Fan-Shaped Jelly Fungus 
Farinose Cartilage Lichen 
Favolaschia manipularis 
Favolus brasiliensis 
Felt-ringed agaricus 
Fenugreek milkcap 
Fetid Armillaria 
Fetid Marasmius 
Fibroporia radiculosa 
Fir Broom Rust 
Firerug inkcap 
Fishbiscuit Russula 
Fistulinella violaceipora 
Flame Chanterelle 
Flame Fungus 
Flaming Pholiota 
Flammula alnicola 
Flat crep 
Flavodon flavus 
Flavoparmelia rutidota 
Flexible Helvella 
Flowerpot parasol 
Fluffy Dust Lichen 
Fluted bird's nest