Elix, John; Corush, Joel; Lumbsch, H Thorsten
Species delimitation in lichens of the Physcia aipolia group in Australia has been studied based on thalline morphology (lobe width, upper surface pruinosity) and medullary triterpene chemistry as main character complexes. Previous treatments have utilised the presence or absence of atranorin and zeorin in the medulla as useful discriminators, but have neglected utilising the diversity of medullary triterpenes for taxonomic purposes. We have now tested the phylogenetic patterns of distribution...[Show more]
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