150 MUSHROOMS. 



Section B is divided into two classes : 



I. Plants club-shaped and simple, or bush-like and branched 

 (Clavariei). 



II. Plants gelatinous and irregular (Tremellinei). 



SECTION A. 



Class I. Key to Gill- bearing Mushrooms (Agarics). 



1. Plants fleshy, soon decaying, 2. 

 Plants leathery, woody, persistent, 12. 



2. Juice milky, white, or colored, Lactarius. 

 Juice watery, 3. 



3. Stem central, or nearly so, 4. 

 Stem lateral, eccentric or wanting, 11. 



4. Spores white, 5. 

 Spores rosy, pink or salmon color, 15. 

 Spores yellowish-brown, ochre color, 17. 

 Spores dark brown, 21. 

 Spores black, 24. 



5. With volva and ring, Amanita. 

 Volva and no ring, Amanita (sub-genus Amanitopsis). 

 Ring and no volva, 6. 



No ring and no volva, 7. 



6. Gills free, ring movable, pileus scaly, Lepiota. 

 Gills adnate, pileus generally smooth, Armillaria. 



7. Gills thin, edge acute, 8. 

 Gills in the form of folds, obtuse edge, 10. 



8. Gills decurrent or stem fleshy. Clitocybe. 

 Gills sinuate, notched behind, stem 



fleshy, Tricholoma. 



Gills adnate, not decurrent, stem carti- 

 laginous, Collybia. 



Stem fleshy, cap often bright color, 9. 



9. Plants rigid, gills even, cap bright, Russula. 

 Plants with waxy gills, Hygrophorus. 



10. Gills decurrent, plant terrestrial, Cantharellus. 



