Figure 2.

Phylogenetic analysis based on the combined nucLSU and nucSSU sequences of Arthoniomycetes, using Dothideomycetes as an outgroup. The data for taxa retrieved from GenBank are reported in the Supplementary Table S1 and the different samples of the same species are identified by a numeration in parenthesis after the genus/species name. The maximum likelihood and Bayesian topology are fully consistent. The newly identified lineage of Antarctolichenia is highlighted by reporting the strain numbers in bold. The type species included in the analyses are marked by an asterisk and a T (*T). Bayesian posterior probabilities (PP) are reported above the branches and the thickness of the branches highlights those receiving a full ML bootstrap support of 96–100%. The scale bar is proportional to the substitution rate.