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

University of Michigan Herbarium
Catalog #: 109508
J. W. Thomson #s. n. 23 May 1946
Lecidea friesii Ach.
United States, Wisconsin, Oneida, 17 miles west of Woodruff

Arizona State University Lichen Herbarium
Catalog #: 527845
J.W. Thomson s.n. 23 May 1946
Hypocenomyce M. Choisy
USA, Wisconsin, Oneida, 27.4 km W of Woodruff, T39N R4E Sec. 6

University of Colorado, Museum of Natural History Herbarium Lichen Collection
Catalog #: COLO-L-0018808
John W. Thomson #S 4461 23 May 1946
Xylopsora friesii (Ach.) Bendiksby & Timdal
United States, Wisconsin, Oneida, 17 mi W of Woodruff

University of Wisconsin - Madison
Catalog #: WIS-L-0000436
John W. Thomson #s.n. 23 May 1946
Xylopsora friesii (Ach.) Bendiksby & Timdal
United States, Wisconsin, Oneida, 17 mi W of Woodruff

Uppsala University Exsiccati
Catalog #: L-525551
John W. Thomson, Jr s.n. 23 May 1946
Lecidea friesii Ach.
United States, Wisconsin, Oneida, 17 miles west of Woodruff, Oneida Co

Duke University Herbarium Lichen Collection
Catalog #: 224232
Thomson, John W. #s.n. 23 May 1946
Xylopsora friesii (Ach.) Bendiksby & Timdal
United States, Wisconsin, Oneida, 17 mi W of Woodruff