Abstract
AbstractRamalina celastriis a highly variable, widely distributed pan-subtropical lichen species. In Australasia the species had been separated into two subspecies;R. celastrisubsp.celastriandR. celastrisubsp.ovalis. This study compares morphological variation, substratum preference and sequences of the internal transcribed spacer (ITS) and intergenic spacer (IGS) regions of ribosomal DNA from a range of specimens from New Zealand and one from Australia. Bayesian and ML trees generated using the sequence data form two well-supported clades corresponding to the two previously recognized subspecies. Molecular, morphological and geographical differences support the recognition ofR. ovalisat the species rank.
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