Published online by Cambridge University Press: 28 March 2007
Ten species and one variety of Verrucaria Schrader are known from creeks and rivers in eastern Australia. Verrucaria austroalpina sp. nov., V. inconstans sp. nov., V. mundula sp. nov., V. mundula var. deminuta var. nov., V. phaeoderma sp. nov., V. tasmanica sp. nov. and V. tholocarpa sp. nov. are described. The combination V. puncticulata (P. M. McCarthy) P. M. McCarthy is made for V. hydrela var. puncticulata P. M. McCarthy. Verrucaria margacea (Wahlenb.)Wahlenb. and V. praetermissa (Trevisan) Anzi are reported from the Southern Hemisphere for the first time.