A.B. Seymour and F.S. Earle [1-550, plus extras]
University of Michigan Herbarium
J. G. Jack #s. n. 23 September 1892
Melampsora betulina G. Winter
USA, Massachusetts, Arnold Arboretum, Jamaica Plain.
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Louisiana State University, Bernard Lowy Mycological Herbarium
John G. Jack #s.n. 23 September 1892
Melampsora betulina G. Winter
United States, Massachusetts, Suffolk, Arnold Arboretum, Jamaica Plain
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