, a new species on from Japan.

leaf spot on hemp has re-emerged with increasing hemp cultivation worldwide. In Japan, , initially recorded as the causal pathogen in Japan, was studied with morphology based on the current criteria and detailed molecular phylogenetic analyses using seven gene loci. The robust phylogenetic data and morphology of examined specimens unveiled the existence of a new species of the genus causing leaf spot disease on .

Re-Examination of Several Species Reported from Japan.

are plant pathogenic fungi that cause scabs, spotted anthracnose, and some morphological distortions on various plants, including woody plants, economically important crops, and ornamental plants. Taxonomical reexamination of species in Japan has not yet been conducted based on the modern species criteria. In this study, several Japanese isolates were reexamine based on the morphological and molecular-phylogenetic analysis of the internal transcribed spacer region (ITS), large subunit gene (LSU)m and protein-coding gene such as RNA polymerase II subunit ( and Translation elongation factor 1-alpha Japanese isolates were divided into four clades and three new species, , and were proposed.