Based on recent acquisitions of the Australian National Herbarium since 1982, mainly the collections of J.A.Elix and H.Streimann, new distribution data are presented for 162 species. This includes 31 species new to Australia: Acamspora reagens, Collema fragrans, Cyphelium australe, Dictyonema ligulatum, Dimerella pineti, Diploschistesfarinosus, D. gyrophoricus, Dirinaria complicata, Heterodermia isidiophora, Hyperphyscia pruinosa, Megalospora atrorubicans ssp. atrorubi- cans, Myriotrema bahianum, M. compunctum, M. terebrandum, Ocellularia aurata, O. berkeleyana, Ochrolechia africana, Opegrapha filicina, O. phylloporinae, Peltula marginata, Physcia dimidiata, Porina sphaerocephala, Porpidia cinereoatra, Pyrenula corticata, Pyxine cylindrica, Thelotrema platysporum, Thyrea confusa, Trapelia involuta, Trichothelium triseptatum, Trypethelium aeneum. Umbilicaria nylanderiana. Most of these are tropical taxa, found in Queensland. The other species are newly recorded for one or more Australian states.