Fungi with Gills 



GENUS STROPHARIA 



There are about seven species of this genus in America. The 

 spores are brown, there is no volva, the stem has a collar, and 

 the lamellae are united with the stem. They have no special 

 economic importance. 



GENUS PSATHYRA 



There are but two species reported for this genus. The 

 spores are dark brown, there is no volva, the veil is inconspicu- 

 ous or wanting, and the lamellae attached to the stem or notched 

 at the inner extremity. The margin of the cap in the young 

 plant and mature plant is always straight. 



GENUS PSILOCYBE 



There are eleven species reported for this genus. The spores 

 are dark brown. There is no volva, the veil is inconspicuous or 

 wanting, and the lamellae are attached to the stem or notched at 

 the inner extremity. In the young plant the cap curves in at 

 the margin. 



GENUS PI LOS ACE 



This genus has but one American species recorded. The 

 spores are dark brown. There is no volva, and the veil is incon- 

 spicuous or wanting. The lamellae are free from the stem. 



GENUS DECONICA 



There is but one species in this genus. This has dark brown 

 spores, and the lamellae growing down on the stem. The veil 

 is inconspicuous or wanting, and there is no volva. 



Str6ph-a'-rT-a Psa-thy'-ra PsT-16-9y'-be 



PI-lo-sa'-9e De-con'-l-ca 



82 



