Birch and Willow fungus
Birch fungus is a general term for a type of bracket fungus that grows on birch trees, willow and red willow (alder) shrubs.
Birch fungus was cut up, boiled and used for stomach ailments. Ashes were rubbed gently on skin sores and pimples.
The fungus was also cut up and crushed into small pieces, and then mixed with cigarettes or chewing tobacco to make it last longer.