This website is a tool to identify various tree pathogens and fungi. On the right you will find the list of species included. Clicking one of these will open up a new list to the right again. This list will include further links to different features such as spores, mycelium, fruiting bodies and timber damage.
All of the images will expand when clicked so as to allow for a greater inspection. I didn’t include an upper threshold as the detail will aid identification. Just click outside of the image frame or press the escape button. The image below is Piptoporous betulinas.