Reexamination of six taxa described inLeptosphaeriafrom species in the Ranunculaceae

摘要

Six fungal species previously placed inLeptosphaeriaand originally described on plant species in the Ranunculaceae were reevaluated for their proper taxonomic position and redescribed and illustrated from the type and authentic materials. The original position ofLeptosphaeria nigromaculataasOphiobolus nigromaculatais confirmed.Metasphaeria rupicolais transferred toMassarina, and a lectotype is designated.Leptosphaeria scotophilaandLeptosphaeria thoraeare transferred toPhaeosphaeria, and a lectotype is designated forL.scotophila. The previous transfer ofLeptosphaeria anthostomoidestoMontagnula anthostomoidesis confirmed. The new genusBarrellais established and typified byLeptosphaeria thalictri, and a neotype is designated.Key words: systematics, Loculoascomycetes,Leptosphaeria.