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Konoreva, L. A., Chesnokov, S. V., Stepanchikova, I. S., Spribille, T., Bjork, 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.

Holien, H., Palice, Z., Bjork, C. R., Goward, T. & Spribille, T. 2016. Lecidea coriacea sp. nov., a lichen species from oldgrowth boreal and montane forests in Europe and North America. — Herzogia 29: 412–420. Lecidea coriacea is described as new to science from the boreal forests of Europe and montane conifer forests of northwestern North America. It is probably related to some of the species currently assigned to the genus Puttea, but is included in Lecidea awaiting a more thorough revision of this group. The species is characterized by pale to dark brown apothecia, plusiosporic asci and by the production of secalonic acid A in the hypothecium causing a golden yellow reaction with KOH. Lecidea coriacea seems to be a species of oldgrowth forests and is threatened by forestry. It often grows on old trees of Betula, Picea and Salix or on old conifer snags. Notes on similar species and other plusiosporic epiphytic and lignicolous species in boreal forests are given.

Grube, M., Obermayer, W., Mayrhofer, H. & Spribille, T. 2016. Josef Hafellner — a life amongst lichens and their parasites. — Herzogia 29: 213–234. The impact of Josef Hafellners scientific work on the systematics of lichenized ascomycetes and on the knowledge on lichenicolous fungi is discussed and the value of his extensive collections (c. 100,000 lichens including c. 8,000 lichenicolous fungi) is highlighted. A bibliography (1975–2016) is presented.

New records, range extensions and nomenclatural innovations for lichens and lichenicolous fungi from Alaska, U.S.A. - Herzogia 25: 177-210. Surveys of lichens and lichenicolous fungi have been taki ...

Sheard, J. W., Lendemer, J. C., Spribille, T., Thor, G. & Tonsberg, T. 2012. Further contributions to the genus Rinodina (Physciaceae, Lecanoromycetidae): two species new to science and a new record for the Canadian High Arctic. — Herzogia 25: 125–143. Two species of Rinodina are described as new to science (R. buckii and R. bullata) and a third is reported for the first time from arctic Canada (R. ochracea). Rinodina buckii, a sorediate species that resembles R. willeyi is described from disjunct localities in East Asia and the Appalachian Mountains of eastern North America. Rinodina bullata, a species with a peculiar minutely areolate thallus that is frequently sterile, is described from the central Appalachian Mountains of eastern North America. Rinodina ochracea, originally described from Greenland, is reported from the Northwest Territories in Canada. The newly described species are illustrated with both colour light micrographs (CLMs) and scanning electron micrographs (SEMs), and maps of t...

Helmut Mayrhofer has been contributing to understanding the systematics and diversity of lichenized fungi for over four decades. In this paper introducing a Festschrift on the occasion of his 65th birthday, we review the impact of Helmut Mayrhofer's scientific work on the systematics of lichenized fungi with special emphasis on the family Physciaceae and highlight his studies of the lichen flora of the Balkan Peninsula, the Alps and other regions. We also present a bibliography of his publications from 1973 to the present.