MUSHROOMS. 579 



kinds, however, in size, form, color, and organization, so 

 closely approach certain poisonous or deleterious species, as 

 to confuse even the most experienced student. None of the 

 family (not excepting even the common cultivated Mush- 

 room) should therefore be gathered for use, except by those 

 who may possess a thorough knowledge of the various spe- 

 cies and their properties. 



