Arthonia banksiae (lichenised Ascomycota) and its synonyms

Arthonia banksiae, a widespread lichen known from the central and eastern Victorian coast, is lectotypified, described, and illustrated from modern collections. Mycoporellum microspermum and Asteroporum rimale, the latter name previously shrouded in some confusion, are synonyms of A. banksiae; the latter species is also lectotypified. Arthonia microsperma has been recorded for Australia in error and should be deleted from the Australian lichen census.