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

University of Michigan Herbarium
Catalog #: 73848
J. W. Thomson #s. n. 16 April 1946
Acarospora cinereoalba (Fink) H. Magn.
United States, Wisconsin, Dane, 2 miles southeast of Madison

University of Colorado, Museum of Natural History Herbarium Lichen Collection
Catalog #: COLO-L-0001075
J. W. Thomson #s.n. 16 April 1946
Acarospora strigata (Nyl.) Jatta
United States, Wisconsin, Dane, 2 miles southeast of Madison

Arizona State University Lichen Herbarium
Catalog #: ASUL000386
J.W. Thomson s.n. 16 April 1946
Acarospora strigata (Nyl.) Jatta
USA, Wisconsin, Dane, 3.2 km SE of Madison, T7N R9E Sec. 31

University Herbarium, University of California, Berkeley
Catalog #: UC1938863
John W. Thomson s.n. 16 April 1946
Acarospora strigata (Nyl.) Jatta
United States, Wisconsin, Dane, 3.2 km SE of Madison. T.7N., R.9E., Sec.31

University of Wisconsin - Madison
Catalog #: WIS-L-0111594
John W. Thomson #s.n.
Acarospora cinereoalba (Fink) H. Magn.
United States, Wisconsin, Dane, 2 miles southeast of Madison

Uppsala University Exsiccati
Catalog #: L-525484
John W. Thomson, Jr s.n. 16 April 1946
Acarospora cinereoalba (Fink) H. Magn.
United States, Wisconsin, Dane, 2 miles southeast of Madison, Dane Co