Three new species of Incrucipulum were described from Japan: I. foliicola and I. pseudosulphurellum on Myrica gale subsp. tomentosa and I. hakonechloae-macrae on Hakonechloa macra. Disposition to Incrucipulum was justified by molecular phylogenetic analysis based on ITS-5.8S, LSU and RPB2 regions, and monophyly of Incrucipulum was also confirmed. Some apomorphic characters of Incrucipulum were identified. By addition of three new species, the genus Incrucipulum now contains 13 species.

Microstoma longipilum sp. nov. collected from two localities in Japan is described. It is characterized by long apothecial hairs and salmon pink discs. Molecular phylogenetic analyses supported the novelty of the fungus. We additionally reported the overlooked morphology of hyphal mats, conidiogenous cells produced directly from ascospores, and conidia. With the addition of M. longipilum, now six species of Microstoma are documented in Japan.

Type specimen of Lachnum japonicum Syd. & P. Syd. was discovered in the National Museum of Nature and Science (TNS). Based on the morphological reexamination of it, the species was transferred to the genus Trichopezizella. Trichopezizella japonica comb. nov. was proposed and the specimen was designated as lectotype.