Arizona State University Lichen Herbarium
E. Frey s.n. 01 August 1958
Umbilicaria ruebeliana (Du Rietz & Frey) Frey
Switzerland, Graubünden, Bernina-Gruppe, Bernina-Pass - Locus classicus!
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Lichen Herbarium of the Museum of Evolution, Uppsala University
E. Frey s.n. 00 August 1959
Umbilicaria ruebeliana (Du Rietz & Frey) Frey
Switzerland, Graubünden, Bernina-Pass
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Brigham Young University
E. Frey s.n. 00 August 1958
UMBILICARIA RUEBELIANA (Du Rietz & Frey) Frey
Switzerland, Graubunden, Bernina-Gruppe: Bernina-Pab, 2350m, Gneis-Frontalflache in SSO-Exposition - Locus classicus
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University of Wisconsin - Madison
E. Frey #s.n. 01 August 1958
Umbilicaria ruebeliana (Du Rietz & Frey) Frey
Switzerland, Graubünden, Bernina-Gruppe, Bernina-Pass -
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