The Genus Pyxine (Physciaceae, Lichenized Ascomycetes) in Australia

Abstract

Following morphological, anatomical and chemical studies, 15 species of Pyxine (Physciaceae, lichenized ascomycetes) are recorded for Australia. Their classification, distribution and habitats are discussed. The following taxa are reduced to synonymy: Pyxine cocoes var. endoxantha Müll. Arg. and P. meissneri var. rinodinoides Vainio with P. berteriana (Fée) Imshaug; P. brachyloba Müll. Arg., P. nitidula Mull. Arg. and P. microspora Vainio with P. minuta Vainio; P. meissneri var. convexula Malme, P. albida Magnusson and P. pringlei Imshaug with P. petricola; P. meissneri var. subobscurascens Malme with P. pungens Zahlbr.; P. retirugella var. laevior Vainio, P. retirugella var. capitata Zahlbr., P. copelandii Vainio, P. asiatica Vainio, and P. patellaris Kurok, with P. retirugella Nyl.; and P. prominula Stirton with P. cocoes (Sw.) Nyl. The new species P. isidiolenta R. W. Rogers is described and the new name P. linearis R. W. Rogers is proposed for P. retirugella var. endoxantha forma sorediosa Mull. Arg.