EXPLANATION OF PLATE VIII 

 Basidiomycetes 



Fig. I, Poison cup, Ayiianita phalloides [Agk^ickle?,). Two-thirds- 

 natural size. This is the most dangerous of the species of poisonous fungi. 

 It can be recognized by its white lamellae, its skirt-like annulus (A), and 

 its volva (B) at the base of the stem. A part of the volva was also carried 

 up with the expanding pileus and appears on the surface as a series of 

 floccose separable scales. 



Fig. 2. The same in an early condition showing the volva completely 

 investing the pileus which is not yet expanded. 



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