Diversity of the Trypethelium eluteriae group in Thailand (Ascomycota, Trypetheliales)

The diversity of the Trypethelium eluteriae group in Thailand was studied using molecular (ITS and mtSSU rDNA sequences), morphological, and chemical data. Three species were recognized, T. eluteriae, T. platystomum, and T. subeluteriae, with the latter two being new records for Thailand. The separation of the three species, which have sometimes been regarded as synonymous, is supported by molecular and phenotypic characters. The chemical profiles of the three species are distinct, while ascospore size, often used to distinguish species in the group, shows some overlap.