Thomson, Lich. Arct. [Madison (Wisconsin)]
John Walter Thomson [1 - 115]
IndExs #515968978

University of Tennessee Lichen Herbarium
Catalog #: TENN-L-0001185
J. W. Thomson s.n. 00 August 1958
Cetraria richardsonii Hook.
United States, Alaska, North Slope, Valley of the Okpilak River at Okpilak Lake near Mt. Michelson

University of Michigan Herbarium
Catalog #: 112567
ef04ba88-5dcd-4549-b9a7-1e18de0642c2
J. W. Thomson #s. n.
Masonhalea richardsonii (Hook.) Kärnefelt
United States, Alaska, no data, Valley of the Okpilak River at Okpilak Lake near Mt. Michelson

University of Wisconsin - Madison
Catalog #: WIS-L-0109585
John W. Thomson #s.n. 02 August 1958
Nephromopsis richardsonii (Hook.) Divakar, A. Crespo & Lumbsch
United States, Alaska, North Slope, Northern Alaska, valley of the Okpilak River at Okpilak Lake near Mt Michelson

Lichen Herbarium of the Museum of Evolution, Uppsala University
Catalog #: L-160641
John W. Thomson & S. Shushan s.n. 02 August 1958
Masonhalea richardsonii (Hook.) Kärnefelt
United States, Alaska, Northern Alaska, valley of the Okpilak River at Okpilak Lake near Mt Michelson

University of Cincinnati, Margaret H. Fulford Herbarium - Lichens
Catalog #: CINC-L-0000811
Thomson, J.W. #s.n. 02 August 1958
Masonhalea richardsonii (Hook.) Kärnefelt
United States, Alaska, North Slope, Valley of the Okpilak River at Okpilak Lake near Mt. Michelson

Duke University Herbarium Lichen Collection
Catalog #: 299138
0ff37dbe-1b57-4912-8402-04d2b929b358
Thomson, John, W.; Shushan, Sam #s.n. 00 August 1958
Masonhalea richardsonii (Hook.) Kärnefelt
United States, Alaska, North Slope Co., Valley of the Okpilak River at Okpilak Lake near Mount Michelson