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Micarea svetlanae, a new species of the M. prasina group from the Russian Far East

Published online by Cambridge University Press:  25 February 2025

Liudmila A. Konoreva Open the ORCID record for Liudmila A. Konoreva [Opens in a new window] ,
Sergey V. Chesnokov Open the ORCID record for Sergey V. Chesnokov [Opens in a new window]  and
Ivan V. Frolov Open the ORCID record for Ivan V. Frolov [Opens in a new window]
Liudmila A. Konoreva
Affiliation:
Botanical Garden-Institute of the Far Eastern Branch of the Russian Academy of Sciences (RAS), 690024 Vladivostok, Russia Polar-Alpine Botanical Garden-Institute, Kola Science Centre RAS, 184200 Kirovsk, Russia
Sergey V. Chesnokov*
Affiliation:
Botanical Garden-Institute of the Far Eastern Branch of the Russian Academy of Sciences (RAS), 690024 Vladivostok, Russia Komarov Botanical Institute RAS, 197022 St Petersburg, Russia
Ivan V. Frolov
Affiliation:
Botanical Garden-Institute of the Far Eastern Branch of the Russian Academy of Sciences (RAS), 690024 Vladivostok, Russia Institute Botanic Garden of the Ural Branch RAS, 620144 Yekaterinburg, Russia
*
Corresponding author: Sergey V. Chesnokov; Email: lukinbrat@mail.ru
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Abstract

A species new to science, Micarea svetlanae, is described from the southern part of the Russian Far East based on morphological, chemical and molecular data. This species is closely related to M. isidioprasina, which also has the micareic acid, the granular-isidiate thallus with Sedifolia-grey pigment, and crystalline granules in the hymenium and thallus, but differs in the cushion-shaped thallus, the presence of Sedifolia-grey pigment in the hymenium, numerous crystalline granules in the hymenium and hypothecium and 0–2(3)-septate ascospores. The results of the phylogenetic reconstruction place M. svetlanae in the M. prasina group. Morphological features and data on ecology, distribution and secondary metabolites are presented in detail in the paper. This new lichen species is named in honour of the Russian lichenologist Dr Svetlana Tchabanenko, who devoted her life to the study of lichens of the Russian Far East.

Keywords

Asiaisidiate thalluslichensmicareic acidnew taxonPilocarpaceaetaxonomy

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Standard Paper
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The Lichenologist , Volume 57 , Issue 1 , January 2025 , pp. 13 - 24
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Copyright © The Author(s), 2025. Published by Cambridge University Press on behalf of The British Lichen Society

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