Noteworthy foliicolous lichens collected from Iriomote Island, southern Japan

The following noteworthy species were identified based on foliicolous lichen material collected in 2011 and 2019 on Iriomote Island: Byssoloma chlorinum, B. vanderystii and Gallaicolichen pacificus, reported as new to Japan, and B. minutissimum and Fellhanera rhapidophylli, reported as new to Iriomote Island. Hyphophores and diahyphae of Tricharia kashiwadanii were described for the first time, based on the original material and a collection from Iriomote Island. The mtSSU sequences of B. chlorinum, Porina kamerunensis and T. kashiwadanii were obtained for the first time as well as additional sequences of B. annuum, B. vanderystii, Eugeniella micromata. The mtSSU sequence was obtained from the specimens were compared in terms of homology with those registered in GenBank.