalina campanella (Batsch) Maire
Switzerland, Neuchatel

USDA United States National Fungus Collections
Catalog #: BPI 1034092
s.n.
Agaricus campanella Batsch

University of Nebraska State Museum, C.E. Bessey Herbarium - Fungi
Catalog #: NEB00061139
Dr. Morthier s.n.
Omphalia campanella (Batsch) P. Kumm.
Switzerland, Neuchatel;

USDA United States National Fungus Collections
Catalog #: BPI 757874
Morthier s.n.
Omphalia campanella (Batsch) P. Kumm.
Switzerland, Helvetia

Purdue University, Kriebel Herbarium
Catalog #: PUL00029260
Morthier s.n.
Agaricus omphalia campanella
Helvetia, Neuchatel, Neuchatel;