Taxonomic revision of species found in Ryukyu Archipelago, Japan, based on phylogenetic analyses with three loci.

Fungi in the genus are external symbionts of fungus-growing termites. The three rhizogenic species , , and , and one species similar to that lacks pseudorrhiza, have been reported from Ryukyu Archipelago, Japan. In contrast, only two genetic groups (types A and B) of vegetative mycelia have been detected in nests of the fungus-growing termite In this study, we investigated the relationships between the mycelial genetic groups and the basidiomata of samples from the Ryukyu Archipelago. We found that all the basidioma specimens and the type B mycelia formed one clade that we identified as . Another clade consisted of the type A mycelia, which showed similarity to was identified as . Our results indicate that the Japanese and specimens should re-named as