Thomson: Lich. Wiscon. Exs.
John Walter Thomson, Jr. [1 - 96 [? 108 Uppsala]]

University of Michigan Herbarium
Catalog #: 122745
J. W. Thomson #s. n. 09 August 1946
Platismatia tuckermanii W.L. Culb. & C. F. Culb.
United States, Wisconsin, Douglas, Brule River valley

Arizona State University Lichen Herbarium
Catalog #: 527655
J.W. Thomson s.n. 09 August 1946
Cetraria atlantica (Tuck.) Du Rietz
USA, Wisconsin, Douglas, Brule River valley, T45N R11W Sec. 3

University of Colorado, Museum of Natural History Herbarium Lichen Collection
Catalog #: COLO-L-0035929
John W. Thomson #S 4399 09 August 1946
Platismatia tuckermanii W.L. Culb. & C. F. Culb.
United States, Wisconsin, Douglas, Brule River valley

University of Wisconsin - Madison
Catalog #: WIS-L-0000505
John W. Thomson #s.n. 09 August 1946
Platismatia tuckermanii W.L. Culb. & C. F. Culb.
United States, Wisconsin, Douglas, Brule River Valley

Uppsala University Exsiccati
Catalog #: L-525583
John W. Thomson Jr s.n. 09 August 1946
Platismatia tuckermanii W.L. Culb. & C. F. Culb.
United States, Wisconsin, Douglas, Brule River valley