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 lamella are united with the stem. They have no special 
economic importance. 
GENUS PSATHYRA 
Two American species are reported for this genus. The 
spores are dark brown, there is no volva, the veil is inconspicu- 
ous or wanting, and the lamellz 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 
Eleven American species are reported for this genus. The 
spores are dark brown. There is no volva, the veil is incon- 
spicuous or wanting, and the lamelle are attached to the stem 
or notched at the inner extremity. In the young plant the cap 
curves in at the margin. 
GENUS PILOSACE 
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 lamellz are free from the stem. 
GENUS DECONICA 
But one American species is reported. This has dark brown 
spores, and the lamellae growing down on the stem. The veil 
is inconspicuous or wanting, and there is no volva. 
Stréph-a'-ri-4 Psa-thy’-ra Psi-l6-cy'-bé 
Pi-16-sa’-¢é Dé-cén’-1-cd 
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