青头菌(Russula Virescens L)又名绿菇、变绿红菇、青面梨菇、绿豆菇等,属担子菌纲,红菇科。单生或群生,菌盖质地坚实,呈青绿色或微绿色,表面有青褐色的鳞片。菌盖直径3～12cm,初呈球状,长至后来呈扁半球形,老熟时中央稍下凹,表面往往龟裂,形成卷毛或小碎片;菌褶密集,呈白色;菌 Russula Virescens L (Russula Virescens L), also known as green mushrooms, green red mushrooms, green surface pear mushrooms, mungbean mushrooms, is a Basidiomycetes, Russulaceae. Solitary or lumps, bacteria cover a solid texture, was green or slightly green, the surface of the brown scales. Cover the diameter of 3 ~ 12cm, spherical at first, then to a flat hemisphere, when mature, the center slightly concave, the surface tends to crack, forming curls or small fragments; dense bacterial folds, white; bacteria