What does "agaric" mean?

Agaric: An old name for severwal species of Polyporus, corky fungi growing on decaying wood. Note: The "female agaric" (Polyporus officinalic) was renowned as a cathartic; the "male agaric" (Polyporus igniarius) is used for preparing touchwood, called punk of German tinder. Agaric mineral, a light, chalky deposit of carbonate of lime, sometimes called rock milk, formed in caverns or fissures of limestone.