James, PW 1979: Notes on Usnea rubiginea and U. rubicunda. - Lichenologist11: 322-323. [RLL List # 105-43 / Rec.# 9303] Keywords: USNEA/ NOMENCLATURE
Abstract: [Usnea rubicunda Stirton is recognized as the correct anem for plants previously called U. sublurida, U. rubrotincta, U. portentosa and U. rubescens.]
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