DIEECTIONS FOR USING KEYS. 151 



11. Spores white, Pleurotua. 

 Spores yellowish or brown, Crepidotus. 



12. Gills serrated on their edges, stem cen- 



tral or lateral, Lentinus. 



Gills entire, stem central, 13. 



Stem lateral or wanting, 14. 



13. Gills simple, pileus dry, soon wither- 



ing, then reviving when moist, Marasmius. 



14. Gills deeply splitting, with weak hairs, Schizophyllum. 

 Gills united by veins, plant corky, Lenzites. 



15. Volva, no ring, Volvaria. 

 No volva, ring present, Annularia. 

 No volva, no ring, 16. 



16. Gills free, rounded behind, cohering at 



first, Pluteus. 



Gills adnate or sinuate, stem fleshy, soft, 



waxy, cap fleshy, margin incurved, Entoloma. 

 Gills decurrent, stem fleshy, Clitopilis. 



17. Ring continuous, pileus with scales, Pholiota. 

 Ring cobwebby or evanescent, not ap- 

 parent in old specimens, 18. 



Ring wanting, 19. 



Stem with cartilaginous rind, 21. 



18. Gills adnate, plants on the ground, Cortinarius. 



19. Gills decurrent, stem fleshy, gills easily 



separating, Paxillus. 

 Gills not decurrent, stem fleshy, 20. 



20. Pileus fibrillose, or silky, Inocybe. 

 Pileus smooth and sticky, Hebeloma. 



21. Veil remaining attached to margin of 



pileus, often not seen in old speci- 

 mens, Hypholoma. 



Veil on stem as a ring, 22. 



Margin of cap incurved when young, Naucoria. 



22. Gills separate on the stem, Agaricus or Psalliota. 

 Gills united with stem, Stropharia. 

 Gills adnate or sinuate, 23. 



