A further new species in the lichen genus Arctomia: A. borbonica from Reunion (Mascarene archipelago)

Abstract

peer reviewedArctomia borbonica sp. nov. is described as new for science from montane natural and secondary habitats in Reunion in the Mascarene archipelago (Indian Ocean). It has a sterile, foliose, usually wrinkled, thallus whose margins produce goniocysts that disintegrate into a soredioid margin; it looks like a Leptogium species. Its phylogenetic position in the Arctomiaceae (Ostropomycetidae, Ascomycota) has been determined with 3 genes (nuLSU, mtSSU, RPB1) inferences