Diarimella laurentidae anam.: sp.nov from Quebec

Diarimella laurentidae, a new species occurring on dead bark and decorticat ed twigs of American beech (Fagus grandifolia Ehrh,), is reported from the Muir's Wood ecological reserve, located in the centre of the Haut-Saint-Lau rent region in the province of Quebec. Diarimella laurentidae is characteri zed by stromatic, pulvinate, black, setose fructifications composed of a ba sal stroma of textura angularis, a brown peripheral wall of textura porrect a, conidiomatal setae of two types, and unicellular multisetulate conidia. Irs relationships with described Diarimella species is discussed. This is t he first report of a species of Diarimella from North America.