Cladonia homosekikaica Nuno new to Sweden : a cup lichen found in the grey dunes of Gotland

While sampling the vegetation of the semi-natural grasslands with the EDGG standard methodology on the Swedish island of Gotland, the terricolous lichen species Cladonia homosekikaica Nuno from the C. pyxidata-chlorophaea complex was found in 2022. This is the first record of this species from Swede...

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Bibliographic Details
Main Authors: Boch, Steffen, Dembicz, Iwona, Keller, Christine, Dengler, Jürgen
Format: Article in Journal/Newspaper
Language:English
Published: Eurasian Dry Grassland Group (EDGG) 2024
Subjects:
Chemotype
Cladonia homosekikaica
Cladonia pyxidata-chlorophaea complex
Festucetum polesicae
First record
Gotland
Grey dune
Koelerion glaucae
Sandy grassland
Sweden
info:eu-repo/classification/ddc/333.7
info:eu-repo/classification/ddc/580
Iceland
Online Access:https://hdl.handle.net/11475/31058
https://doi.org/10.21570/EDGG.PG.61.14-17
https://doi.org/10.21256/zhaw-31058
https://digitalcollection.zhaw.ch/handle/11475/31058
Description
Summary:While sampling the vegetation of the semi-natural grasslands with the EDGG standard methodology on the Swedish island of Gotland, the terricolous lichen species Cladonia homosekikaica Nuno from the C. pyxidata-chlorophaea complex was found in 2022. This is the first record of this species from Sweden. We provide here detailed information on its differentiation from similar Cladonia species, characterize its overall distribution and its site conditions on Gotland. The new locality is far away from the next occurrences, which are mainly in southern Europe, with isolated records in Iceland and Finland. The vegetation type was a nutrient-poor sandy grassland near the coast, belonging to the association Festucetum polesicae (alliance: Koelerion glaucae, order: Sedo acris-Festucetalia, class: KoelerioCorynephoretea canescentis). The overall distribution of Cladonia homosekikaica indicates that the species is slightly xero-thermophilous and occurs in slightly acidic grasslands. It thus might be found in other sandy dry grasslands around the Baltic Sea.

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