《太平广记·卷三百九十九·水（井》
打水的人搅到了草帽，挂在庭院前面的树上，每当下雨时草帽上的雨水滴溜到的地方，就生长出黄菌。
汲者搅得席帽挂于庭树，每雨所溜处，辄生黄菌。
The water-drawer stirred the straw hat, hung it on a tree in front of the courtyard, and whenever the rain fell, the rain from the straw hat would drip to the ground, where coprinus would grow.