Fetid Armillaria 
Fetid Marasmius 
Firerug inkcap 
Flame Fungus 
Flaming Pholiota 
Flammula alnicola 
Flat crep 
Flowerpot parasol 
Fluted bird's nest 
Fly agaric 
Foul Clitocybe 
Fragile Dapperling 
Freckled Dapperling 
Fried Chicken Mushroom 
Frosty bonnet 
Frosty webcap 
Funeral Bells 
Fuzzy Foot 
Galerina hypnorum 
Galerina mammillata 
Garland Roundhead 
Gassy webcap 
Gastropila fumosa 
Ghost Fungus