Phylogenetic relationship of cystidiate taxa of Hydnodontaceae based on Maximum likelihood analysis of ITS nc rDNA sequences. Best-scoring tree with SH-aLRT/UFBoot2 support values above the branches is shown. Tips of the tree are annotated according to the generic affiliation of the taxa. Dextrinocystis calamicola was treated as an outgroup. In the clade sister to Luellia cystidiata, no species labels were assigned to the soil-derived DNA sequences because the species and genus identity of the single accession derived from the fruiting body, MH041511, is questioned in this study.