The lichen genus Lecidella (Lecanoraceae), with special reference to the Tasmanian species

Eight species of Lecidella (Lecanoraceae, lichenised Ascomycetes) are recorded for Tasmania: L. destituta Kantvilas & Elix sp. nov., L. elaeochroma (Ach.) Hazsl., L. flavovirens Kantvilas & Elix sp. nov., L. granulosula (Nyl.) Knoph & Leuckert, L. stigmatea (Ach.) Hertel & Leuckert, L. sublapicida (C. Knight) Hertel and L. xylogena (Müll. Arg.) Kantvilas & Elix comb. nov. (all present in mainland Australia), and the Tasmanian endemic L. montana Kantvilas & Elix sp. nov. All species are described in full, and notes on their characterisation, inter-relationships, distribution and ecology are provided. The status of the names Lecidea minutula Müll. Arg. and L. leptolomoides Müll. Arg., based on collections from Victoria, is discussed briefly.