| Noun | 1. | Macowanites americanus - a small fungus with a fragile cap that cracks to expose the white context and a white stalk that is practically enclosed by the capfungus - an organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter; ranging from unicellular or multicellular organisms to spore-bearing syncytia genus Macowanites, Macowanites - a stout-stemmed genus of fungus belonging to the family Secotiaceae having fruiting bodies that never expand completely |