Bayesian inference tree obtained by phylogenetic analysis using a combined data set of ITS, mtSSU and nLSU sequences of 27 members of Acarosporaceae. Bayesian posterior probability (BPP ≥ 0.95) and maximum likelihood bootstrap values (ML ≥ 70%) are indicated above branches (BPP/ML). Pycnora sorophora was used as outgroup. In bold are species with IKI+ blue asci. The remaining species of Trimmathelopsis not in bold have IKI- asci.