Collybia cirrhata 
Collybia cookei 
Collybia eucalyptorum 
Collybiopsis subnuda 
Coltricia australica 
Coltricia montagnei 
Colus hirudinosus 
Colus pusillus 
Common Bird's Nest Fungus 
Common Bird's Nest Fungus 
Common Club Coral Fungus 
Common Earthball 
Common Fiber Vase 
Common Fieldcap 
Common Funnel 
Common ink cap 
Common Jellyspot 
Common puffball 
Common Stinkhorn 
Common Stump Brittlestem 
Conchomyces bursiformis 
Conifer Brain 
Conifer Mazegill 
Conifercone Cap