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Chorioactis is a genus of fungus that contains the single species Chorioactis geaster, an extremely rare mushroom found only in select locales in Texas and Japan. In the former, it is commonly known as the "devil's cigar" or the "Texas star"; in Japan it is called kirinomitake. It is notable for its unusual appearance. The fruit body, which grows on the stumps or dead roots of cedar elms (in Texas) or dead oaks (in Japan), somewhat resembles a dark brown or black cigar before it splits open radially into a starlike arrangement of four to seven leathery rays. The interior surface of the fruit body bears the spore-bearing tissue, and is colored white to brown, depending on its age. Fruit body opening can be accompanied by a distinct hissing sound and the release of a smoky cloud of spores. Fruit bodies were fir... Find out more →

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