Biscogniauxia nummularia decline of European beech ("Fagus sylvatica") in Sicily and Calabria (Italy) has been linked to "B. nummularia" and experiments have suggested that this ascomycete plays a primary pathogenic role under certain environmental conditions. It typically causes strip‐cankering and general wood decay. Biscogniauxia nummularia Biscogniauxia nummularia is a plant pathogen in the family Xylariaceae, known as the beech tarcrust. The specific epithet is derived from the Latin "nummus" meaning a coin, referring to the often rounded and coin-like encrustations. The fruit body forms a thick and shiny black crust, on beech ("Fagus") bark and is found at all times of the
Microseris sylvatica Microseris sylvatica Microseris sylvatica is a species of flowering plant in the aster family known by the common names sylvan scorzonella and woodland silverpuffs. It is endemic to California, where it has a scattered distribution throughout the central California Coast Ranges and inland mountain ranges, including the Sierra Nevada of the state. Its habitat includes grassland and openings in wooded areas. This is a perennial herb growing up to 75 centimeters tall. The leaves are up to 35 centimeters in length and wavy, toothed, or lobed along the edges. The inflorescence is borne on an erect peduncle, the flower head