REPORT OF THE 8TATE B0TANI8T 



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PLATE 6. 

 Agaricus campester L. 

 Common Mushroom. 



1 A cluster of three young plants, in one of which the veil has just 



separated from the margin of the cap, thereby revealing the gills. 



2 and 3 Plants with their caps partly expanded and their gills yet 



pink-colored . 



4 A mature plant with its cap f ully expanded and its gills blackish-brown . 



5 Vertical section of the cap and upper part of the stem of an immature 



plant. 



6 Vertical section of the cap and upper part of the stem of a mature 



plant . 



7 Four spores, X 400. 



Variety hortensis. 



8 An immature plant. 



9 A mature plant. 



10 ^our spores, X 400. 



PLATE 7. 

 Agaricus subrufescens Peck. 

 Slightly Reddish Mushroom. 



1 A young plant whose veil has just separated from the margin of the 



cap, revealing the whitish color of the gills. 



2 A cluster of four plants, two young, and two older ones with the caps 



partly expanded and the gills yet of a pinkish hue. 



3 A single plant approaching maturity. 



4 A mature plant whose gills have assumed the blackish-brown color. 



5 Vertical section of the cap and upper part of the stem of a young 



plant. 



6 Vertical section of the cap and upper part of the stem of a middle-aged 



plant. 



7 Vertical section of the cap and upper part of the stem of a mature 



plant. 



8 Four spores, X 400. 



9 Branching strings of mycelium. 



PLATE 8. 

 Agaricus arvensis Schceff. 

 Field Mushroom. Horse Mushroom. 



1 A young plant with the vol just separated from the margin of the 



cap. 



2 A plant with the cap partly expanded, showing the dingy pinkish 



hue of the gills. 



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