daldinia concentrica mushroom on the wood. known as cramp balls or king alfred's cakes.

wildlife woodland mushroom produce nature flower autumn fungus forest plant grass green soil leaf tree rock lawn alfred's balls biology black black fungus mushroom brown cakes cap closeup concentrica cramp cramp daldinia daldinia dark ecology environment food forest fungi grass green inedible king macro moss mushrooms mycology natural nature outdoor plant tree wild winter wood woodland woods