ORIGINAL ARTICLE
Thalloidima squamatum comb. nov. - a distinct and common but overlooked lichen in Europe
1
Museum of Evolution, Norbyvägen 16, SE-752 36 Uppsala, Sweden
2
University of Applied Sciences Kaiserslautern, Department Integrative
Biotechnology, Carl-Schurz-Straße 10-16, 66953 Pirmasens, Germany
3
Swedish Museum of Natural History, Department of Botany, P.O. Box
50007, SE-104 05 Stockholm, Sweden
4
Natural History Museum, University of Oslo, P.O. Box 1172 Blindern,
NO-0318 Oslo, Norway
Publication date: 2023-12-29
Plant and Fungal Systematics 2023; 68(2): 353-363
KEYWORDS
ABSTRACT
The new combination Thalloidima squamatum is proposed for a morphologically
and phylogenetically distinct species, until now included within the variation of T. sedifolium.
Compared to T. sedifolium, the species is characterized by its larger squamules and
apothecia, shorter ascospores, the pale color of the excipulum, and its habitat growing on
moss cushions over calcareous rock or directly on rock rather than on soil. Most of the
material studied originates from Norway and Sweden, but specimens are also reported from
Austria, Croatia, Germany, Greenland, Italy, Poland, Russia, Scotland and Switzerland.
FUNDING
The project was funded by the ERA-Net BiodivERsA program as part of the 2010–2011 BiodivERsA joint call, with the national funder the Swedish
Research Council Formas (grant number 226-2011-1795).
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