Thomson: Lich. Arct.
John Walter Thomson [1 - 115]

University of Michigan Herbarium
Catalog #: 127744
J. W. Thomson #s. n. 02 August 1958
Squamarina lentigera (Weber) Poelt
United States, Alaska, North Slope, Valley of the Okpilak River at Okpilak Lake near Mt. Michelson

University of Colorado, Museum of Natural History Herbarium Lichen Collection
Catalog #: COLO-L-0042176
John W. Thomson #L 41915 02 August 1958
Squamarina nivalis Frey & Poelt
United States, Alaska, North Slope, valley of the Okpilak River at Okpilak Lake near Mt. Michelson

University of Wisconsin - Madison
Catalog #: WIS-L-0109580
John W. Thomson #s.n. 02 August 1958
Squamarina lentigera (Weber) Poelt
United States, Alaska, North Slope, Northern Alaska, valley of the Okpilak River at Okpilak Lake near Mt Michelson

Uppsala University Exsiccati
Catalog #: L-160637
John W. Thomson & S. Shushan s.n. 02 August 1958
Squamarina lentigera (Weber) Poelt
Canada, Northwest Territories, Northern Alaska, valley of the Okpilak River at Okpilak Lake near Mt Michelson

Duke University Herbarium Lichen Collection
Catalog #: 0305050
Thomson Jr., John W. #s.n. 00 August 1958
Squamarina lentigera (Weber) Poelt
United States, Alaska, North Slope, Valley of the Okpilak River at Okpilak Lake near Mount Mlchelson