Death cap 
Deconica horizontalis 
Deconica merdaria 
Decorated Mop 
Decorated pholiota 
Deep root mushroom 
Deer shield 
Dermocybe splendida 
Desarmillaria caespitosa 
Desert Shaggymane 
Dictyonema glabratum 
Dripping Bonnet 
Dung roundhead 
Dung-loving Bird's-Nests 
Dung-loving Deconica 
Dusky Puffball 
Dwarf Bell 
Earthy inocybe 
Eastern American Blusher 
Eastern American Platterful Mushroom 
Eastern North American destroying angel 
Elegant Blue Webcap 
Elm Oyster 
Emperor Cortinar