Rhabdodiscus

The genus was circumscribed by Finnish lichenologist Edvard August Vainio in 1921. The species of this genus were previously classified in genus Stegobolus, until molecular phylogenetic analysis showed that Stegobolus and Rhabdodiscus formed two separate, distantly related clades. Rhabdodiscus was formally reinstated in 2012 to contain the formers members of the Stegobolus auberianus species group. ==Description==

Rhabdodiscus is characterised by having a distinctly carbonized (blackened) apothecia with thin margins that lack a felt-like pruina. In contrast, Stegobolus species have apothecia that are either uncarbonized to weakly carbonized, and have thick margins with felty pruina on the inner side. ==Species==

, Species Fungorum accepts 36 species of Rhabdodiscus. • Rhabdodiscus albodenticulatus • Rhabdodiscus argentinensis • Rhabdodiscus asiaticus • Rhabdodiscus bakoensis • Rhabdodiscus caracasanus • Rhabdodiscus crassoides • Rhabdodiscus crassus • Rhabdodiscus emersellus • Rhabdodiscus emersus • Rhabdodiscus exutus • Rhabdodiscus farinosus • Rhabdodiscus feigei • Rhabdodiscus granulosus • Rhabdodiscus inalbescens • Rhabdodiscus indicus • Rhabdodiscus inspersus • Rhabdodiscus integer • Rhabdodiscus isidiatus – Sri Lanka • Rhabdodiscus isidiifer • Rhabdodiscus kinabalensis • Rhabdodiscus korupensis • Rhabdodiscus lankaensis • Rhabdodiscus marivelensis • Rhabdodiscus neocaledonicus • Rhabdodiscus parnmenianus • Rhabdodiscus planus • Rhabdodiscus ramificans • Rhabdodiscus reconditus • Rhabdodiscus saxicola • Rhabdodiscus schizostomus • Rhabdodiscus subcavatus • Rhabdodiscus subemersus • Rhabdodiscus tanzanicus • Rhabdodiscus thouvenotii • Rhabdodiscus trinitatis • Rhabdodiscus verrucoisidiatus ==References==