There’s a fungus among us!

From Wikipedia’s Site: (https://en.wikipedia.org/wiki/Ganoderma_applanatum)

“This fungus grows as a mycelium within the wood of living and dead trees. It forms fruiting bodies that are up to 30–100 centimetres (12–39 in) across, hard as leather, woody-textured, and inedible in raw form. They are white at first but soon turn dark red-brown. Brown spores are released from the pores on the underside of the fruiting body. The fruiting bodies are perennial, and may persist for multiple years, increasing in size and forming new layers of pores as they grow.”