Beech Barkspot Diatrype disciformis (Hoff.) Fr. (illustrated life size) Fruit body 1–3mm across, discoid; whitish, soon blackish on the outer surface, remaining white-fleshed. Spores 5–8×1.5–2¼, curved, cylindrical. Asci 5¼ wide, elongate club-shaped. Habitat on dead branches of deciduous trees, usually beech, emerging from below the bark; all year. Very common. Not edible.