Nine Micarea species new to Canada including five species new to North America

Abstract

Abstract: Konoreva, L. A., Chesnokov, S. V., Stepanchikova, I. S., Spribille, T., Björk, C. & Williston, P. 2021. Nine Micarea species new to Canada including five species new to North America. – Herzogia 34: 18 –37. Nine species of the genus Micarea are reported for the first time from Canada including five (M. contexta, M. fallax, M. pseudomicrococca, M. pusilla, M. tomentosa) which are new to North America. Most of them are part of the Micarea prasina complex. Canadian records of further rare or taxonomically challenging species (M. botryoides, M. inopinula, M. prasina s. str.) are revised. The Canadian records are discussed in the context of their wider distribution, and differences to related or morphologically similar species are indicated.