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MINNESOTA MUSHROOMS 

 KEY TO THE GEXEUA 



1. Cup inverted conic. 10-16 mm. tall 



2. Cup cup-shaped. 5-S mm. tall 



Cyathus 

 Crucibulum 



Page 



134 

 135 



Figure 9S. Mutixus caxixus 



CYATIirS 



Readily distinguished from Crucibulum by microscopic characters of the 

 wall and sporangiole, but to be told by the beginner chiefly through its form and 

 size. The name means cup-like. 



Key to the Species 



1. ^[argin of the cup grooved or striate 



2. Margin of cup not striate 



C. striatiis 

 C. Vcniiiosiis 



Figure 99. Cv.-vrHus verxico.su; 



