This photograph features a white poroid resupinate fungus, likely identified as **Brunneoporus malicola(?)**, on the underside of a fallen oak branch. The species is named after its fruiting bodies' resemblance to a brown mushroom.
The image captures the underside of the branch, where the fungus has developed in clusters. Each cluster consists of numerous overlapping white cups with rounded edges and an irregular shape that appears like a flower petal when viewed from above. These clusters are scattered across the surface of the branch, leaving behind patches of bare wood interspersed among them.
In addition to the fungus, some brown debris is visible on the surface around the fungal growth. The overall coloration of the image ranges from white and light brown to dark brown and black, with the fungus itself appearing as a bright white that contrasts with the darker colors of the surrounding bark and debris. – AI vision