192 



MANUAL OF MODERN VITICULTURE. 



Agaricus Melleus. The mycelium of Agaricus mel- 

 leus forms roots travelling through the soil. They are like 

 those of the Dematophom, brown inside and white outside ; 



Fig. 159. Extremity of Fructiferous Filament 

 of Dernatophera Nteatrix. 



Fig. 160. Vine Root covered 

 with Agaricus Melleus 

 (after Millardet). 



they can only be distinguished by microscopical examina- 

 tion of the filaments composing them. These cords of 

 mycelium travel along the roots of the vine (Fig. 160), 

 insert themselves between the bark, and form white patches 

 (Fig. 163), phosphorescent at night. 



