香菇是古今中外极为名贵的食用菌。香菇因其营养丰富 ,药用功效显著 ,而享有“保健食品”、“菇中之秀”、“菌中之王”的美称。古医书记载 :秦代北阳芷县的深山老林中 ,尽是栗、柯、槲等树 ,树干长满了三寸多高、表面黑褐色、形状象伞一样的东西。乡民采来食之 ,觉得香味美 , Mushroom is an extremely valuable edible fungus at any time. Because of its rich nutrition, medicinal efficacy significantly, while enjoying the “health food”, “mushroom in the show,” “king of bacteria” reputation. Ancient medical records: Qin Yangxian County in the mountains of deep forests, chestnut, Ke, mistletoe and other trees, trunk covered with more than three inches high, the surface dark brown, the shape of things like umbrellas. The villagers adopt food, think fragrance is beautiful,