EXPLANATION OF PLATE 3 



CORTINARIUS ALBIDUS Peck. 



Fig. 1. An immature plant. 



Fig. 2. A mature plant. 



Fig. 3. Vertical section of a pileus and the upper part of the stem. 



Fig. 4. Four spores x 400. 



Tricholoma GRANDE Peck. 



Fig. 5. An immature plant. 



Fig. 6. A mature plant. 



Fig. 7. Half of a vertical section of a pileus and upper part of the stem ; 



theae three figures about two-thirds natural size. • 

 Fig. 8. Four spores x 400. 

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