The conclusion was that the 4 kinds of fresh Boletus sp contained rich nutritious components,but the contents of total mercury in Boletus speciosus Frost,Boletus Calopus Fr were quite high,this should be concerned.

• 结论:这4种野生鲜牛肝菌含有丰富的营养成分,但华美牛肝菌、美柄牛肝菌中总汞含量较高,值得关注。