Y ou may know the expensive chocolate truffle , a dessert in the shape of a small rough ball, but do you know the fungus that it takes its name from?

• 你可能知道一种名叫松露巧克力的昂贵甜点，它的形状看起来像一颗外表粗糙的小球，但你了解名为松露的这种蕈类吗？