Species: Graphis scripta
Very variable. Smooth or wrinkled white or grey thallus with curved or stellate apothecia. Centres of lirellae open, +/- white pruinose. Similar to G. elegans but carbonaceous margins are raised and unfurrowed. Asci 8-spored, spores 5-15 septate, 25-70 x 6-10 Ám. Mature spores are colourless but may become brown when old. Microscope photographs below.
Very common on smooth barked trees, branches and twigs. K-, P- One of the main species of the Graphidion lichen community found on smooth hazel stems.
Sometimes parasitised by Stigmidium microspilum