Phylogenetic relationships amongst available species in the genus Pyrenodesmia , based on a Maximum Likelihood analysis of the dataset of the nuclear large subunit ribosomal RNA (LSU) sequences. The tree was rooted with three sequences of the genera Lendemeriella and Usnochroma. Maximum Likelihood bootstrap values ≥ 70% and posterior probabilities ≥ 95% are shown above internal branches. Branches with bootstrap values ≥ 90% are shown in bold. The new species Pyrenodesmia rugosa is presented in bold and all species names are followed by the GenBank accession numbers. Reference Table 1 provides the species related to the specific GenBank accession numbers and voucher information.