Gyromitra esculenta n 1: a poisonous gyromitra; the surface of the fertile body is smooth at first and becomes progressively undulating and wrinkled (but never truly pitted); color varies from dull yellow to brown [syn: {Gyromitra esculenta}, {brain mushroom}, {beefsteak morel}]
Turban-top \Tur"ban-top`\, n. (Bot.) A kind of fungus with an irregularly wrinkled, somewhat globular pileus ({Helvella esculenta} syn. {Gyromitra esculenta}.). [1913 Webster]