Cortinarius vanduzerensis 
Cortinarius violaceus 
Cotylidia diaphana 
Cracked Cap Polypore 
Crimped Gill 
Crimson Waxcap 
Crinipellis setipes 
Cross-veined Troop Mushroom 
Crowded White Clitocybe 
Crown-Tipped Coral Fungus 
Crusty Russula 
Cryptic bonnet 
Cryptoporus volvatus 
Crystal Brain Fungus 
Cuphophyllus borealis 
Curry Milkcap 
Curry punk 
Cyathus olla 
Cyclocibe aegerita 
Cyclocybe cylindracea 
Cymatoderma caperatum 
cymatoderma elegans 
Cystoderma aureum 
Cystodermella cinnabarina