gen. nov. and a new species of causing basal rot of in Italy.

During 2015, a new basal rot disease was observed on potted plants of in an ornamental nursery located in eastern Sicily. Isolations from symptomatic parts of these diseased plants consistently yielded cylindrocarpon-like isolates. Multigene analyses of the partial gene regions of 28S large subunit nrDNA, β-tubulin, histone H3, translation elongation factor 1-alpha, internal transcribed spacer region and intervening 5.8S nrRNA gene, and RNA polymerase II second largest subunit genes, supported by morphological characters supported the recognition of a new genus, based on sp. nov., and a new species, described here as sp. nov. The pathogenicity of both and were confirmed on young plants cultivated under controlled conditions in a growth chamber. Both cylindrocarpon-like fungi were pathogenic to . and reproduced symptoms similar to those observed in the nursery. Of the two species, was more aggressive than resulting in the death of all inoculated plants.