Published online by Cambridge University Press: 28 March 2007
Based on collections gathered by H. Streimann and J. A. Elix in Papua New Guinea, Australia (including Tasmania), and Vanuatu, five new foliicolous lichen species are described: Calenia bullatinoides Lücking, Eremothecella cyaneoides Lücking, Fellhanera tasmanica Lücking & Elix, Fellhaneropsis australiana Lücking, and Porina vanuatuensis Lücking. In addition, the following new combinations are proposed: Coenogonium isidiiferum (Lücking) Lücking [Bas.: Dimerella isidiifera Lücking], Coenogonium lisowskii (Vězda) Lücking [Bas.: Dimerella lisowskii Vězda], Coenogonium queenslandicum (Kalb & Vězda) Lücking [Bas.: Dimerella queenslandica Kalb & Vězda], Echinoplaca tetrapla (Zahlbr.) Lücking [Bas.: Gonolecania tetrapla Zahlbr.], and Porina subepiphylla var. australiensis (Lücking & Vězda) Lücking [Bas.: Porina lucida var. australiensis Lücking & Vězda]. Coenogonium piliferum (Vězda) Kalb & Lěcking [Bas.: Dimerella pilifera Vě zda] is placed into synonymy with Coenogonium epiphyllum Vain. An updated checklist of foliicolous lichens from Australia includes 202 species and excludes five previously reported taxa.