LAMBERT'S PURE CULTURE 



Mushroom 



Spawn 



.^^r^» 



Produced by the new grafting 

 process from selected and 

 prolific specimens, throughly 

 acclimatized, has never failea 

 to run. 



This spawn is made from 

 cultures taken by the selective 

 method, recently discovered, 

 from choice specimens of the 

 best varieties of mushrooms 

 known to be thoroughly accn- 

 matized, and selected with 

 special reference to their size, 

 flavor, vigor and prolificness. 

 The elements of uncertainty 

 surrounding th old chance 

 method of producing wild 

 spawn (English and French), 

 is therefore eliminated, and a 

 uniform crop of the best mar- 

 ketable variety is thus assured 



to the exclusion of all other and inferior fungi. 



The importance of this discovery will be realized from the mere 



statement that, for the first time in the history of mushroom culture, 



can spawn be ofifered of a specific variety of mushrooms. 



Of the varieties already developed, we are offering pure culture 



spawn of the Agaricus Campcstris (white cream or I)rown), ./. .Ironisis 



(cream), and A. Villaficus (cream). 



FOR SALE BY ALL LEAD1N(^, SEEDSMEN. 



Practical Instructions on "MUSHROOM CULTURE" 

 mailed free on application. 



American Spawn Company, 



ST. PAUL, MINN. 



\\ iu'u ai swc-rintj ach crtisenient nientidn Mycological Bulletin. 



