Minnesota Plant Diseases, 17 



of the trunks will arise the honey-colored mushroom, which 

 usually occurs in great clusters. 



FIG. 6. "Shoestring" strands of mycelial threads of the honey-colored mushroom 

 (Armillaria mellea). (See also Fig. 128.) Original. 



Physiology of the Mycelium. The mycelium arises from 

 the spore by the germination of the latter. The spore sends 



