Order: Ostropales       Family: Graphidaceae Species: Graphina anguina Growth type crustose, graphid. Photos: On Sycamore. Macroom, Co. Cork, SW Ireland. Specimen identified by John Douglass Thallus whitish-grey, slightly shiny and often wrinkled or cracked. Margin of immersed apothecia often slightly elevated, carbonaceous margin flat with narrow disc. Lirellae are short, serpentine, usually star-shaped and often pruinose. Ascus 8-spored. Colourless muriform spores, 20+ cells, 7-11 transverse septa, 25-50 x 12-16 µm. Micro photographs below. Throughout Ireland on slightly shaded smooth-barked trees, often in secondary woodland or coppices. Chemical reactions negative. Similar: Graphis scripta

Microscope photographs










Graphina anguina. November 2009