Thomson, Lich. Wiscon. Exs. [Madison (Wisconsin)]
John Walter Thomson, Jr. [1 - 96 [? 108 Uppsala]]
IndExs #165012480

University of Colorado, Museum of Natural History Herbarium Lichen Collection
Catalog #: COLO-L-0001950
J. W. Thomson #10
Chrysothrix caesia (Flot.) Ertz & Tehler
United States, Wisconsin, Dane, Plot 43:5 University Arboretum, Madison

University of Michigan Herbarium
Catalog #: 74728
00e6c010-8fdb-4dd2-8114-c38bcde9aab9
J. W. Thomson #s. n. 16 April 1946
Arthonia caesia (Flotow) Körb.
United States, Wisconsin, Dane, Madison, Plot 43:5 University Arborterum

Arizona State University Lichen Herbarium
Catalog #:
J.W. Thomson s.n. 16 April 1946
Allarthonia caesia Flot.
United States, Wisconsin, Dane, Plot 43:5 University Arboretum, Madison

University of California Berkeley, University Herbarium
Catalog #: UC1893317
89534f15-0167-443b-aad7-f731489b886d
John W. Thomson #s.n. 16 April 1946
Arthrosporum populorum A. Massal.
United States, Wisconsin, Dane, Plot 43:5 University Arboretum, Madison.

University of Wisconsin - Madison
Catalog #: WIS-L-0111593
John W. Thomson #s.n. 16 April 1946
Allarthonia caesia Flot.
United States, Wisconsin, Dane, Plot 43:5 University Arboretum, Madison

Lichen Herbarium of the Museum of Evolution, Uppsala University
Catalog #: L-525483
John W. Thomson, Jr s.n. 16 April 1946
Arthonia caesia (Flotow) Körb.
United States, Wisconsin, Dane, Plot 43:5 University arboretum, Madison, Dane Co

Duke University Herbarium Lichen Collection
Catalog #: 216304
a4a7733e-12ab-4133-9a18-0613305ab985
Thomson, John, W. #s.n. 16 April 1946
Chrysothrix caesia (Flot.) Ertz & Tehler
United States, Wisconsin, Dane Co., University Arboretum, Madison