Meadow Mushroom 
Meadow Puffball 
Meadow waxcap 
Mealy amanita 
Megacollybia subfurfuracea 
Melanoleuca arcuata 
Melanoleuca melaleuca 
Merismodes Anomala 
Mica Cap 
Microporus affinis 
Microporus xanthopus 
Milking bonnet 
Milky bonnet 
Miller 
Mountain moss Psilocybe 
Mousepee Pinkgill 
Mower's Mushroom 
Mucronella bresadolae 
Mucronella fusiformis 
Mucronella pendula 
Mucronella pulchra 
Multiflora Rose Rust 
Muscinupta laevis 
Mustard Yellow Polypore