Thomas Peer (University of Salzburg). Open AccessThis article is distributed under the terms of the Creative Commons

Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited. Electronic supplementary material Below is the link to the electronic supplementary material. Online Resource 1: Lichen samples used in this study with information on collecting localities, voucher numbers, mycobionts, photobionts and other BLZ945 solubility dmso eukaryotic green micro algae (EGMA) including Genbank accession numbers. Several other specimens are included as well as the specimens directly collected at the four SCIN-investigation sites (DOC 215 kb) Online Resource 2: Phylogeny of ITS sequences of Trebouxia specimens from the 4 SCIN-sites, together with samples from Antarctica, buy AC220 Austria and downloaded sequences from Genbank. The bars beside the phylogeny show the provenance of the specimens in the respective habitats. The bootstrap values with >70 support of MP and ML analyses

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