2 1-| NEW YORK STATE MUSEUM 



Agaricus silvicola Vitt. 



Forest Mushroom 



i Young plant 



2 Immature plant 



3 Mature plant 



4 Vertical section of the upper part of an immature plant 



5 Vertical section of the upper part of a mature plant 



6 Transverse section of a stem 



7 Four spores X 400 



Agaricus abruptus Pk. 



Abrupt Mushroom 



8 Young plant 



9 Immature plant 



10 Mature plant with cap fully expanded 



1 1 Vertical section of the upper part of an immature plant 



12 Vertical section of the upper part of a mature plant 



13 Transverse section of a stem 



14 Four spores X 400 



