Pyxine rugulosa Stirton (Pyxinaceae, Lichenised Ascomycetes) in Queensland.

Abstract

The collection of material chemically identical to the fragmen- tary type of Pyxine rugulosa Stirton has allowed clarification of the application of that name. P. rugulosa can be distinguished from other species of Pyxine in Australia by its combination of a broad-lobed, heavily pruinose thallus without vegetative propagules, yellow medulla, and presence of atranorin but not lichexanthone in the cortex. It is appar- ently restricted to regions west of the Great Dividing Range in Queensland.