Dermatocarpon luridum 
Dermatocarpon muhlenbergii 
Devil's matchstick 
Devil's Matchsticks 
Devil's urn 
Digüeñe 
Diploschistes scruposus 
Diplotomma hedinii 
Dixie Reindeer Lichen 
Dog lichen 
Dog's Nose Fungus 
Dogwood Golden Canker 
Dragon Horn 
Dune Cup 
Dusty lemon crust 
Dwarf Caterpillar Club 
Early false morel 
Eastern American Alder Tongue Gall Fungus 
Ebony cup 
Engyodontium aranearum 
Erioderma leylandii 
Erysiphe cichoracearum 
Evans' Deer Moss 
Eyelash cup