16 Most Bizarre Mushroom And Fungi Species In The World

Black Witches' Butter (Exidia glandulosa): Black Witches' Butter. Jean-Baptiste Francois Bulliard, a French naturalist, first recorded this strange fungus in 1789. Named as such for its color and greasy consistency in wet weather, Black Witches' Butter appears on dead hardwood during the autumn and winter seasons. Alternately, in hot and dry weather, these mushrooms appear more greenish-brown and crusty.