Thomson, JW 1969: A Catalogue of Lichens of the State of Washington. - Department of Botany, University of Wisconsin, Madison. 59 pp. [RLL List # 71 / Rec.# 18479] Keywords: WASHINGTON/ CATALOG/ IBC
Abstract: [Privately published brochure listing all lichens reported from the state of Washington, for the information of participants in the lichenological field trip in connection with the XI International Botanical Congress in Seattle.]