The maximum likelihood tree showing the phylogenetic position of Chloromyxum species with new sequence data within Chloromyxum s.s. clade. Chloromyxum cristatum Léger, 1906 (GenBank accession no: AY604198) and Myxidium lieberkuehni Bütschli, 1882 (GenBank accession no: X76639) were set as the outgroup, their common branch shortened to 50% of the original length. Nodal supports are indicated for ML (1000 replicates, only bootstrap values greater than 50% are shown), MP (1000 replicates only bootstrap values greater than 50% are shown) and BI (only posterior probabilities greater than 0.8 are shown). Bold branches lead to nodes highly supported (>70% for ML and MP, and >0.8 for BI) and dashes indicate bootstrap values <50 or node not present in the MP or BI tree. Newly sequenced taxa in bold. Species names are supplemented with corresponding GenBank accession numbers. Host taxonomic order and its geographic distribution are stated at the left and right sides of the ML tree respectively. The number of changes per site is given by the scale bar.