New species of Xanthoria (Teloschistaceae) from Australia
KONDRATYUK, S.Y., KÄRNEFELT, E.I. AND THELL, A.
Xanthoria elixii S. Kondr. & Kärnefelt, sp. nov. and X. streimannii S. Kondr. & Kärnefelt, sp. nov. are described, illustrated and compared with allied taxa, and a detailed description of the common and widespread species X. filsonii Elix is also given. A key to Australian taxa of Xanthoria is provided.