| Fomitopsis spraguei |
| Fomitopsis spraguei made quick work of this oak stump. This brown rot fungus degrades cellulose in its search for food, leaving behind lignin. |
| These two sets of images show a ten day time lapse. Summer. |
| The margin of Fomitopsis spraguei varies in color; reddish brown (usually when very young) to light brown and will bruise green when handled. |
| See Fomitopsis spraguei at Fungi Growing on Wood |
| See photo series of Fomitopsis spraguei at The Mushroom Hunter |
| Plastic alternative made from lignin TECNARO |